• Object#block in irb_binding (irb):4
  • Article#save $GemPath0/gems/activerecord-5.0.2/lib/active_record/suppressor.rb:40
    • ActiveRecord::SuppressorRegistry.suppressed $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:53
      • ActiveRecord::SuppressorRegistry.instance $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:44
        • #<Class:Thread>#current $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:45
        • Thread#[] $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:45
    • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/suppressor.rb:41
    • Module#name $GemPath0/gems/activerecord-5.0.2/lib/active_record/suppressor.rb:41
    • Article#save $GemPath0/gems/activerecord-5.0.2/lib/active_record/transactions.rb:317
      • Article#rollback_active_record_state! $GemPath0/gems/activerecord-5.0.2/lib/active_record/transactions.rb:332
        • Article#remember_transaction_record_state $GemPath0/gems/activerecord-5.0.2/lib/active_record/transactions.rb:413
          • Article#__temp__9646 $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:34
            • Article#_read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:65
              • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:66
              • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:43
                • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:36
          • Article#frozen? $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:452
            • Kernel#frozen? $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:453
          • Hash#reverse_merge! $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/reverse_merge.rb:17
            • Hash#merge! $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/reverse_merge.rb:19
        • Article#block in save $GemPath0/gems/activerecord-5.0.2/lib/active_record/transactions.rb:318
          • Article#with_transaction_returning_status $GemPath0/gems/activerecord-5.0.2/lib/active_record/transactions.rb:390
            • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/transactions.rb:392
            • Article.transaction $GemPath0/gems/activerecord-5.0.2/lib/active_record/transactions.rb:210
              • Article.connection $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:90
                • Article.retrieve_connection $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:127
                  • Article.connection_handler $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:121
                    • ActiveRecord::RuntimeRegistry.connection_handler $GemPath0/gems/activerecord-5.0.2/lib/active_record/runtime_registry.rb:18
                      • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:44
                        • #<Class:Thread>#current $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:45
                        • Thread#[] $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:45
                    • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                      • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                  • Article.connection_specification_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:98
                    • Class#superclass $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:100
                    • ApplicationRecord.connection_specification_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:98
                      • Class#superclass $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:100
                      • ActiveRecord::Base.connection_specification_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:98
                        • Kernel#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:99
                  • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:880
                    • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection_pool $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:916
                      • ActiveRecord::ConnectionAdapters::ConnectionHandler#owner_to_pool $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:933
                        • #<Class:Process>#pid $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:934
                        • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/map.rb:92
                          • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/collection/map/non_concurrent_map_backend.rb:19
                      • Concurrent::Map#fetch $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/map.rb:118
                        • Concurrent::Map#get_or_default $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/collection/map/non_concurrent_map_backend.rb:109
                          • Hash#fetch $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/collection/map/non_concurrent_map_backend.rb:110
                    • ActiveRecord::ConnectionAdapters::ConnectionPool#connection $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:363
                      • #<Class:Thread>#current $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:364
                      • ActiveRecord::ConnectionAdapters::ConnectionPool#connection_cache_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:585
                      • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/map.rb:92
                        • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/collection/map/non_concurrent_map_backend.rb:19
                          • Kernel#hash $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/collection/map/non_concurrent_map_backend.rb:20
              • ActiveRecord::ConnectionAdapters::SQLite3Adapter#transaction $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/database_statements.rb:225
                • ActiveRecord::ConnectionAdapters::SQLite3Adapter#current_transaction $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/database_statements.rb:240
                  • ActiveRecord::ConnectionAdapters::TransactionManager#current_transaction $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/transaction.rb:215
                    • Array#last $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/transaction.rb:216
                • ActiveRecord::ConnectionAdapters::NullTransaction#joinable? $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/transaction.rb:39
                • ActiveRecord::ConnectionAdapters::TransactionManager#within_new_transaction $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/transaction.rb:187
                  • ActiveRecord::ConnectionAdapters::TransactionManager#begin_transaction $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/transaction.rb:154
                    • ActiveRecord::ConnectionAdapters::TransactionManager#current_transaction $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/transaction.rb:215
                      • Array#last $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/transaction.rb:216
                    • ActiveRecord::ConnectionAdapters::NullTransaction#joinable? $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/transaction.rb:39
                    • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/transaction.rb:158
                      • ActiveRecord::ConnectionAdapters::RealTransaction#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/transaction.rb:128
                        • ActiveRecord::ConnectionAdapters::RealTransaction#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/transaction.rb:48
                          • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/transaction.rb:50
                            • ActiveRecord::ConnectionAdapters::TransactionState#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/transaction.rb:6
                          • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/transaction.rb:52
                        • ActiveRecord::ConnectionAdapters::SQLite3Adapter#begin_db_transaction $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/sqlite3_adapter.rb:235
                          • ActiveRecord::ConnectionAdapters::SQLite3Adapter#log $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract_adapter.rb:582
                            • Kernel#object_id $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract_adapter.rb:587
                            • ActiveSupport::Notifications::Instrumenter#instrument $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/instrumenter.rb:17
                              • ActiveSupport::Notifications::Instrumenter#start $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/instrumenter.rb:32
                                • ActiveSupport::Notifications::Fanout#start $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:41
                                  • ActiveSupport::Notifications::Fanout#listeners_for $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:53
                                    • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/map.rb:92
                                      • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/collection/map/non_concurrent_map_backend.rb:19
                                  • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:42
                                    • ActiveSupport::Notifications::Fanout#block in start $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:42
                                      • ActiveSupport::Notifications::Fanout::Subscribers::Evented#start $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:97
                                        • ActiveRecord::LogSubscriber#start $GemPath0/gems/activesupport-5.0.2/lib/active_support/log_subscriber.rb:78
                                          • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:90
                                            • ActiveRecord::Base.logger $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                          • ActiveRecord::LogSubscriber#start $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:80
                                            • #<Class:Time>#now $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:81
                                              • Time#initialize $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:81
                                                • Integer#+ $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:81
                                            • Class#new $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:81
                                              • ActiveSupport::Notifications::Event#initialize $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/instrumenter.rb:56
                                                • Kernel#dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/instrumenter.rb:58
                                                  • Kernel#initialize_dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/instrumenter.rb:58
                                                    • Hash#initialize_copy $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/instrumenter.rb:58
                                            • ActiveRecord::LogSubscriber#event_stack $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:100
                                              • ActiveSupport::SubscriberQueueRegistry.instance $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:44
                                                • #<Class:Thread>#current $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:45
                                                • Thread#[] $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:45
                                              • ActiveSupport::SubscriberQueueRegistry#get_queue $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:116
                                            • Array#last $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:82
                                            • ActiveRecord::LogSubscriber#event_stack $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:100
                                              • ActiveSupport::SubscriberQueueRegistry.instance $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:44
                                                • #<Class:Thread>#current $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:45
                                                • Thread#[] $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:45
                                              • ActiveSupport::SubscriberQueueRegistry#get_queue $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:116
                                            • Array#push $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:85
                                    • ActiveSupport::Notifications::Fanout#block in start $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:42
                                      • ActiveSupport::Notifications::Fanout::Subscribers::Evented#start $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:97
                                        • ActiveRecord::ExplainSubscriber#start $GemPath0/gems/activerecord-5.0.2/lib/active_record/explain_subscriber.rb:6
                              • ActiveRecord::ConnectionAdapters::SQLite3Adapter#block in log $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract_adapter.rb:589
                                • ActiveRecord::ConnectionAdapters::SQLite3Adapter#block in begin_db_transaction $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/sqlite3_adapter.rb:236
                                  • SQLite3::Database#transaction $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:495
                                    • Symbol#to_s $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:496
                                    • SQLite3::Database#execute $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:122
                                      • Kernel#nil? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:123
                                      • SQLite3::Database#prepare $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:90
                                        • Class#new $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:91
                                          • SQLite3::Statement#initialize $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:91
                                        • Kernel#block_given? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:92
                                        • SQLite3::Database#block in execute $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:137
                                          • SQLite3::Statement#bind_params $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:35
                                            • Array#flatten $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:37
                                            • Array#each $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:37
                                          • SQLite3::Statement#columns $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:101
                                            • SQLite3::Statement#get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:135
                                              • SQLite3::Statement#column_count $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                              • Class#new $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                • Array#initialize $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                              • SQLite3::Statement#column_count $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                              • Class#new $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                • Array#initialize $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                          • Kernel#block_given? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:142
                                          • Enumerable#map $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:152
                                            • SQLite3::Statement#each $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:106
                                              • Kernel#loop $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:107
                                                • SQLite3::Statement#block in each $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:107
                                                  • SQLite3::Statement#step $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                                    • SQLite3::Database#encoding $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                                  • SQLite3::Statement#done? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:109
                                        • SQLite3::Statement#closed? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:97
                                        • SQLite3::Statement#close $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:97
                                    • Kernel#block_given? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:498
                              • ActiveSupport::Notifications::Instrumenter#finish_with_state $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/instrumenter.rb:41
                                • ActiveSupport::Notifications::Fanout#finish $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:45
                                  • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:46
                                    • ActiveSupport::Notifications::Fanout#block in finish $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:46
                                      • ActiveSupport::Notifications::Fanout::Subscribers::Evented#finish $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:101
                                        • ActiveRecord::LogSubscriber#finish $GemPath0/gems/activesupport-5.0.2/lib/active_support/log_subscriber.rb:82
                                          • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:90
                                            • ActiveRecord::Base.logger $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                          • ActiveRecord::LogSubscriber#finish $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:88
                                            • #<Class:Time>#now $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:89
                                              • Time#initialize $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:89
                                                • Integer#+ $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:89
                                            • ActiveRecord::LogSubscriber#event_stack $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:100
                                              • ActiveSupport::SubscriberQueueRegistry.instance $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:44
                                                • #<Class:Thread>#current $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:45
                                                • Thread#[] $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:45
                                              • ActiveSupport::SubscriberQueueRegistry#get_queue $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:116
                                            • Array#pop $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:90
                                            • Hash#merge! $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:92
                                            • String#split $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:94
                                            • Array#first $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:94
                                            • ActiveRecord::LogSubscriber#sql $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:37
                                              • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:38
                                              • ActiveRecord::LogSubscriber.runtime $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:9
                                                • ActiveRecord::RuntimeRegistry.sql_runtime $GemPath0/gems/activerecord-5.0.2/lib/active_record/runtime_registry.rb:18
                                                  • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:44
                                                    • #<Class:Thread>#current $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:45
                                                    • Thread#[] $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:45
                                              • ActiveSupport::Notifications::Event#duration $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/instrumenter.rb:78
                                                • Time#minus_with_coercion $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/calculations.rb:258
                                                  • Kernel#respond_to? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/calculations.rb:259
                                                  • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/calculations.rb:260
                                                  • Time#minus_with_duration $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/calculations.rb:245
                                                    • ActiveSupport::Duration.=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/duration.rb:102
                                                      • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/duration.rb:103
                                                    • Time#- $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/calculations.rb:249
                                                      • Integer#- $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/calculations.rb:249
                                                      • Numeric#quo $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/calculations.rb:249
                                                        • Integer#fdiv $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/calculations.rb:249
                                              • ActiveRecord::LogSubscriber.runtime= $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:5
                                                • ActiveRecord::RuntimeRegistry.sql_runtime= $GemPath0/gems/activerecord-5.0.2/lib/active_record/runtime_registry.rb:19
                                                  • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:44
                                                    • #<Class:Thread>#current $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:45
                                                    • Thread#[] $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:45
                                              • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:90
                                                • ActiveRecord::Base.logger $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                              • ActiveSupport::Logger#debug? $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger.rb:92
                                                • ActiveSupport::Logger#level $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:27
                                                  • ActiveSupport::Logger#local_level $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:15
                                                    • ActiveSupport::Logger#local_log_id $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:11
                                                      • #<Class:Thread>#current $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:12
                                                      • BasicObject#__id__ $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:12
                                                    • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/map.rb:92
                                                      • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/collection/map/non_concurrent_map_backend.rb:19
                                              • Array#include? $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:43
                                                • String#== $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:43
                                                • String#== $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:43
                                              • NilClass#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:45
                                              • ActiveSupport::Notifications::Event#duration $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/instrumenter.rb:78
                                              • Float#round $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:45
                                              • Float#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/numeric/conversions.rb:103
                                                • NilClass#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/numeric/conversions.rb:105
                                                • Float#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/numeric/conversions.rb:106
                                              • ActiveRecord::LogSubscriber#colorize_payload_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:61
                                                • NilClass#blank? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/blank.rb:52
                                                • ActiveRecord::LogSubscriber#color $GemPath0/gems/activesupport-5.0.2/lib/active_support/log_subscriber.rb:102
                                                  • ActiveRecord::LogSubscriber#colorize_logging $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:67
                                                  • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/log_subscriber.rb:104
                                              • ActiveRecord::LogSubscriber#sql_color $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:69
                                                • Regexp#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:71
                                                • Regexp#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:73
                                                • Regexp#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:73
                                                • Regexp#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:75
                                                • Regexp#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:77
                                                • Regexp#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:79
                                                • Regexp#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:81
                                                • Regexp#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:83
                                              • ActiveRecord::LogSubscriber#color $GemPath0/gems/activesupport-5.0.2/lib/active_support/log_subscriber.rb:102
                                                • ActiveRecord::LogSubscriber#colorize_logging $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:67
                                                • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/log_subscriber.rb:104
                                              • NilClass#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:56
                                              • ActiveRecord::LogSubscriber#debug $GemPath0/gems/activesupport-5.0.2/lib/active_support/log_subscriber.rb:92
                                                • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:90
                                                  • ActiveRecord::Base.logger $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:90
                                                  • ActiveRecord::Base.logger $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                • ActiveSupport::Logger#debug /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:490
                                                  • ActiveSupport::Logger#block (2 levels) in broadcast $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger.rb:24
                                                    • ActiveSupport::Logger#block (2 levels) in broadcast $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger.rb:24
                                                      • ActiveSupport::Logger#add $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger.rb:85
                                                        • Kernel#nil? $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger.rb:86
                                                        • ActiveSupport::Logger#level $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:27
                                                          • ActiveSupport::Logger#local_level $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:15
                                                            • ActiveSupport::Logger#local_log_id $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:11
                                                              • #<Class:Thread>#current $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:12
                                                              • BasicObject#__id__ $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:12
                                                            • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/map.rb:92
                                                              • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/collection/map/non_concurrent_map_backend.rb:19
                                                        • ActiveSupport::Logger#add /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:455
                                                          • Kernel#nil? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:457
                                                          • NilClass#nil? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:461
                                                          • Kernel#block_given? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:462
                                                          • ActiveSupport::Logger#format_severity /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:577
                                                          • #<Class:Time>#now /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:470
                                                            • Time#initialize /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:470
                                                              • Integer#+ /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:470
                                                          • ActiveSupport::Logger#format_message /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:581
                                                            • ActiveSupport::Logger::SimpleFormatter#call $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger.rb:101
                                                              • Module#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger.rb:102
                                                          • Logger::LogDevice#write /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:684
                                                            • Logger::LogDevice#mon_synchronize /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:211
                                                              • Logger::LogDevice#mon_enter /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:185
                                                                • #<Class:Thread>#current /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:186
                                                                • Thread::Mutex#lock /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:187
                                                                • #<Class:Thread>#current /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:188
                                                              • Logger::LogDevice#block in write /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:686
                                                                • IO#write /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:695
                                                              • Logger::LogDevice#mon_exit /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:197
                                                                • Logger::LogDevice#mon_check_owner /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:247
                                                                  • #<Class:Thread>#current /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:248
                                                                • Thread::Mutex#unlock /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:202
                                                      • ActiveSupport::Logger#add $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger.rb:85
                                                        • Kernel#nil? $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger.rb:86
                                                        • ActiveSupport::Logger#level $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:27
                                                          • ActiveSupport::Logger#local_level $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:15
                                                            • ActiveSupport::Logger#local_log_id $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:11
                                                              • #<Class:Thread>#current $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:12
                                                              • BasicObject#__id__ $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:12
                                                            • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/map.rb:92
                                                              • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/collection/map/non_concurrent_map_backend.rb:19
                                                        • ActiveSupport::Logger#add /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:455
                                                          • Kernel#nil? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:457
                                                          • NilClass#nil? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:461
                                                          • Kernel#block_given? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:462
                                                          • ActiveSupport::Logger#format_severity /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:577
                                                          • #<Class:Time>#now /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:470
                                                            • Time#initialize /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:470
                                                              • Integer#+ /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:470
                                                          • ActiveSupport::Logger#format_message /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:581
                                                            • ActiveSupport::Logger::SimpleFormatter#call $GemPath0/gems/activesupport-5.0.2/lib/active_support/tagged_logging.rb:20
                                                              • ActiveSupport::Logger::SimpleFormatter#tags_text $GemPath0/gems/activesupport-5.0.2/lib/active_support/tagged_logging.rb:51
                                                                • ActiveSupport::Logger::SimpleFormatter#current_tags $GemPath0/gems/activesupport-5.0.2/lib/active_support/tagged_logging.rb:45
                                                                  • #<Class:Thread>#current $GemPath0/gems/activesupport-5.0.2/lib/active_support/tagged_logging.rb:48
                                                                  • Thread#[] $GemPath0/gems/activesupport-5.0.2/lib/active_support/tagged_logging.rb:48
                                                                • Array#any? $GemPath0/gems/activesupport-5.0.2/lib/active_support/tagged_logging.rb:53
                                                              • NilClass#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/tagged_logging.rb:21
                                                              • ActiveSupport::Logger::SimpleFormatter#call $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger.rb:101
                                                                • Module#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger.rb:102
                                                          • Logger::LogDevice#write /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:684
                                                            • Logger::LogDevice#mon_synchronize /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:211
                                                              • Logger::LogDevice#mon_enter /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:185
                                                                • #<Class:Thread>#current /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:186
                                                                • Thread::Mutex#lock /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:187
                                                                • #<Class:Thread>#current /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:188
                                                              • Logger::LogDevice#block in write /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:686
                                                                • IO#write /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:695
                                                              • Logger::LogDevice#mon_exit /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:197
                                                                • Logger::LogDevice#mon_check_owner /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:247
                                                                  • #<Class:Thread>#current /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:248
                                                                • Thread::Mutex#unlock /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:202
                                    • ActiveSupport::Notifications::Fanout#block in finish $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:46
                                      • ActiveSupport::Notifications::Fanout::Subscribers::Evented#finish $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:101
                                        • ActiveRecord::ExplainSubscriber#finish $GemPath0/gems/activerecord-5.0.2/lib/active_record/explain_subscriber.rb:10
                                          • ActiveRecord::ExplainRegistry.collect? $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:53
                                            • ActiveRecord::ExplainRegistry.instance $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:44
                                              • #<Class:Thread>#current $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:45
                                              • Thread#[] $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:45
                                            • ActiveRecord::ExplainRegistry#collect? $GemPath0/gems/activerecord-5.0.2/lib/active_record/explain_registry.rb:21
                    • Array#push $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/transaction.rb:164
                  • ActiveRecord::ConnectionAdapters::SQLite3Adapter#block in transaction $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/database_statements.rb:232
                    • Article#block in with_transaction_returning_status $GemPath0/gems/activerecord-5.0.2/lib/active_record/transactions.rb:392
                      • Article#add_to_transaction $GemPath0/gems/activerecord-5.0.2/lib/active_record/transactions.rb:374
                        • Article#has_transactional_callbacks? $GemPath0/gems/activerecord-5.0.2/lib/active_record/transactions.rb:477
                          • Article#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                            • Article#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                              • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:111
                              • Kernel#class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                              • Kernel#public_send $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                  • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                          • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:480
                          • Article#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                            • Article#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                              • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:111
                              • Kernel#class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                              • Kernel#public_send $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                  • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                          • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:480
                          • Article#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                            • Article#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                              • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:111
                              • Kernel#class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                              • Kernel#public_send $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                  • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                          • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:480
                        • Article#sync_with_transaction_state $GemPath0/gems/activerecord-5.0.2/lib/active_record/transactions.rb:498
                          • Article#update_attributes_from_transaction_state $GemPath0/gems/activerecord-5.0.2/lib/active_record/transactions.rb:502
                        • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/transactions.rb:379
                        • Article.connection $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:90
                          • Article.retrieve_connection $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:127
                            • Article.connection_handler $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:121
                              • ActiveRecord::RuntimeRegistry.connection_handler $GemPath0/gems/activerecord-5.0.2/lib/active_record/runtime_registry.rb:18
                                • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:44
                                  • #<Class:Thread>#current $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:45
                                  • Thread#[] $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:45
                              • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                            • Article.connection_specification_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:98
                              • Class#superclass $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:100
                              • ApplicationRecord.connection_specification_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:98
                                • Class#superclass $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:100
                                • ActiveRecord::Base.connection_specification_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:98
                                  • Kernel#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:99
                            • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:880
                              • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection_pool $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:916
                                • ActiveRecord::ConnectionAdapters::ConnectionHandler#owner_to_pool $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:933
                                  • #<Class:Process>#pid $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:934
                                  • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/map.rb:92
                                    • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/collection/map/non_concurrent_map_backend.rb:19
                                • Concurrent::Map#fetch $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/map.rb:118
                                  • Concurrent::Map#get_or_default $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/collection/map/non_concurrent_map_backend.rb:109
                                    • Hash#fetch $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/collection/map/non_concurrent_map_backend.rb:110
                              • ActiveRecord::ConnectionAdapters::ConnectionPool#connection $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:363
                                • #<Class:Thread>#current $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:364
                                • ActiveRecord::ConnectionAdapters::ConnectionPool#connection_cache_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:585
                                • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/map.rb:92
                                  • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/collection/map/non_concurrent_map_backend.rb:19
                                    • Kernel#hash $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/collection/map/non_concurrent_map_backend.rb:20
                        • ActiveRecord::ConnectionAdapters::SQLite3Adapter#transaction_state $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/database_statements.rb:256
                          • ActiveRecord::ConnectionAdapters::SQLite3Adapter#current_transaction $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/database_statements.rb:240
                            • ActiveRecord::ConnectionAdapters::TransactionManager#current_transaction $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/transaction.rb:215
                              • Array#last $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/transaction.rb:216
                        • Article#set_transaction_state $GemPath0/gems/activerecord-5.0.2/lib/active_record/transactions.rb:473
                        • Article#remember_transaction_record_state $GemPath0/gems/activerecord-5.0.2/lib/active_record/transactions.rb:413
                          • Article#__temp__9646 $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:34
                            • Article#_read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:65
                              • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:66
                              • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:43
                                • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:36
                          • Article#frozen? $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:452
                            • Kernel#frozen? $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:453
                          • Hash#reverse_merge! $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/reverse_merge.rb:17
                            • Hash#merge! $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/reverse_merge.rb:19
                              • Hash#block in reverse_merge! $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/reverse_merge.rb:19
                              • Hash#block in reverse_merge! $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/reverse_merge.rb:19
                              • Hash#block in reverse_merge! $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/reverse_merge.rb:19
                      • Article#block (2 levels) in save $GemPath0/gems/activerecord-5.0.2/lib/active_record/transactions.rb:319
                        • Article#save $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/dirty.rb:21
                          • Article#save $GemPath0/gems/activerecord-5.0.2/lib/active_record/validations.rb:43
                            • Article#perform_validations $GemPath0/gems/activerecord-5.0.2/lib/active_record/validations.rb:81
                              • Article#valid? $GemPath0/gems/activerecord-5.0.2/lib/active_record/validations.rb:63
                                • Article#default_validation_context $GemPath0/gems/activerecord-5.0.2/lib/active_record/validations.rb:73
                                  • Article#new_record? $GemPath0/gems/activerecord-5.0.2/lib/active_record/persistence.rb:85
                                    • Article#sync_with_transaction_state $GemPath0/gems/activerecord-5.0.2/lib/active_record/transactions.rb:498
                                      • Article#update_attributes_from_transaction_state $GemPath0/gems/activerecord-5.0.2/lib/active_record/transactions.rb:502
                                        • ActiveRecord::ConnectionAdapters::TransactionState#finalized? $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/transaction.rb:10
                                • Article#valid? $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations.rb:335
                                  • Article#errors $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations.rb:300
                                    • Class#new $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations.rb:301
                                      • ActiveModel::Errors#initialize $GemPath0/gems/activemodel-5.0.2/lib/active_model/errors.rb:72
                                        • ActiveModel::Errors#apply_default_array $GemPath0/gems/activemodel-5.0.2/lib/active_model/errors.rb:544
                                          • Kernel#proc $GemPath0/gems/activemodel-5.0.2/lib/active_model/errors.rb:545
                                          • Hash#default_proc= $GemPath0/gems/activemodel-5.0.2/lib/active_model/errors.rb:545
                                            • Proc#to_proc $GemPath0/gems/activemodel-5.0.2/lib/active_model/errors.rb:545
                                        • ActiveModel::Errors#apply_default_array $GemPath0/gems/activemodel-5.0.2/lib/active_model/errors.rb:544
                                          • Kernel#proc $GemPath0/gems/activemodel-5.0.2/lib/active_model/errors.rb:545
                                          • Hash#default_proc= $GemPath0/gems/activemodel-5.0.2/lib/active_model/errors.rb:545
                                            • Proc#to_proc $GemPath0/gems/activemodel-5.0.2/lib/active_model/errors.rb:545
                                  • ActiveModel::Errors#clear $GemPath0/gems/activemodel-5.0.2/lib/active_model/errors.rb:101
                                    • Hash#clear $GemPath0/gems/activemodel-5.0.2/lib/active_model/errors.rb:102
                                    • Hash#clear $GemPath0/gems/activemodel-5.0.2/lib/active_model/errors.rb:103
                                  • Article#run_validations! $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations/callbacks.rb:112
                                    • Article#_run_validation_callbacks $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:749
                                      • Article#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                        • Article#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                          • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:111
                                          • Kernel#class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                          • Kernel#public_send $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                            • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                              • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                      • Article#__run_callbacks__ $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:95
                                        • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:480
                                        • ActiveSupport::Callbacks::CallbackChain#compile $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:504
                                        • #<Class:ActiveSupport::Callbacks::Filters::Environment>#new $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:100
                                          • Struct#initialize $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:100
                                        • ActiveSupport::Callbacks::CallbackSequence#call $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:453
                                          • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:454
                                          • ActiveSupport::Callbacks::CallbackChain#block (2 levels) in compile $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:506
                                            • ActiveSupport::Callbacks::Filters::End#call $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:124
                                              • ActiveSupport::Callbacks::Filters::Environment#run_block $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:125
                                              • ActiveSupport::Callbacks::Filters::Environment#halted $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:126
                                              • Article#block in run_validations! $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations/callbacks.rb:113
                                                • Article#run_validations! $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations.rb:407
                                                  • Article#_run_validate_callbacks $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:749
                                                    • Article#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                                      • Article#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                                        • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:111
                                                        • Kernel#class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                                        • Kernel#public_send $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                                          • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                            • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                    • Article#__run_callbacks__ $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:95
                                                      • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:480
                                                      • ActiveSupport::Callbacks::CallbackChain#compile $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:504
                                                      • #<Class:ActiveSupport::Callbacks::Filters::Environment>#new $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:100
                                                        • Struct#initialize $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:100
                                                      • ActiveSupport::Callbacks::CallbackSequence#call $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:453
                                                        • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:454
                                                          • ActiveSupport::Callbacks::CallbackSequence#block in call $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:454
                                                            • ActiveSupport::Callbacks::Filters::Before.block in halting $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:163
                                                              • ActiveSupport::Callbacks::Filters::Environment#target $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:164
                                                              • ActiveSupport::Callbacks::Filters::Environment#value $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:165
                                                              • ActiveSupport::Callbacks::Filters::Environment#halted $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:166
                                                              • ActiveSupport::Callbacks::CallbackChain#block in default_terminator $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:544
                                                                • Kernel#catch $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:546
                                                                  • ActiveSupport::Callbacks::CallbackChain#block (2 levels) in default_terminator $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:546
                                                                    • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:547
                                                                    • ActiveSupport::Callbacks::Filters::Before.block (2 levels) in halting $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:169
                                                                      • ActiveSupport::Callbacks::Callback#block in make_lambda $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:382
                                                                        • Article#block in define_non_cyclic_method $GemPath0/gems/activerecord-5.0.2/lib/active_record/autosave_association.rb:152
                                                                          • Article#block in define_non_cyclic_method $GemPath0/gems/activerecord-5.0.2/lib/active_record/autosave_association.rb:152
                                                                            • BasicObject#instance_eval $GemPath0/gems/activerecord-5.0.2/lib/active_record/autosave_association.rb:158
                                                                              • Article#block in define_autosave_validation_callbacks $GemPath0/gems/activerecord-5.0.2/lib/active_record/autosave_association.rb:218
                                                                                • Article#validate_collection_association $GemPath0/gems/activerecord-5.0.2/lib/active_record/autosave_association.rb:317
                                                                                  • Article#association_instance_get $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:273
                                                              • ActiveSupport::Callbacks::Filters::Environment#halted $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:172
                                                          • ActiveSupport::Callbacks::CallbackSequence#block in call $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:454
                                                            • ActiveSupport::Callbacks::Filters::Before.block in halting $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:163
                                                              • ActiveSupport::Callbacks::Filters::Environment#target $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:164
                                                              • ActiveSupport::Callbacks::Filters::Environment#value $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:165
                                                              • ActiveSupport::Callbacks::Filters::Environment#halted $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:166
                                                              • ActiveSupport::Callbacks::CallbackChain#block in default_terminator $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:544
                                                                • Kernel#catch $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:546
                                                                  • ActiveSupport::Callbacks::CallbackChain#block (2 levels) in default_terminator $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:546
                                                                    • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:547
                                                                    • ActiveSupport::Callbacks::Filters::Before.block (2 levels) in halting $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:169
                                                                      • ActiveSupport::Callbacks::Callback#block in make_lambda $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:404
                                                                        • Kernel#public_send $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:405
                                                                          • ActiveRecord::Validations::PresenceValidator#validate $GemPath0/gems/activemodel-5.0.2/lib/active_model/validator.rb:147
                                                                            • Array#each $GemPath0/gems/activemodel-5.0.2/lib/active_model/validator.rb:148
                                                                              • ActiveRecord::Validations::PresenceValidator#block in validate $GemPath0/gems/activemodel-5.0.2/lib/active_model/validator.rb:148
                                                                                • Article#__temp__479647c656 $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:34
                                                                                  • Article#_read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:65
                                                                                    • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:66
                                                                                    • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:43
                                                                                      • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                                                                      • ActiveRecord::Attribute::FromUser#value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:36
                                                                                • Kernel#nil? $GemPath0/gems/activemodel-5.0.2/lib/active_model/validator.rb:150
                                                                                • String#blank? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/blank.rb:114
                                                                                  • Regexp#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/blank.rb:118
                                                                                • ActiveRecord::Validations::PresenceValidator#validate_each $GemPath0/gems/activerecord-5.0.2/lib/active_record/validations/presence.rb:4
                                                                                  • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/validations/presence.rb:5
                                                                                  • Article._reflect_on_association $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:113
                                                                                    • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                      • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                    • Symbol#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:114
                                                                                  • ActiveRecord::Validations::PresenceValidator#validate_each $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations/presence.rb:6
                                                                                    • String#blank? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/blank.rb:114
                                                                                      • Regexp#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/blank.rb:118
                                                              • ActiveSupport::Callbacks::Filters::Environment#halted $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:172
                                                          • ActiveSupport::Callbacks::CallbackSequence#block in call $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:454
                                                            • ActiveSupport::Callbacks::Filters::Before.block in halting $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:163
                                                              • ActiveSupport::Callbacks::Filters::Environment#target $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:164
                                                              • ActiveSupport::Callbacks::Filters::Environment#value $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:165
                                                              • ActiveSupport::Callbacks::Filters::Environment#halted $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:166
                                                              • ActiveSupport::Callbacks::CallbackChain#block in default_terminator $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:544
                                                                • Kernel#catch $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:546
                                                                  • ActiveSupport::Callbacks::CallbackChain#block (2 levels) in default_terminator $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:546
                                                                    • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:547
                                                                    • ActiveSupport::Callbacks::Filters::Before.block (2 levels) in halting $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:169
                                                                      • ActiveSupport::Callbacks::Callback#block in make_lambda $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:404
                                                                        • Kernel#public_send $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:405
                                                                          • ActiveRecord::Validations::LengthValidator#validate $GemPath0/gems/activemodel-5.0.2/lib/active_model/validator.rb:147
                                                                            • Array#each $GemPath0/gems/activemodel-5.0.2/lib/active_model/validator.rb:148
                                                                              • ActiveRecord::Validations::LengthValidator#block in validate $GemPath0/gems/activemodel-5.0.2/lib/active_model/validator.rb:148
                                                                                • Article#__temp__479647c656 $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:34
                                                                                  • Article#_read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:65
                                                                                    • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:66
                                                                                    • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:43
                                                                                      • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                                                                      • ActiveRecord::Attribute::FromUser#value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:36
                                                                                • Kernel#nil? $GemPath0/gems/activemodel-5.0.2/lib/active_model/validator.rb:150
                                                                                • String#blank? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/blank.rb:114
                                                                                  • Regexp#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/blank.rb:118
                                                                                • ActiveRecord::Validations::LengthValidator#validate_each $GemPath0/gems/activerecord-5.0.2/lib/active_record/validations/length.rb:4
                                                                                  • Kernel#respond_to? $GemPath0/gems/activerecord-5.0.2/lib/active_record/validations/length.rb:5
                                                                                  • ActiveRecord::Validations::LengthValidator#validate_each $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations/length.rb:61
                                                                                    • ActiveRecord::Validations::LengthValidator#tokenize $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations/length.rb:83
                                                                                    • Kernel#respond_to? $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations/length.rb:63
                                                                                    • Hash#except $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/except.rb:10
                                                                                      • Kernel#dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/except.rb:11
                                                                                        • Kernel#initialize_dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/except.rb:11
                                                                                          • Hash#initialize_copy $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/except.rb:11
                                                                                      • Hash#except! $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/except.rb:18
                                                                                        • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/except.rb:19
                                                                                          • Hash#block in except! $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/except.rb:19
                                                                                            • Hash#delete $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/except.rb:19
                                                                                          • Hash#block in except! $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/except.rb:19
                                                                                            • Hash#delete $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/except.rb:19
                                                                                          • Hash#block in except! $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/except.rb:19
                                                                                            • Hash#delete $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/except.rb:19
                                                                                          • Hash#block in except! $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/except.rb:19
                                                                                            • Hash#delete $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/except.rb:19
                                                                                          • Hash#block in except! $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/except.rb:19
                                                                                            • Hash#delete $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/except.rb:19
                                                                                          • Hash#block in except! $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/except.rb:19
                                                                                            • Hash#delete $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/except.rb:19
                                                                                          • Hash#block in except! $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/except.rb:19
                                                                                            • Hash#delete $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/except.rb:19
                                                                                    • Hash#each $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations/length.rb:66
                                                                                      • ActiveRecord::Validations::LengthValidator#block in validate_each $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations/length.rb:66
                                                                                      • ActiveRecord::Validations::LengthValidator#block in validate_each $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations/length.rb:66
                                                                                        • Kernel#nil? $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations/length.rb:69
                                                                                        • Integer#>= $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations/length.rb:70
                                                                                      • ActiveRecord::Validations::LengthValidator#block in validate_each $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations/length.rb:66
                                                              • ActiveSupport::Callbacks::Filters::Environment#halted $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:172
                                                        • ActiveSupport::Callbacks::CallbackChain#block (2 levels) in compile $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:506
                                                          • ActiveSupport::Callbacks::Filters::End#call $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:124
                                                            • ActiveSupport::Callbacks::Filters::Environment#run_block $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:125
                                                            • ActiveSupport::Callbacks::Filters::Environment#halted $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:126
                                                        • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:456
                                                      • ActiveSupport::Callbacks::Filters::Environment#value $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:101
                                                  • Article#errors $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations.rb:300
                                                  • ActiveModel::Errors#empty? $GemPath0/gems/activemodel-5.0.2/lib/active_model/errors.rb:242
                                                    • ActiveModel::Errors#size $GemPath0/gems/activemodel-5.0.2/lib/active_model/errors.rb:216
                                                      • ActiveModel::Errors#values $GemPath0/gems/activemodel-5.0.2/lib/active_model/errors.rb:225
                                                        • Hash#values $GemPath0/gems/activemodel-5.0.2/lib/active_model/errors.rb:226
                                                      • Array#flatten $GemPath0/gems/activemodel-5.0.2/lib/active_model/errors.rb:217
                                                    • Numeric#zero? $GemPath0/gems/activemodel-5.0.2/lib/active_model/errors.rb:243
                                          • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:456
                                            • ActiveSupport::Callbacks::CallbackSequence#block in call $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:456
                                              • ActiveSupport::Callbacks::Filters::After.block in halting $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:216
                                                • ActiveSupport::Callbacks::Filters::Environment#halted $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:217
                                                • ActiveSupport::Callbacks::Filters::Environment#target $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:218
                                                • ActiveSupport::Callbacks::Filters::Environment#value $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:218
                                                • ActiveSupport::Callbacks::Callback#block in make_lambda $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:382
                                                  • Article#_ensure_no_duplicate_errors $GemPath0/gems/activerecord-5.0.2/lib/active_record/autosave_association.rb:485
                                                    • Article#errors $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations.rb:300
                                                    • Hash#each_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/autosave_association.rb:486
                                        • ActiveSupport::Callbacks::Filters::Environment#value $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:101
                                • Article#errors $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations.rb:300
                                • ActiveModel::Errors#empty? $GemPath0/gems/activemodel-5.0.2/lib/active_model/errors.rb:242
                                  • ActiveModel::Errors#size $GemPath0/gems/activemodel-5.0.2/lib/active_model/errors.rb:216
                                    • ActiveModel::Errors#values $GemPath0/gems/activemodel-5.0.2/lib/active_model/errors.rb:225
                                      • Hash#values $GemPath0/gems/activemodel-5.0.2/lib/active_model/errors.rb:226
                                    • Array#flatten $GemPath0/gems/activemodel-5.0.2/lib/active_model/errors.rb:217
                                  • Numeric#zero? $GemPath0/gems/activemodel-5.0.2/lib/active_model/errors.rb:243
                            • Article#save $GemPath0/gems/activerecord-5.0.2/lib/active_record/persistence.rb:124
                              • Article#create_or_update $GemPath0/gems/activerecord-5.0.2/lib/active_record/callbacks.rb:297
                                • Article#_run_save_callbacks $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:749
                                  • Article#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                    • Article#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                      • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:111
                                      • Kernel#class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                      • Kernel#public_send $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                        • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                          • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                  • Article#__run_callbacks__ $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:95
                                    • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:480
                                    • ActiveSupport::Callbacks::CallbackChain#compile $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:504
                                    • #<Class:ActiveSupport::Callbacks::Filters::Environment>#new $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:100
                                      • Struct#initialize $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:100
                                    • ActiveSupport::Callbacks::CallbackSequence#call $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:453
                                      • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:454
                                        • ActiveSupport::Callbacks::CallbackSequence#block in call $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:454
                                          • ActiveSupport::Callbacks::Filters::Before.block in halting $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:163
                                            • ActiveSupport::Callbacks::Filters::Environment#target $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:164
                                            • ActiveSupport::Callbacks::Filters::Environment#value $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:165
                                            • ActiveSupport::Callbacks::Filters::Environment#halted $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:166
                                            • ActiveRecord::Base.block in deprecated_false_terminator $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:767
                                              • Kernel#catch $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:769
                                                • ActiveRecord::Base.block (2 levels) in deprecated_false_terminator $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:769
                                                  • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:770
                                                  • ActiveSupport::Callbacks::Filters::Before.block (2 levels) in halting $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:169
                                                    • ActiveSupport::Callbacks::Callback#block in make_lambda $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:382
                                                      • Article#before_save_collection_association $GemPath0/gems/activerecord-5.0.2/lib/active_record/autosave_association.rb:369
                                                        • Article#new_record? $GemPath0/gems/activerecord-5.0.2/lib/active_record/persistence.rb:85
                                                          • Article#sync_with_transaction_state $GemPath0/gems/activerecord-5.0.2/lib/active_record/transactions.rb:498
                                                            • Article#update_attributes_from_transaction_state $GemPath0/gems/activerecord-5.0.2/lib/active_record/transactions.rb:502
                                                              • ActiveRecord::ConnectionAdapters::TransactionState#finalized? $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/transaction.rb:10
                                                  • ActiveSupport::Callbacks.halt_and_display_warning_on_return_false $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                            • ActiveSupport::Callbacks::Filters::Environment#halted $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:172
                                      • ActiveSupport::Callbacks::CallbackChain#block (2 levels) in compile $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:506
                                        • ActiveSupport::Callbacks::Filters::End#call $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:124
                                          • ActiveSupport::Callbacks::Filters::Environment#run_block $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:125
                                          • ActiveSupport::Callbacks::Filters::Environment#halted $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:126
                                          • Article#block in create_or_update $GemPath0/gems/activerecord-5.0.2/lib/active_record/callbacks.rb:298
                                            • Article#create_or_update $GemPath0/gems/activerecord-5.0.2/lib/active_record/persistence.rb:538
                                              • Article#readonly? $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:467
                                              • Article#new_record? $GemPath0/gems/activerecord-5.0.2/lib/active_record/persistence.rb:85
                                                • Article#sync_with_transaction_state $GemPath0/gems/activerecord-5.0.2/lib/active_record/transactions.rb:498
                                                  • Article#update_attributes_from_transaction_state $GemPath0/gems/activerecord-5.0.2/lib/active_record/transactions.rb:502
                                                    • ActiveRecord::ConnectionAdapters::TransactionState#finalized? $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/transaction.rb:10
                                              • Article#_create_record $GemPath0/gems/activerecord-5.0.2/lib/active_record/timestamp.rb:56
                                                • Article#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                                  • Article#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                                    • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:111
                                                    • Kernel#class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                                    • Kernel#public_send $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                                      • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                        • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                • Article#current_time_from_proper_timezone $GemPath0/gems/activerecord-5.0.2/lib/active_record/timestamp.rb:120
                                                  • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/timestamp.rb:121
                                                  • Article.default_timezone $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                  • #<Class:Time>#now $GemPath0/gems/activerecord-5.0.2/lib/active_record/timestamp.rb:121
                                                    • Time#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/timestamp.rb:121
                                                      • Integer#+ $GemPath0/gems/activerecord-5.0.2/lib/active_record/timestamp.rb:121
                                                  • Time#utc $GemPath0/gems/activerecord-5.0.2/lib/active_record/timestamp.rb:121
                                                    • Integer#<=> $GemPath0/gems/activerecord-5.0.2/lib/active_record/timestamp.rb:121
                                                    • Integer#<=> $GemPath0/gems/activerecord-5.0.2/lib/active_record/timestamp.rb:121
                                                • Article#all_timestamp_attributes $GemPath0/gems/activerecord-5.0.2/lib/active_record/timestamp.rb:108
                                                  • Article#timestamp_attributes_for_create $GemPath0/gems/activerecord-5.0.2/lib/active_record/timestamp.rb:104
                                                  • Article#timestamp_attributes_for_update $GemPath0/gems/activerecord-5.0.2/lib/active_record/timestamp.rb:100
                                                • Array#each $GemPath0/gems/activerecord-5.0.2/lib/active_record/timestamp.rb:60
                                                  • Article#block in _create_record $GemPath0/gems/activerecord-5.0.2/lib/active_record/timestamp.rb:60
                                                    • Symbol#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/timestamp.rb:61
                                                    • Article#has_attribute? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:251
                                                      • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:252
                                                      • ActiveRecord::AttributeSet#key? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:28
                                                        • Hash#key? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:29
                                                        • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                                        • ActiveRecord::Attribute::FromDatabase#initialized? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:87
                                                    • Article#attribute_present? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:322
                                                      • Article#_read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:65
                                                        • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:66
                                                        • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:43
                                                          • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:36
                                                      • NilClass#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:324
                                                    • Article#write_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/write.rb:31
                                                      • Article#write_attribute_with_type_cast $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/write.rb:45
                                                        • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/write.rb:46
                                                        • ActiveRecord::AttributeSet#write_from_user $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:52
                                                          • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                                          • ActiveRecord::Attribute::FromDatabase#with_value_from_user $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:66
                                                            • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#block in delegating_block /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/delegate.rb:339
                                                              • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#block in delegating_block /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/delegate.rb:339
                                                                • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#__getobj__ /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/delegate.rb:384
                                                                • ActiveRecord::Type::DateTime#block in initialize $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/helpers/accepts_multiparameter_time.rb:14
                                                                  • ActiveRecord::Type::DateTime#block in initialize $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/helpers/accepts_multiparameter_time.rb:14
                                                                    • Kernel#is_a? $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/helpers/accepts_multiparameter_time.rb:15
                                                                    • ActiveRecord::Type::DateTime#assert_valid_value $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/value.rb:103
                                                            • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:68
                                                            • ActiveRecord::Attribute::FromDatabase.from_user $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:8
                                                              • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:9
                                                                • ActiveRecord::Attribute::FromUser#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:29
                                                  • Article#block in _create_record $GemPath0/gems/activerecord-5.0.2/lib/active_record/timestamp.rb:60
                                                    • Symbol#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/timestamp.rb:61
                                                    • Article#has_attribute? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:251
                                                      • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:252
                                                      • ActiveRecord::AttributeSet#key? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:28
                                                        • Hash#key? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:29
                                                  • Article#block in _create_record $GemPath0/gems/activerecord-5.0.2/lib/active_record/timestamp.rb:60
                                                    • Symbol#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/timestamp.rb:61
                                                    • Article#has_attribute? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:251
                                                      • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:252
                                                      • ActiveRecord::AttributeSet#key? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:28
                                                        • Hash#key? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:29
                                                        • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                                        • ActiveRecord::Attribute::FromDatabase#initialized? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:87
                                                    • Article#attribute_present? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:322
                                                      • Article#_read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:65
                                                        • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:66
                                                        • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:43
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                                                        • ActiveRecord::AttributeSet#write_from_user $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:52
                                                          • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                                          • ActiveRecord::Attribute::FromDatabase#with_value_from_user $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:66
                                                            • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#block in delegating_block /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/delegate.rb:339
                                                              • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#block in delegating_block /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/delegate.rb:339
                                                                • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#__getobj__ /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/delegate.rb:384
                                                                • ActiveRecord::Type::DateTime#block in initialize $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/helpers/accepts_multiparameter_time.rb:14
                                                                  • ActiveRecord::Type::DateTime#block in initialize $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/helpers/accepts_multiparameter_time.rb:14
                                                                    • Kernel#is_a? $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/helpers/accepts_multiparameter_time.rb:15
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                                                            • ActiveRecord::Attribute::FromDatabase.from_user $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:8
                                                              • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:9
                                                                • ActiveRecord::Attribute::FromUser#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:29
                                                  • Article#block in _create_record $GemPath0/gems/activerecord-5.0.2/lib/active_record/timestamp.rb:60
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                                                    • Article#has_attribute? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:251
                                                      • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:252
                                                      • ActiveRecord::AttributeSet#key? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:28
                                                        • Hash#key? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:29
                                                • Article#_create_record $GemPath0/gems/activerecord-5.0.2/lib/active_record/callbacks.rb:301
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                                                    • Article#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
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                                                          • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
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                                                        • Struct#initialize $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:100
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                                                        • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:454
                                                        • ActiveSupport::Callbacks::CallbackChain#block (2 levels) in compile $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:506
                                                          • ActiveSupport::Callbacks::Filters::End#call $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:124
                                                            • ActiveSupport::Callbacks::Filters::Environment#run_block $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:125
                                                            • ActiveSupport::Callbacks::Filters::Environment#halted $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:126
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                                                                  • Article#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:119
                                                                    • Kernel#public_send $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:119
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                                                                        • Article#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                                                          • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:111
                                                                          • Kernel#class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                                                          • Kernel#public_send $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                                                            • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
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                                                                  • Article#changed $GemPath0/gems/activemodel-5.0.2/lib/active_model/dirty.rb:145
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                                                                            • Hash#initialize $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:66
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                                                                              • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:141
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                                                                              • Hash#each_pair $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:144
                                                                            • Hash#to_hash $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:69
                                                                            • Hash#default $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:70
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                                                                            • Hash#each_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:33
                                                                            • Enumerable#select $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:33
                                                                              • Enumerator#each $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:33
                                                                                • Hash#each_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:33
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                                                                          • Class#new $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/indifferent_access.rb:9
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                                                                              • Hash#initialize $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:66
                                                                              • ActiveSupport::HashWithIndifferentAccess#update $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:140
                                                                                • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:141
                                                                                • Hash#to_hash $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:144
                                                                                • Hash#each_pair $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:144
                                                                              • Hash#to_hash $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:69
                                                                              • Hash#default $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:70
                                                                              • Hash#default_proc $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:71
                                                                        • Enumerable#each_with_object $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_mutation_tracker.rb:8
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                                                                            • ActiveRecord::AttributeMutationTracker#block in changed_values $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_mutation_tracker.rb:8
                                                                              • ActiveRecord::AttributeMutationTracker#changed? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_mutation_tracker.rb:23
                                                                                • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_mutation_tracker.rb:24
                                                                                • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
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                                                                                  • ActiveRecord::Attribute::FromDatabase#changed_from_assignment? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:122
                                                                                  • ActiveRecord::Attribute::FromDatabase#changed_in_place? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:58
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                                                                                    • ActiveModel::Type::Integer#changed_in_place? $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/value.rb:83
                                                                            • ActiveRecord::AttributeMutationTracker#block in changed_values $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_mutation_tracker.rb:8
                                                                              • ActiveRecord::AttributeMutationTracker#changed? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_mutation_tracker.rb:23
                                                                                • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_mutation_tracker.rb:24
                                                                                • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                                                                • ActiveRecord::Attribute::FromUser#changed? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:54
                                                                                  • ActiveRecord::Attribute::FromUser#changed_from_assignment? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:122
                                                                                    • ActiveRecord::Attribute::FromUser#original_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:42
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                                                                                        • ActiveRecord::Attribute::FromDatabase#type_cast $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:139
                                                                                          • ActiveModel::Type::String#deserialize $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/value.rb:21
                                                                                            • ActiveModel::Type::String#cast $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/value.rb:35
                                                                                              • NilClass#nil? $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/value.rb:36
                                                                                    • ActiveRecord::Attribute::FromUser#value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:36
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                                                                              • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                                                              • ActiveRecord::Attribute::FromUser#original_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:42
                                                                                • ActiveRecord::Attribute::FromDatabase#original_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:42
                                                                                  • ActiveRecord::Attribute::FromDatabase#type_cast $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:139
                                                                                    • ActiveModel::Type::String#deserialize $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/value.rb:21
                                                                                      • ActiveModel::Type::String#cast $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/value.rb:35
                                                                                        • NilClass#nil? $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/value.rb:36
                                                                              • ActiveSupport::HashWithIndifferentAccess#[]= $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:109
                                                                                • ActiveSupport::HashWithIndifferentAccess#convert_key $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:298
                                                                                  • Kernel#kind_of? $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:299
                                                                                • ActiveSupport::HashWithIndifferentAccess#convert_value $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:302
                                                                                  • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:303
                                                                                  • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:309
                                                                                • ActiveSupport::HashWithIndifferentAccess#[]= $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:110
                                                                            • ActiveRecord::AttributeMutationTracker#block in changed_values $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_mutation_tracker.rb:8
                                                                              • ActiveRecord::AttributeMutationTracker#changed? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_mutation_tracker.rb:23
                                                                                • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_mutation_tracker.rb:24
                                                                                • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                                                                • ActiveRecord::Attribute::FromUser#changed? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:54
                                                                                  • ActiveRecord::Attribute::FromUser#changed_from_assignment? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:122
                                                                                    • ActiveRecord::Attribute::FromUser#original_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:42
                                                                                      • ActiveRecord::Attribute::FromDatabase#original_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:42
                                                                                        • ActiveRecord::Attribute::FromDatabase#type_cast $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:139
                                                                                          • ActiveModel::Type::Text#deserialize $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/value.rb:21
                                                                                            • ActiveModel::Type::Text#cast $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/value.rb:35
                                                                                              • NilClass#nil? $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/value.rb:36
                                                                                    • ActiveRecord::Attribute::FromUser#value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:36
                                                                                    • ActiveModel::Type::Text#changed? $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/value.rb:62
                                                                              • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                                                              • ActiveRecord::Attribute::FromUser#original_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:42
                                                                                • ActiveRecord::Attribute::FromDatabase#original_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:42
                                                                                  • ActiveRecord::Attribute::FromDatabase#type_cast $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:139
                                                                                    • ActiveModel::Type::Text#deserialize $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/value.rb:21
                                                                                      • ActiveModel::Type::Text#cast $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/value.rb:35
                                                                                        • NilClass#nil? $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/value.rb:36
                                                                              • ActiveSupport::HashWithIndifferentAccess#[]= $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:109
                                                                                • ActiveSupport::HashWithIndifferentAccess#convert_key $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:298
                                                                                  • Kernel#kind_of? $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:299
                                                                                • ActiveSupport::HashWithIndifferentAccess#convert_value $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:302
                                                                                  • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:303
                                                                                  • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:309
                                                                                • ActiveSupport::HashWithIndifferentAccess#[]= $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:110
                                                                            • ActiveRecord::AttributeMutationTracker#block in changed_values $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_mutation_tracker.rb:8
                                                                              • ActiveRecord::AttributeMutationTracker#changed? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_mutation_tracker.rb:23
                                                                                • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_mutation_tracker.rb:24
                                                                                • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                                                                • ActiveRecord::Attribute::FromUser#changed? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:54
                                                                                  • ActiveRecord::Attribute::FromUser#changed_from_assignment? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:122
                                                                                    • ActiveRecord::Attribute::FromUser#original_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:42
                                                                                      • ActiveRecord::Attribute::FromDatabase#original_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:42
                                                                                        • ActiveRecord::Attribute::FromDatabase#type_cast $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:139
                                                                                          • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#deserialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/time_zone_conversion.rb:7
                                                                                            • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#block in delegating_block /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/delegate.rb:339
                                                                                              • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#block in delegating_block /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/delegate.rb:339
                                                                                                • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#__getobj__ /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/delegate.rb:384
                                                                                                • ActiveRecord::Type::DateTime#deserialize $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/value.rb:21
                                                                                                  • ActiveRecord::Type::DateTime#block in initialize $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/helpers/accepts_multiparameter_time.rb:6
                                                                                                    • ActiveRecord::Type::DateTime#block in initialize $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/helpers/accepts_multiparameter_time.rb:6
                                                                                                      • Kernel#is_a? $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/helpers/accepts_multiparameter_time.rb:7
                                                                                                      • ActiveRecord::Type::DateTime#cast $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/value.rb:35
                                                                                                        • NilClass#nil? $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/value.rb:36
                                                                                            • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#convert_time_to_time_zone $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/time_zone_conversion.rb:29
                                                                                              • NilClass#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/time_zone_conversion.rb:30
                                                                                    • ActiveRecord::Attribute::FromUser#value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:36
                                                                                      • ActiveRecord::Attribute::FromUser#type_cast $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:149
                                                                                        • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#cast $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/time_zone_conversion.rb:11
                                                                                          • Kernel#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/time_zone_conversion.rb:12
                                                                                          • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter.const_missing /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/delegate.rb:56
                                                                                            • Module#const_get /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/delegate.rb:57
                                                                                          • Kernel#is_a? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/time_zone_conversion.rb:14
                                                                                          • Kernel#respond_to? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/time_zone_conversion.rb:16
                                                                                          • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#method_missing /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/delegate.rb:78
                                                                                            • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#__getobj__ /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/delegate.rb:384
                                                                                            • Kernel#respond_to? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/delegate.rb:82
                                                                                            • ActiveRecord::Type::DateTime#user_input_in_time_zone $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/helpers/time_value.rb:44
                                                                                              • Time.zone $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/zones.rb:12
                                                                                                • #<Class:Thread>#current $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/zones.rb:13
                                                                                                • Thread#[] $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/zones.rb:13
                                                                                              • Time#in_time_zone $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/date_and_time/zones.rb:18
                                                                                                • Time.find_zone! $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/zones.rb:80
                                                                                                  • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/zones.rb:81
                                                                                                • Time#acts_like? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/acts_like.rb:7
                                                                                                  • Symbol#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/acts_like.rb:8
                                                                                                  • String#intern $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/acts_like.rb:8
                                                                                                  • Kernel#respond_to? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/acts_like.rb:8
                                                                                                • Time#time_with_zone $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/date_and_time/zones.rb:31
                                                                                                  • Time#utc? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/date_and_time/zones.rb:33
                                                                                                  • Class#new $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/date_and_time/zones.rb:33
                                                                                                    • ActiveSupport::TimeWithZone#initialize $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:51
                                                                                                      • ActiveSupport::TimeWithZone#transfer_time_values_to_utc_constructor $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:481
                                                                                                        • Time#year $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:482
                                                                                                        • Time#month $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:482
                                                                                                        • Time#day $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:482
                                                                                                        • Time#hour $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:482
                                                                                                        • Time#min $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:482
                                                                                                        • Time#sec $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:482
                                                                                                        • Time#subsec $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:482
                                                                                                          • Numeric#quo $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:482
                                                                                                            • Integer#to_r $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:482
                                                                                                              • Integer#div $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:482
                                                                                                              • Integer#div $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:482
                                                                                                        • Integer#+ $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:482
                                                                                                          • Rational#coerce $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:482
                                                                                                          • Rational#+ $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:482
                                                                                                        • #<Class:Time>#utc $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:482
                                                                                                          • Numeric#divmod $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:482
                                                                                                            • Numeric#div $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:482
                                                                                                              • Integer#== $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:482
                                                                                                              • Rational#/ $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:482
                                                                                                              • Rational#floor $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:482
                                                                                                            • Integer#* $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:482
                                                                                                            • Rational#- $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:482
                                                                                                            • Integer#== $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:482
                                                                                                            • Rational#/ $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:482
                                                                                                            • Rational#floor $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:482
                                                                                                          • Rational#* $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:482
                                                                                                          • Integer#+ $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:482
                                                                                                          • Integer#+ $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:482
                                                                                                          • Integer#<=> $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:482
                                                                                                          • Integer#+ $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:482
                                                                                                          • Integer#<=> $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:482
                                                                                                          • Integer#<=> $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:482
                                                                                          • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#block in delegating_block /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/delegate.rb:339
                                                                                            • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#block in delegating_block /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/delegate.rb:339
                                                                                              • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#__getobj__ /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/delegate.rb:384
                                                                                              • ActiveRecord::Type::DateTime#block in initialize $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/helpers/accepts_multiparameter_time.rb:6
                                                                                                • ActiveRecord::Type::DateTime#block in initialize $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/helpers/accepts_multiparameter_time.rb:6
                                                                                                  • ActiveSupport::TimeWithZone#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:420
                                                                                                    • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:421
                                                                                                  • ActiveRecord::Type::DateTime#cast $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/value.rb:35
                                                                                                    • Kernel#nil? $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/value.rb:36
                                                                                                    • ActiveRecord::Type::DateTime#cast_value $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/date_time.rb:15
                                                                                                      • ActiveSupport::TimeWithZone#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:420
                                                                                                        • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:421
                                                                                                      • ActiveRecord::Type::DateTime#apply_seconds_precision $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/helpers/time_value.rb:33
                                                                                    • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#block in delegating_block /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/delegate.rb:339
                                                                                      • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#block in delegating_block /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/delegate.rb:339
                                                                                        • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#__getobj__ /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/delegate.rb:384
                                                                                        • ActiveRecord::Type::DateTime#changed? $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/value.rb:62
                                                                              • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                                                              • ActiveRecord::Attribute::FromUser#original_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:42
                                                                                • ActiveRecord::Attribute::FromDatabase#original_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:42
                                                                                  • ActiveRecord::Attribute::FromDatabase#type_cast $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:139
                                                                                    • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#deserialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/time_zone_conversion.rb:7
                                                                                      • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#block in delegating_block /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/delegate.rb:339
                                                                                        • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#block in delegating_block /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/delegate.rb:339
                                                                                          • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#__getobj__ /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/delegate.rb:384
                                                                                          • ActiveRecord::Type::DateTime#deserialize $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/value.rb:21
                                                                                            • ActiveRecord::Type::DateTime#block in initialize $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/helpers/accepts_multiparameter_time.rb:6
                                                                                              • ActiveRecord::Type::DateTime#block in initialize $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/helpers/accepts_multiparameter_time.rb:6
                                                                                                • Kernel#is_a? $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/helpers/accepts_multiparameter_time.rb:7
                                                                                                • ActiveRecord::Type::DateTime#cast $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/value.rb:35
                                                                                                  • NilClass#nil? $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/value.rb:36
                                                                                      • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#convert_time_to_time_zone $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/time_zone_conversion.rb:29
                                                                                        • NilClass#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/time_zone_conversion.rb:30
                                                                              • ActiveSupport::HashWithIndifferentAccess#[]= $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:109
                                                                                • ActiveSupport::HashWithIndifferentAccess#convert_key $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:298
                                                                                  • Kernel#kind_of? $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:299
                                                                                • ActiveSupport::HashWithIndifferentAccess#convert_value $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:302
                                                                                  • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:303
                                                                                  • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:309
                                                                                • ActiveSupport::HashWithIndifferentAccess#[]= $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:110
                                                                            • ActiveRecord::AttributeMutationTracker#block in changed_values $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_mutation_tracker.rb:8
                                                                              • ActiveRecord::AttributeMutationTracker#changed? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_mutation_tracker.rb:23
                                                                                • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_mutation_tracker.rb:24
                                                                                • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                                                                • ActiveRecord::Attribute::FromUser#changed? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:54
                                                                                  • ActiveRecord::Attribute::FromUser#changed_from_assignment? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:122
                                                                                    • ActiveRecord::Attribute::FromUser#original_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:42
                                                                                      • ActiveRecord::Attribute::FromDatabase#original_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:42
                                                                                        • ActiveRecord::Attribute::FromDatabase#type_cast $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:139
                                                                                          • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#deserialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/time_zone_conversion.rb:7
                                                                                            • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#block in delegating_block /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/delegate.rb:339
                                                                                              • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#block in delegating_block /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/delegate.rb:339
                                                                                                • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#__getobj__ /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/delegate.rb:384
                                                                                                • ActiveRecord::Type::DateTime#deserialize $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/value.rb:21
                                                                                                  • ActiveRecord::Type::DateTime#block in initialize $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/helpers/accepts_multiparameter_time.rb:6
                                                                                                    • ActiveRecord::Type::DateTime#block in initialize $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/helpers/accepts_multiparameter_time.rb:6
                                                                                                      • Kernel#is_a? $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/helpers/accepts_multiparameter_time.rb:7
                                                                                                      • ActiveRecord::Type::DateTime#cast $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/value.rb:35
                                                                                                        • NilClass#nil? $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/value.rb:36
                                                                                            • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#convert_time_to_time_zone $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/time_zone_conversion.rb:29
                                                                                              • NilClass#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/time_zone_conversion.rb:30
                                                                                    • ActiveRecord::Attribute::FromUser#value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:36
                                                                                      • ActiveRecord::Attribute::FromUser#type_cast $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:149
                                                                                        • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#cast $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/time_zone_conversion.rb:11
                                                                                          • Kernel#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/time_zone_conversion.rb:12
                                                                                          • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter.const_missing /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/delegate.rb:56
                                                                                            • Module#const_get /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/delegate.rb:57
                                                                                          • Kernel#is_a? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/time_zone_conversion.rb:14
                                                                                          • Kernel#respond_to? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/time_zone_conversion.rb:16
                                                                                          • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#method_missing /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/delegate.rb:78
                                                                                            • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#__getobj__ /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/delegate.rb:384
                                                                                            • Kernel#respond_to? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/delegate.rb:82
                                                                                            • ActiveRecord::Type::DateTime#user_input_in_time_zone $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/helpers/time_value.rb:44
                                                                                              • Time.zone $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/zones.rb:12
                                                                                                • #<Class:Thread>#current $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/zones.rb:13
                                                                                                • Thread#[] $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/zones.rb:13
                                                                                              • Time#in_time_zone $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/date_and_time/zones.rb:18
                                                                                                • Time.find_zone! $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/zones.rb:80
                                                                                                  • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/zones.rb:81
                                                                                                • Time#acts_like? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/acts_like.rb:7
                                                                                                  • Symbol#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/acts_like.rb:8
                                                                                                  • String#intern $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/acts_like.rb:8
                                                                                                  • Kernel#respond_to? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/acts_like.rb:8
                                                                                                • Time#time_with_zone $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/date_and_time/zones.rb:31
                                                                                                  • Time#utc? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/date_and_time/zones.rb:33
                                                                                                  • Class#new $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/date_and_time/zones.rb:33
                                                                                                    • ActiveSupport::TimeWithZone#initialize $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:51
                                                                                                      • ActiveSupport::TimeWithZone#transfer_time_values_to_utc_constructor $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:481
                                                                                                        • Time#year $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:482
                                                                                                        • Time#month $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:482
                                                                                                        • Time#day $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:482
                                                                                                        • Time#hour $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:482
                                                                                                        • Time#min $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:482
                                                                                                        • Time#sec $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:482
                                                                                                        • Time#subsec $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:482
                                                                                                          • Numeric#quo $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:482
                                                                                                            • Integer#to_r $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:482
                                                                                                              • Integer#div $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:482
                                                                                                              • Integer#div $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:482
                                                                                                        • Integer#+ $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:482
                                                                                                          • Rational#coerce $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:482
                                                                                                          • Rational#+ $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:482
                                                                                                        • #<Class:Time>#utc $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:482
                                                                                                          • Numeric#divmod $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:482
                                                                                                            • Numeric#div $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:482
                                                                                                              • Integer#== $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:482
                                                                                                              • Rational#/ $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:482
                                                                                                              • Rational#floor $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:482
                                                                                                            • Integer#* $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:482
                                                                                                            • Rational#- $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:482
                                                                                                            • Integer#== $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:482
                                                                                                            • Rational#/ $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:482
                                                                                                            • Rational#floor $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:482
                                                                                                          • Rational#* $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:482
                                                                                                          • Integer#+ $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:482
                                                                                                          • Integer#+ $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:482
                                                                                                          • Integer#<=> $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:482
                                                                                                          • Integer#+ $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:482
                                                                                                          • Integer#<=> $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:482
                                                                                                          • Integer#<=> $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:482
                                                                                          • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#block in delegating_block /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/delegate.rb:339
                                                                                            • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#block in delegating_block /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/delegate.rb:339
                                                                                              • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#__getobj__ /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/delegate.rb:384
                                                                                              • ActiveRecord::Type::DateTime#block in initialize $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/helpers/accepts_multiparameter_time.rb:6
                                                                                                • ActiveRecord::Type::DateTime#block in initialize $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/helpers/accepts_multiparameter_time.rb:6
                                                                                                  • ActiveSupport::TimeWithZone#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:420
                                                                                                    • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:421
                                                                                                  • ActiveRecord::Type::DateTime#cast $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/value.rb:35
                                                                                                    • Kernel#nil? $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/value.rb:36
                                                                                                    • ActiveRecord::Type::DateTime#cast_value $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/date_time.rb:15
                                                                                                      • ActiveSupport::TimeWithZone#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:420
                                                                                                        • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:421
                                                                                                      • ActiveRecord::Type::DateTime#apply_seconds_precision $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/helpers/time_value.rb:33
                                                                                    • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#block in delegating_block /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/delegate.rb:339
                                                                                      • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#block in delegating_block /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/delegate.rb:339
                                                                                        • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#__getobj__ /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/delegate.rb:384
                                                                                        • ActiveRecord::Type::DateTime#changed? $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/value.rb:62
                                                                              • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                                                              • ActiveRecord::Attribute::FromUser#original_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:42
                                                                                • ActiveRecord::Attribute::FromDatabase#original_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:42
                                                                                  • ActiveRecord::Attribute::FromDatabase#type_cast $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:139
                                                                                    • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#deserialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/time_zone_conversion.rb:7
                                                                                      • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#block in delegating_block /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/delegate.rb:339
                                                                                        • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#block in delegating_block /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/delegate.rb:339
                                                                                          • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#__getobj__ /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/delegate.rb:384
                                                                                          • ActiveRecord::Type::DateTime#deserialize $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/value.rb:21
                                                                                            • ActiveRecord::Type::DateTime#block in initialize $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/helpers/accepts_multiparameter_time.rb:6
                                                                                              • ActiveRecord::Type::DateTime#block in initialize $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/helpers/accepts_multiparameter_time.rb:6
                                                                                                • Kernel#is_a? $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/helpers/accepts_multiparameter_time.rb:7
                                                                                                • ActiveRecord::Type::DateTime#cast $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/value.rb:35
                                                                                                  • NilClass#nil? $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/value.rb:36
                                                                                      • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#convert_time_to_time_zone $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/time_zone_conversion.rb:29
                                                                                        • NilClass#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/time_zone_conversion.rb:30
                                                                              • ActiveSupport::HashWithIndifferentAccess#[]= $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:109
                                                                                • ActiveSupport::HashWithIndifferentAccess#convert_key $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:298
                                                                                  • Kernel#kind_of? $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:299
                                                                                • ActiveSupport::HashWithIndifferentAccess#convert_value $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:302
                                                                                  • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:303
                                                                                  • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:309
                                                                                • ActiveSupport::HashWithIndifferentAccess#[]= $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:110
                                                                      • ActiveSupport::HashWithIndifferentAccess#reverse_merge $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:235
                                                                        • Kernel#class $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:236
                                                                        • Class#new $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:236
                                                                          • ActiveSupport::HashWithIndifferentAccess#initialize $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:64
                                                                            • Kernel#respond_to? $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:65
                                                                            • Hash#initialize $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:66
                                                                            • ActiveSupport::HashWithIndifferentAccess#update $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:140
                                                                              • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:141
                                                                              • Hash#update $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:142
                                                                            • ActiveSupport::HashWithIndifferentAccess#to_hash $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:287
                                                                              • Class#new $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:288
                                                                                • Hash#initialize $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:288
                                                                              • ActiveSupport::HashWithIndifferentAccess#set_defaults $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:319
                                                                                • Hash#default_proc $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:320
                                                                                • ActiveSupport::HashWithIndifferentAccess#default $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:77
                                                                                  • Array#first $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:78
                                                                                  • ActiveSupport::HashWithIndifferentAccess#convert_key $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:298
                                                                                    • Kernel#kind_of? $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:299
                                                                                  • ActiveSupport::HashWithIndifferentAccess#key? $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:162
                                                                                    • ActiveSupport::HashWithIndifferentAccess#convert_key $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:298
                                                                                      • Kernel#kind_of? $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:299
                                                                                    • Hash#key? $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:163
                                                                                  • Hash#default $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:83
                                                                                • Hash#default= $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:323
                                                                              • Hash#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:291
                                                                                • ActiveSupport::HashWithIndifferentAccess#block in to_hash $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:291
                                                                                  • ActiveSupport::HashWithIndifferentAccess#convert_value $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:302
                                                                                    • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:303
                                                                                    • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:309
                                                                                • ActiveSupport::HashWithIndifferentAccess#block in to_hash $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:291
                                                                                  • ActiveSupport::HashWithIndifferentAccess#convert_value $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:302
                                                                                    • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:303
                                                                                    • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:309
                                                                                • ActiveSupport::HashWithIndifferentAccess#block in to_hash $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:291
                                                                                  • ActiveSupport::HashWithIndifferentAccess#convert_value $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:302
                                                                                    • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:303
                                                                                    • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:309
                                                                                • ActiveSupport::HashWithIndifferentAccess#block in to_hash $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:291
                                                                                  • ActiveSupport::HashWithIndifferentAccess#convert_value $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:302
                                                                                    • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:303
                                                                                    • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:309
                                                                            • Hash#default $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:70
                                                                            • Hash#default_proc $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:71
                                                                        • ActiveSupport::HashWithIndifferentAccess#reverse_merge $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/reverse_merge.rb:12
                                                                          • ActiveSupport::HashWithIndifferentAccess#merge $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:225
                                                                            • ActiveSupport::HashWithIndifferentAccess#dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:216
                                                                              • Kernel#class $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:217
                                                                              • Class#new $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:217
                                                                                • ActiveSupport::HashWithIndifferentAccess#initialize $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:64
                                                                                  • Kernel#respond_to? $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:65
                                                                                  • Hash#initialize $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:66
                                                                                  • ActiveSupport::HashWithIndifferentAccess#update $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:140
                                                                                    • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:141
                                                                                    • Hash#update $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:142
                                                                                  • ActiveSupport::HashWithIndifferentAccess#to_hash $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:287
                                                                                    • Class#new $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:288
                                                                                      • Hash#initialize $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:288
                                                                                    • ActiveSupport::HashWithIndifferentAccess#set_defaults $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:319
                                                                                      • Hash#default_proc $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:320
                                                                                      • ActiveSupport::HashWithIndifferentAccess#default $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:77
                                                                                        • Array#first $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:78
                                                                                        • ActiveSupport::HashWithIndifferentAccess#convert_key $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:298
                                                                                          • Kernel#kind_of? $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:299
                                                                                        • ActiveSupport::HashWithIndifferentAccess#key? $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:162
                                                                                          • ActiveSupport::HashWithIndifferentAccess#convert_key $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:298
                                                                                            • Kernel#kind_of? $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:299
                                                                                          • Hash#key? $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:163
                                                                                        • Hash#default $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:83
                                                                                      • Hash#default= $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:323
                                                                                    • Hash#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:291
                                                                                      • ActiveSupport::HashWithIndifferentAccess#block in to_hash $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:291
                                                                                        • ActiveSupport::HashWithIndifferentAccess#convert_value $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:302
                                                                                          • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:303
                                                                                          • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:309
                                                                                      • ActiveSupport::HashWithIndifferentAccess#block in to_hash $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:291
                                                                                        • ActiveSupport::HashWithIndifferentAccess#convert_value $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:302
                                                                                          • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:303
                                                                                          • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:309
                                                                                      • ActiveSupport::HashWithIndifferentAccess#block in to_hash $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:291
                                                                                        • ActiveSupport::HashWithIndifferentAccess#convert_value $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:302
                                                                                          • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:303
                                                                                          • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:309
                                                                                      • ActiveSupport::HashWithIndifferentAccess#block in to_hash $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:291
                                                                                        • ActiveSupport::HashWithIndifferentAccess#convert_value $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:302
                                                                                          • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:303
                                                                                          • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:309
                                                                                  • Hash#default $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:70
                                                                                  • Hash#default_proc $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:71
                                                                              • Kernel#tap $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:217
                                                                                • ActiveSupport::HashWithIndifferentAccess#block in dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:217
                                                                                  • ActiveSupport::HashWithIndifferentAccess#set_defaults $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:319
                                                                                    • Hash#default_proc $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:320
                                                                                    • ActiveSupport::HashWithIndifferentAccess#default $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:77
                                                                                      • Array#first $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:78
                                                                                      • ActiveSupport::HashWithIndifferentAccess#convert_key $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:298
                                                                                        • Kernel#kind_of? $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:299
                                                                                      • ActiveSupport::HashWithIndifferentAccess#key? $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:162
                                                                                        • ActiveSupport::HashWithIndifferentAccess#convert_key $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:298
                                                                                          • Kernel#kind_of? $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:299
                                                                                        • Hash#key? $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:163
                                                                                      • Hash#default $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:83
                                                                                    • Hash#default= $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:323
                                                                            • ActiveSupport::HashWithIndifferentAccess#update $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:140
                                                                              • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:141
                                                                              • Hash#update $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:142
                                                                      • Kernel#freeze $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/dirty.rb:83
                                                                    • Hash#keys $GemPath0/gems/activemodel-5.0.2/lib/active_model/dirty.rb:146
                                                                  • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/dirty.rb:127
                                                                  • Article.column_names $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:384
                                                                  • Array#& $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/dirty.rb:127
                                                                • Article#_create_record $GemPath0/gems/activerecord-5.0.2/lib/active_record/locking/optimistic.rb:69
                                                                  • Article#locking_enabled? $GemPath0/gems/activerecord-5.0.2/lib/active_record/locking/optimistic.rb:58
                                                                    • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/locking/optimistic.rb:59
                                                                    • Article.locking_enabled? $GemPath0/gems/activerecord-5.0.2/lib/active_record/locking/optimistic.rb:141
                                                                      • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                        • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                      • Article.columns_hash $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:338
                                                                        • Article.load_schema $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:435
                                                                          • Article.schema_loaded? $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:431
                                                                      • Article.locking_column $GemPath0/gems/activerecord-5.0.2/lib/active_record/locking/optimistic.rb:152
                                                                  • Article#_create_record $GemPath0/gems/activerecord-5.0.2/lib/active_record/counter_cache.rb:127
                                                                    • Article#_create_record $GemPath0/gems/activerecord-5.0.2/lib/active_record/persistence.rb:557
                                                                      • Article#arel_attributes_with_values_for_create $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:406
                                                                        • Article#attributes_for_create $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:442
                                                                          • Array#reject $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:443
                                                                            • Article#block in attributes_for_create $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:443
                                                                              • Article#pk_attribute? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:452
                                                                                • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:453
                                                                                • Article.primary_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/primary_key.rb:72
                                                                            • Article#block in attributes_for_create $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:443
                                                                              • Article#pk_attribute? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:452
                                                                                • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:453
                                                                                • Article.primary_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/primary_key.rb:72
                                                                            • Article#block in attributes_for_create $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:443
                                                                              • Article#pk_attribute? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:452
                                                                                • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:453
                                                                                • Article.primary_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/primary_key.rb:72
                                                                            • Article#block in attributes_for_create $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:443
                                                                              • Article#pk_attribute? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:452
                                                                                • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:453
                                                                                • Article.primary_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/primary_key.rb:72
                                                                        • Article#arel_attributes_with_values $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:423
                                                                          • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:425
                                                                          • Article.arel_table $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:253
                                                                          • Array#each $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:427
                                                                            • Article#block in arel_attributes_with_values $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:427
                                                                              • Arel::Table#[] $GemPath0/gems/arel-7.1.4/lib/arel/table.rb:80
                                                                                • #<Class:#<Class:0x007f7108079740>>#new $GemPath0/gems/arel-7.1.4/lib/arel/table.rb:81
                                                                                  • Struct#initialize $GemPath0/gems/arel-7.1.4/lib/arel/table.rb:81
                                                                              • Article#typecasted_attribute_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:456
                                                                                • Article#_read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:65
                                                                                  • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:66
                                                                                  • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:43
                                                                                    • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                                                                    • ActiveRecord::Attribute::FromUser#value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:36
                                                                              • Struct#hash $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:428
                                                                                • Kernel#hash $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:428
                                                                                • Arel::Table#hash $GemPath0/gems/arel-7.1.4/lib/arel/table.rb:84
                                                                                  • String#hash $GemPath0/gems/arel-7.1.4/lib/arel/table.rb:88
                                                                                • String#hash $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:428
                                                                            • Article#block in arel_attributes_with_values $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:427
                                                                              • Arel::Table#[] $GemPath0/gems/arel-7.1.4/lib/arel/table.rb:80
                                                                                • #<Class:#<Class:0x007f7108079740>>#new $GemPath0/gems/arel-7.1.4/lib/arel/table.rb:81
                                                                                  • Struct#initialize $GemPath0/gems/arel-7.1.4/lib/arel/table.rb:81
                                                                              • Article#typecasted_attribute_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:456
                                                                                • Article#_read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:65
                                                                                  • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:66
                                                                                  • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:43
                                                                                    • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                                                                    • ActiveRecord::Attribute::FromUser#value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:36
                                                                              • Struct#hash $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:428
                                                                                • Kernel#hash $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:428
                                                                                • Arel::Table#hash $GemPath0/gems/arel-7.1.4/lib/arel/table.rb:84
                                                                                  • String#hash $GemPath0/gems/arel-7.1.4/lib/arel/table.rb:88
                                                                                • String#hash $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:428
                                                                            • Article#block in arel_attributes_with_values $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:427
                                                                              • Arel::Table#[] $GemPath0/gems/arel-7.1.4/lib/arel/table.rb:80
                                                                                • #<Class:#<Class:0x007f7108079740>>#new $GemPath0/gems/arel-7.1.4/lib/arel/table.rb:81
                                                                                  • Struct#initialize $GemPath0/gems/arel-7.1.4/lib/arel/table.rb:81
                                                                              • Article#typecasted_attribute_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:456
                                                                                • Article#_read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:65
                                                                                  • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:66
                                                                                  • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:43
                                                                                    • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                                                                    • ActiveRecord::Attribute::FromUser#value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:36
                                                                              • Struct#hash $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:428
                                                                                • Kernel#hash $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:428
                                                                                • Arel::Table#hash $GemPath0/gems/arel-7.1.4/lib/arel/table.rb:84
                                                                                  • String#hash $GemPath0/gems/arel-7.1.4/lib/arel/table.rb:88
                                                                                • String#hash $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:428
                                                                            • Article#block in arel_attributes_with_values $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:427
                                                                              • Arel::Table#[] $GemPath0/gems/arel-7.1.4/lib/arel/table.rb:80
                                                                                • #<Class:#<Class:0x007f7108079740>>#new $GemPath0/gems/arel-7.1.4/lib/arel/table.rb:81
                                                                                  • Struct#initialize $GemPath0/gems/arel-7.1.4/lib/arel/table.rb:81
                                                                              • Article#typecasted_attribute_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:456
                                                                                • Article#_read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:65
                                                                                  • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:66
                                                                                  • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:43
                                                                                    • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                                                                    • ActiveRecord::Attribute::FromUser#value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:36
                                                                              • Struct#hash $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:428
                                                                                • Kernel#hash $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:428
                                                                                • Arel::Table#hash $GemPath0/gems/arel-7.1.4/lib/arel/table.rb:84
                                                                                  • String#hash $GemPath0/gems/arel-7.1.4/lib/arel/table.rb:88
                                                                                • String#hash $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:428
                                                                      • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/persistence.rb:560
                                                                      • Article.unscoped $GemPath0/gems/activerecord-5.0.2/lib/active_record/scoping/default.rb:34
                                                                        • Kernel#block_given? $GemPath0/gems/activerecord-5.0.2/lib/active_record/scoping/default.rb:35
                                                                        • Article.relation $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:289
                                                                          • Article.arel_table $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:253
                                                                          • Article.predicate_builder $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:272
                                                                          • ActiveRecord::Relation.create $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:100
                                                                            • ActiveRecord::Relation.relation_class_for $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:106
                                                                              • Article.relation_delegate_class $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:6
                                                                                • Kernel#hash $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:7
                                                                            • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:101
                                                                              • Article::ActiveRecord_Relation#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:24
                                                                          • Article.finder_needs_type_condition? $GemPath0/gems/activerecord-5.0.2/lib/active_record/inheritance.rb:81
                                                                      • Article::ActiveRecord_Relation#insert $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:40
                                                                        • Article::ActiveRecord_Relation#primary_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:43
                                                                          • Article.primary_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/primary_key.rb:72
                                                                        • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:43
                                                                        • Hash#keys $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:44
                                                                        • Enumerable#find $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:44
                                                                          • Array#each $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:44
                                                                            • Article::ActiveRecord_Relation#block in insert $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:44
                                                                              • #<Class:0x007f7108079740>#name $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:45
                                                                              • Article::ActiveRecord_Relation#primary_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:43
                                                                                • Article.primary_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/primary_key.rb:72
                                                                            • Article::ActiveRecord_Relation#block in insert $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:44
                                                                              • #<Class:0x007f7108079740>#name $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:45
                                                                              • Article::ActiveRecord_Relation#primary_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:43
                                                                                • Article.primary_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/primary_key.rb:72
                                                                            • Article::ActiveRecord_Relation#block in insert $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:44
                                                                              • #<Class:0x007f7108079740>#name $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:45
                                                                              • Article::ActiveRecord_Relation#primary_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:43
                                                                                • Article.primary_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/primary_key.rb:72
                                                                            • Article::ActiveRecord_Relation#block in insert $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:44
                                                                              • #<Class:0x007f7108079740>#name $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:45
                                                                              • Article::ActiveRecord_Relation#primary_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:43
                                                                                • Article.primary_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/primary_key.rb:72
                                                                        • Article.prefetch_primary_key? $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:315
                                                                          • Article.connection $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:90
                                                                            • Article.retrieve_connection $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:127
                                                                              • Article.connection_handler $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:121
                                                                                • ActiveRecord::RuntimeRegistry.connection_handler $GemPath0/gems/activerecord-5.0.2/lib/active_record/runtime_registry.rb:18
                                                                                  • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:44
                                                                                    • #<Class:Thread>#current $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:45
                                                                                    • Thread#[] $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:45
                                                                                • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                  • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                              • Article.connection_specification_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:98
                                                                                • Class#superclass $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:100
                                                                                • ApplicationRecord.connection_specification_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:98
                                                                                  • Class#superclass $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:100
                                                                                  • ActiveRecord::Base.connection_specification_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:98
                                                                                    • Kernel#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:99
                                                                              • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:880
                                                                                • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection_pool $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:916
                                                                                  • ActiveRecord::ConnectionAdapters::ConnectionHandler#owner_to_pool $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:933
                                                                                    • #<Class:Process>#pid $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:934
                                                                                    • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/map.rb:92
                                                                                      • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/collection/map/non_concurrent_map_backend.rb:19
                                                                                  • Concurrent::Map#fetch $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/map.rb:118
                                                                                    • Concurrent::Map#get_or_default $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/collection/map/non_concurrent_map_backend.rb:109
                                                                                      • Hash#fetch $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/collection/map/non_concurrent_map_backend.rb:110
                                                                                • ActiveRecord::ConnectionAdapters::ConnectionPool#connection $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:363
                                                                                  • #<Class:Thread>#current $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:364
                                                                                  • ActiveRecord::ConnectionAdapters::ConnectionPool#connection_cache_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:585
                                                                                  • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/map.rb:92
                                                                                    • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/collection/map/non_concurrent_map_backend.rb:19
                                                                                      • Kernel#hash $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/collection/map/non_concurrent_map_backend.rb:20
                                                                          • Article.table_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:213
                                                                          • ActiveRecord::ConnectionAdapters::SQLite3Adapter#prefetch_primary_key? $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract_adapter.rb:260
                                                                        • Article::ActiveRecord_Relation#arel $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:948
                                                                          • Article::ActiveRecord_Relation#build_arel $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:959
                                                                            • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:960
                                                                              • Arel::SelectManager#initialize $GemPath0/gems/arel-7.1.4/lib/arel/select_manager.rb:9
                                                                                • Arel::SelectManager#initialize $GemPath0/gems/arel-7.1.4/lib/arel/tree_manager.rb:11
                                                                                • Class#new $GemPath0/gems/arel-7.1.4/lib/arel/select_manager.rb:11
                                                                                  • Class#new $GemPath0/gems/arel-7.1.4/lib/arel/nodes/select_statement.rb:7
                                                                                    • Arel::Nodes::SelectCore#initialize $GemPath0/gems/arel-7.1.4/lib/arel/nodes/select_core.rb:7
                                                                                      • BasicObject#initialize $GemPath0/gems/arel-7.1.4/lib/arel/nodes/select_core.rb:8
                                                                                      • Class#new $GemPath0/gems/arel-7.1.4/lib/arel/nodes/select_core.rb:9
                                                                                        • Arel::Nodes::JoinSource#initialize $GemPath0/gems/arel-7.1.4/lib/arel/nodes/join_source.rb:9
                                                                                          • Arel::Nodes::JoinSource#initialize $GemPath0/gems/arel-7.1.4/lib/arel/nodes/binary.rb:6
                                                                                            • BasicObject#initialize $GemPath0/gems/arel-7.1.4/lib/arel/nodes/binary.rb:7
                                                                                  • Arel::Nodes::SelectStatement#initialize $GemPath0/gems/arel-7.1.4/lib/arel/nodes/select_statement.rb:7
                                                                                    • BasicObject#initialize $GemPath0/gems/arel-7.1.4/lib/arel/nodes/select_statement.rb:8
                                                                                • Array#last $GemPath0/gems/arel-7.1.4/lib/arel/select_manager.rb:12
                                                                                • Arel::SelectManager#from $GemPath0/gems/arel-7.1.4/lib/arel/select_manager.rb:87
                                                                                  • Module#=== $GemPath0/gems/arel-7.1.4/lib/arel/select_manager.rb:88
                                                                                  • Module#=== $GemPath0/gems/arel-7.1.4/lib/arel/select_manager.rb:91
                                                                            • Article::ActiveRecord_Relation#joins_values $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:60
                                                                            • Article::ActiveRecord_Relation#left_outer_joins_values $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:60
                                                                            • Article::ActiveRecord_Relation#where_clause $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:90
                                                                              • Article::ActiveRecord_Relation#new_where_clause $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:1224
                                                                                • ActiveRecord::Relation::WhereClause.empty $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/where_clause.rb:83
                                                                            • ActiveRecord::Relation::WhereClause#empty? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/where_clause.rb:6
                                                                              • Array#empty? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/where_clause.rb:6
                                                                            • Article::ActiveRecord_Relation#having_clause $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:90
                                                                              • Article::ActiveRecord_Relation#new_where_clause $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:1224
                                                                                • ActiveRecord::Relation::WhereClause.empty $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/where_clause.rb:83
                                                                            • ActiveRecord::Relation::WhereClause#empty? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/where_clause.rb:6
                                                                              • Array#empty? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/where_clause.rb:6
                                                                            • Article::ActiveRecord_Relation#limit_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:73
                                                                            • Article::ActiveRecord_Relation#offset_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:73
                                                                            • Article::ActiveRecord_Relation#group_values $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:60
                                                                            • Article::ActiveRecord_Relation#build_order $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:1150
                                                                              • Article::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:60
                                                                              • Array#uniq $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:1151
                                                                              • Array#reject! $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:1152
                                                                            • Article::ActiveRecord_Relation#build_select $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:1096
                                                                              • Article::ActiveRecord_Relation#select_values $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:60
                                                                              • Array#any? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:1097
                                                                              • Article.arel_table $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:253
                                                                              • Arel.star $GemPath0/gems/arel-7.1.4/lib/arel.rb:30
                                                                                • Arel.sql $GemPath0/gems/arel-7.1.4/lib/arel.rb:26
                                                                                  • Class#new $GemPath0/gems/arel-7.1.4/lib/arel.rb:27
                                                                                    • String#initialize $GemPath0/gems/arel-7.1.4/lib/arel.rb:27
                                                                              • Arel::Table#[] $GemPath0/gems/arel-7.1.4/lib/arel/table.rb:80
                                                                                • #<Class:#<Class:0x007f7108079740>>#new $GemPath0/gems/arel-7.1.4/lib/arel/table.rb:81
                                                                                  • Struct#initialize $GemPath0/gems/arel-7.1.4/lib/arel/table.rb:81
                                                                              • Arel::SelectManager#project $GemPath0/gems/arel-7.1.4/lib/arel/select_manager.rb:132
                                                                                • Array#map $GemPath0/gems/arel-7.1.4/lib/arel/select_manager.rb:135
                                                                                  • Arel::SelectManager#block in project $GemPath0/gems/arel-7.1.4/lib/arel/select_manager.rb:135
                                                                                    • Kernel#class $GemPath0/gems/arel-7.1.4/lib/arel/select_manager.rb:136
                                                                                    • Array#include? $GemPath0/gems/arel-7.1.4/lib/arel/select_manager.rb:136
                                                                                • Array#concat $GemPath0/gems/arel-7.1.4/lib/arel/select_manager.rb:135
                                                                            • Article::ActiveRecord_Relation#distinct_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:73
                                                                            • Arel::SelectManager#distinct $GemPath0/gems/arel-7.1.4/lib/arel/select_manager.rb:149
                                                                            • Article::ActiveRecord_Relation#from_clause $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:90
                                                                              • Article::ActiveRecord_Relation#new_from_clause $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:1234
                                                                                • ActiveRecord::Relation::FromClause.empty $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/from_clause.rb:27
                                                                            • ActiveRecord::Relation::FromClause#empty? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/from_clause.rb:23
                                                                              • NilClass#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/from_clause.rb:24
                                                                            • Article::ActiveRecord_Relation#lock_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:73
                                                                        • Arel::SelectManager#create_insert $GemPath0/gems/arel-7.1.4/lib/arel/crud.rb:28
                                                                          • Class#new $GemPath0/gems/arel-7.1.4/lib/arel/crud.rb:29
                                                                            • Arel::InsertManager#initialize $GemPath0/gems/arel-7.1.4/lib/arel/insert_manager.rb:3
                                                                              • Arel::InsertManager#initialize $GemPath0/gems/arel-7.1.4/lib/arel/tree_manager.rb:11
                                                                              • Class#new $GemPath0/gems/arel-7.1.4/lib/arel/insert_manager.rb:5
                                                                                • Arel::Nodes::InsertStatement#initialize $GemPath0/gems/arel-7.1.4/lib/arel/nodes/insert_statement.rb:6
                                                                                  • BasicObject#initialize $GemPath0/gems/arel-7.1.4/lib/arel/nodes/insert_statement.rb:7
                                                                        • Arel::InsertManager#into $GemPath0/gems/arel-7.1.4/lib/arel/insert_manager.rb:8
                                                                        • Article::ActiveRecord_Relation#substitute_values $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:96
                                                                          • Hash#each $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:100
                                                                            • Article::ActiveRecord_Relation#block in substitute_values $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:100
                                                                              • #<Class:0x007f7108079740>#name $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:101
                                                                              • #<Class:0x007f7108079740>#name $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:101
                                                                              • Article.type_for_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:364
                                                                                • Article.attribute_types $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:348
                                                                                  • Article.load_schema $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:435
                                                                                    • Article.schema_loaded? $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:431
                                                                              • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:101
                                                                                • ActiveRecord::Relation::QueryAttribute#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:29
                                                                              • Array#push $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:101
                                                                              • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:102
                                                                                • BasicObject#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:102
                                                                              • Array#push $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:102
                                                                            • Article::ActiveRecord_Relation#block in substitute_values $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:100
                                                                              • #<Class:0x007f7108079740>#name $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:101
                                                                              • #<Class:0x007f7108079740>#name $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:101
                                                                              • Article.type_for_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:364
                                                                                • Article.attribute_types $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:348
                                                                                  • Article.load_schema $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:435
                                                                                    • Article.schema_loaded? $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:431
                                                                              • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:101
                                                                                • ActiveRecord::Relation::QueryAttribute#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:29
                                                                              • Array#push $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:101
                                                                              • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:102
                                                                                • BasicObject#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:102
                                                                              • Array#push $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:102
                                                                            • Article::ActiveRecord_Relation#block in substitute_values $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:100
                                                                              • #<Class:0x007f7108079740>#name $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:101
                                                                              • #<Class:0x007f7108079740>#name $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:101
                                                                              • Article.type_for_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:364
                                                                                • Article.attribute_types $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:348
                                                                                  • Article.load_schema $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:435
                                                                                    • Article.schema_loaded? $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:431
                                                                              • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:101
                                                                                • ActiveRecord::Relation::QueryAttribute#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:29
                                                                              • Array#push $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:101
                                                                              • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:102
                                                                                • BasicObject#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:102
                                                                              • Array#push $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:102
                                                                            • Article::ActiveRecord_Relation#block in substitute_values $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:100
                                                                              • #<Class:0x007f7108079740>#name $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:101
                                                                              • #<Class:0x007f7108079740>#name $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:101
                                                                              • Article.type_for_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:364
                                                                                • Article.attribute_types $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:348
                                                                                  • Article.load_schema $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:435
                                                                                    • Article.schema_loaded? $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:431
                                                                              • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:101
                                                                                • ActiveRecord::Relation::QueryAttribute#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:29
                                                                              • Array#push $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:101
                                                                              • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:102
                                                                                • BasicObject#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:102
                                                                              • Array#push $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:102
                                                                        • Arel::InsertManager#insert $GemPath0/gems/arel-7.1.4/lib/arel/insert_manager.rb:20
                                                                          • Module#=== $GemPath0/gems/arel-7.1.4/lib/arel/insert_manager.rb:23
                                                                          • Array#each $GemPath0/gems/arel-7.1.4/lib/arel/insert_manager.rb:30
                                                                            • Arel::InsertManager#block in insert $GemPath0/gems/arel-7.1.4/lib/arel/insert_manager.rb:30
                                                                            • Arel::InsertManager#block in insert $GemPath0/gems/arel-7.1.4/lib/arel/insert_manager.rb:30
                                                                            • Arel::InsertManager#block in insert $GemPath0/gems/arel-7.1.4/lib/arel/insert_manager.rb:30
                                                                            • Arel::InsertManager#block in insert $GemPath0/gems/arel-7.1.4/lib/arel/insert_manager.rb:30
                                                                          • Arel::InsertManager#create_values $GemPath0/gems/arel-7.1.4/lib/arel/insert_manager.rb:38
                                                                            • Class#new $GemPath0/gems/arel-7.1.4/lib/arel/insert_manager.rb:39
                                                                              • Arel::Nodes::Values#initialize $GemPath0/gems/arel-7.1.4/lib/arel/nodes/values.rb:9
                                                                                • Arel::Nodes::Values#initialize $GemPath0/gems/arel-7.1.4/lib/arel/nodes/binary.rb:6
                                                                                  • BasicObject#initialize $GemPath0/gems/arel-7.1.4/lib/arel/nodes/binary.rb:7
                                                                        • Article.connection $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:90
                                                                          • Article.retrieve_connection $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:127
                                                                            • Article.connection_handler $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:121
                                                                              • ActiveRecord::RuntimeRegistry.connection_handler $GemPath0/gems/activerecord-5.0.2/lib/active_record/runtime_registry.rb:18
                                                                                • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:44
                                                                                  • #<Class:Thread>#current $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:45
                                                                                  • Thread#[] $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:45
                                                                              • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                            • Article.connection_specification_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:98
                                                                              • Class#superclass $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:100
                                                                              • ApplicationRecord.connection_specification_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:98
                                                                                • Class#superclass $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:100
                                                                                • ActiveRecord::Base.connection_specification_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:98
                                                                                  • Kernel#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:99
                                                                            • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:880
                                                                              • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection_pool $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:916
                                                                                • ActiveRecord::ConnectionAdapters::ConnectionHandler#owner_to_pool $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:933
                                                                                  • #<Class:Process>#pid $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:934
                                                                                  • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/map.rb:92
                                                                                    • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/collection/map/non_concurrent_map_backend.rb:19
                                                                                • Concurrent::Map#fetch $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/map.rb:118
                                                                                  • Concurrent::Map#get_or_default $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/collection/map/non_concurrent_map_backend.rb:109
                                                                                    • Hash#fetch $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/collection/map/non_concurrent_map_backend.rb:110
                                                                              • ActiveRecord::ConnectionAdapters::ConnectionPool#connection $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:363
                                                                                • #<Class:Thread>#current $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:364
                                                                                • ActiveRecord::ConnectionAdapters::ConnectionPool#connection_cache_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:585
                                                                                • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/map.rb:92
                                                                                  • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/collection/map/non_concurrent_map_backend.rb:19
                                                                                    • Kernel#hash $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/collection/map/non_concurrent_map_backend.rb:20
                                                                        • Article::ActiveRecord_Relation#primary_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:43
                                                                          • Article.primary_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/primary_key.rb:72
                                                                        • ActiveRecord::ConnectionAdapters::SQLite3Adapter#insert $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/query_cache.rb:15
                                                                          • ActiveRecord::ConnectionAdapters::SQLite3Adapter#insert $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/database_statements.rb:122
                                                                            • ActiveRecord::ConnectionAdapters::SQLite3Adapter#to_sql $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/database_statements.rb:10
                                                                              • Kernel#respond_to? $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/database_statements.rb:11
                                                                              • ActiveRecord::ConnectionAdapters::SQLite3Adapter#collector $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract_adapter.rb:144
                                                                                • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract_adapter.rb:146
                                                                                  • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#initialize $GemPath0/gems/arel-7.1.4/lib/arel/collectors/sql_string.rb:8
                                                                                    • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#initialize $GemPath0/gems/arel-7.1.4/lib/arel/collectors/plain_string.rb:4
                                                                              • Arel::Visitors::SQLite#accept $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/determine_if_preparable_visitor.rb:6
                                                                                • Arel::Visitors::SQLite#accept $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:6
                                                                                  • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:12
                                                                                    • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-7.1.4/lib/arel/visitors/visitor.rb:24
                                                                                    • Kernel#class $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:13
                                                                                    • Kernel#hash $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:13
                                                                                    • Arel::Visitors::SQLite#visit_Arel_Nodes_InsertStatement $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:127
                                                                                      • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-7.1.4/lib/arel/collectors/plain_string.rb:12
                                                                                      • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:12
                                                                                        • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-7.1.4/lib/arel/visitors/visitor.rb:24
                                                                                        • Kernel#class $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:13
                                                                                        • Kernel#hash $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:13
                                                                                        • Arel::Visitors::SQLite#visit_Arel_Table $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:607
                                                                                          • Arel::Visitors::SQLite#quote_table_name $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:803
                                                                                            • Module#=== $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:804
                                                                                            • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_table_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:90
                                                                                              • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/sqlite3/quoting.rb:13
                                                                                          • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-7.1.4/lib/arel/collectors/plain_string.rb:12
                                                                                      • Array#any? $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:130
                                                                                      • Array#map $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:131
                                                                                        • Arel::Visitors::SQLite#block in visit_Arel_Nodes_InsertStatement $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:131
                                                                                          • #<Class:0x007f7108079740>#name $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:132
                                                                                          • Arel::Visitors::SQLite#quote_column_name $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:808
                                                                                            • Module#=== $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:809
                                                                                            • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/sqlite3/quoting.rb:13
                                                                                        • Arel::Visitors::SQLite#block in visit_Arel_Nodes_InsertStatement $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:131
                                                                                          • #<Class:0x007f7108079740>#name $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:132
                                                                                          • Arel::Visitors::SQLite#quote_column_name $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:808
                                                                                            • Module#=== $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:809
                                                                                            • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/sqlite3/quoting.rb:13
                                                                                        • Arel::Visitors::SQLite#block in visit_Arel_Nodes_InsertStatement $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:131
                                                                                          • #<Class:0x007f7108079740>#name $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:132
                                                                                          • Arel::Visitors::SQLite#quote_column_name $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:808
                                                                                            • Module#=== $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:809
                                                                                            • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/sqlite3/quoting.rb:13
                                                                                        • Arel::Visitors::SQLite#block in visit_Arel_Nodes_InsertStatement $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:131
                                                                                          • #<Class:0x007f7108079740>#name $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:132
                                                                                          • Arel::Visitors::SQLite#quote_column_name $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:808
                                                                                            • Module#=== $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:809
                                                                                            • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/sqlite3/quoting.rb:13
                                                                                      • Array#join $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:131
                                                                                      • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-7.1.4/lib/arel/collectors/plain_string.rb:12
                                                                                      • Arel::Visitors::SQLite#maybe_visit $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:813
                                                                                        • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-7.1.4/lib/arel/collectors/plain_string.rb:12
                                                                                        • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:12
                                                                                          • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-7.1.4/lib/arel/visitors/visitor.rb:24
                                                                                          • Kernel#class $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:13
                                                                                          • Kernel#hash $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:13
                                                                                          • Arel::Visitors::SQLite#visit_Arel_Nodes_Values $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:190
                                                                                            • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-7.1.4/lib/arel/collectors/plain_string.rb:12
                                                                                            • Array#zip $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:194
                                                                                            • Enumerable#each_with_index $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:194
                                                                                              • Array#each $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:194
                                                                                                • Arel::Visitors::SQLite#block in visit_Arel_Nodes_Values $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:194
                                                                                                  • Module#=== $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:196
                                                                                                  • Module#=== $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:196
                                                                                                  • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:12
                                                                                                    • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-7.1.4/lib/arel/visitors/visitor.rb:24
                                                                                                    • Kernel#class $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:13
                                                                                                    • Kernel#hash $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:13
                                                                                                    • Arel::Visitors::SQLite#visit_Arel_Nodes_BindParam $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:738
                                                                                                      • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#add_bind $GemPath0/gems/arel-7.1.4/lib/arel/collectors/sql_string.rb:13
                                                                                                        • Arel::Visitors::SQLite#block in visit_Arel_Nodes_BindParam $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:739
                                                                                                        • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-7.1.4/lib/arel/collectors/plain_string.rb:12
                                                                                                  • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-7.1.4/lib/arel/collectors/plain_string.rb:12
                                                                                                • Arel::Visitors::SQLite#block in visit_Arel_Nodes_Values $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:194
                                                                                                  • Module#=== $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:196
                                                                                                  • Module#=== $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:196
                                                                                                  • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:12
                                                                                                    • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-7.1.4/lib/arel/visitors/visitor.rb:24
                                                                                                    • Kernel#class $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:13
                                                                                                    • Kernel#hash $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:13
                                                                                                    • Arel::Visitors::SQLite#visit_Arel_Nodes_BindParam $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:738
                                                                                                      • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#add_bind $GemPath0/gems/arel-7.1.4/lib/arel/collectors/sql_string.rb:13
                                                                                                        • Arel::Visitors::SQLite#block in visit_Arel_Nodes_BindParam $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:739
                                                                                                        • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-7.1.4/lib/arel/collectors/plain_string.rb:12
                                                                                                  • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-7.1.4/lib/arel/collectors/plain_string.rb:12
                                                                                                • Arel::Visitors::SQLite#block in visit_Arel_Nodes_Values $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:194
                                                                                                  • Module#=== $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:196
                                                                                                  • Module#=== $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:196
                                                                                                  • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:12
                                                                                                    • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-7.1.4/lib/arel/visitors/visitor.rb:24
                                                                                                    • Kernel#class $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:13
                                                                                                    • Kernel#hash $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:13
                                                                                                    • Arel::Visitors::SQLite#visit_Arel_Nodes_BindParam $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:738
                                                                                                      • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#add_bind $GemPath0/gems/arel-7.1.4/lib/arel/collectors/sql_string.rb:13
                                                                                                        • Arel::Visitors::SQLite#block in visit_Arel_Nodes_BindParam $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:739
                                                                                                        • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-7.1.4/lib/arel/collectors/plain_string.rb:12
                                                                                                  • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-7.1.4/lib/arel/collectors/plain_string.rb:12
                                                                                                • Arel::Visitors::SQLite#block in visit_Arel_Nodes_Values $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:194
                                                                                                  • Module#=== $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:196
                                                                                                  • Module#=== $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:196
                                                                                                  • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:12
                                                                                                    • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-7.1.4/lib/arel/visitors/visitor.rb:24
                                                                                                    • Kernel#class $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:13
                                                                                                    • Kernel#hash $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:13
                                                                                                    • Arel::Visitors::SQLite#visit_Arel_Nodes_BindParam $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:738
                                                                                                      • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#add_bind $GemPath0/gems/arel-7.1.4/lib/arel/collectors/sql_string.rb:13
                                                                                                        • Arel::Visitors::SQLite#block in visit_Arel_Nodes_BindParam $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:739
                                                                                                        • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-7.1.4/lib/arel/collectors/plain_string.rb:12
                                                                                            • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-7.1.4/lib/arel/collectors/plain_string.rb:12
                                                                              • Kernel#dup $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/database_statements.rb:13
                                                                                • Kernel#initialize_dup $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/database_statements.rb:13
                                                                                  • Array#initialize_copy $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/database_statements.rb:13
                                                                              • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#compile $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract_adapter.rb:139
                                                                                • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#compile $GemPath0/gems/arel-7.1.4/lib/arel/collectors/sql_string.rb:19
                                                                                  • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#value $GemPath0/gems/arel-7.1.4/lib/arel/collectors/plain_string.rb:8
                                                                            • ActiveRecord::ConnectionAdapters::SQLite3Adapter#sql_for_insert $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/database_statements.rb:380
                                                                            • ActiveRecord::ConnectionAdapters::SQLite3Adapter#exec_insert $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/database_statements.rb:91
                                                                              • ActiveRecord::ConnectionAdapters::SQLite3Adapter#exec_query $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/sqlite3_adapter.rb:190
                                                                                • Array#map $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/sqlite3_adapter.rb:191
                                                                                  • ActiveRecord::ConnectionAdapters::SQLite3Adapter#block in exec_query $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/sqlite3_adapter.rb:191
                                                                                    • ActiveRecord::Relation::QueryAttribute#value_for_database $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_attribute.rb:10
                                                                                      • ActiveRecord::Relation::QueryAttribute#value_for_database $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:50
                                                                                        • ActiveRecord::Relation::QueryAttribute#value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:36
                                                                                          • ActiveRecord::Relation::QueryAttribute#type_cast $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_attribute.rb:6
                                                                                        • ActiveModel::Type::String#serialize $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/immutable_string.rb:8
                                                                                          • Module#=== $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/immutable_string.rb:10
                                                                                          • ActiveSupport::Duration.=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/duration.rb:102
                                                                                            • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/duration.rb:103
                                                                                          • TrueClass#=== $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/immutable_string.rb:11
                                                                                            • BasicObject#== $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/immutable_string.rb:11
                                                                                          • FalseClass#=== $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/immutable_string.rb:12
                                                                                            • BasicObject#== $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/immutable_string.rb:12
                                                                                          • ActiveModel::Type::String#serialize $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/value.rb:43
                                                                                    • ActiveRecord::ConnectionAdapters::SQLite3Adapter#type_cast $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:29
                                                                                      • Kernel#respond_to? $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:30
                                                                                      • ActiveRecord::ConnectionAdapters::SQLite3Adapter#_type_cast $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/sqlite3/quoting.rb:31
                                                                                        • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/sqlite3/quoting.rb:33
                                                                                        • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/sqlite3/quoting.rb:35
                                                                                        • String#encoding $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/sqlite3/quoting.rb:36
                                                                                        • ActiveRecord::ConnectionAdapters::SQLite3Adapter#_type_cast $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:182
                                                                                          • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:184
                                                                                          • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:184
                                                                                          • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:184
                                                                                          • TrueClass#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:186
                                                                                            • BasicObject#== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:186
                                                                                          • FalseClass#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:187
                                                                                            • BasicObject#== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:187
                                                                                          • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:189
                                                                                          • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:190
                                                                                          • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:191
                                                                                          • Time.=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/calculations.rb:15
                                                                                            • Module#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/calculations.rb:16
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                                                                                          • NilClass#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:192
                                                                                            • BasicObject#== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:192
                                                                                          • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:192
                                                                                          • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:192
                                                                                  • ActiveRecord::ConnectionAdapters::SQLite3Adapter#block in exec_query $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/sqlite3_adapter.rb:191
                                                                                    • ActiveRecord::Relation::QueryAttribute#value_for_database $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_attribute.rb:10
                                                                                      • ActiveRecord::Relation::QueryAttribute#value_for_database $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:50
                                                                                        • ActiveRecord::Relation::QueryAttribute#value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:36
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                                                                                          • TrueClass#=== $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/immutable_string.rb:11
                                                                                            • BasicObject#== $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/immutable_string.rb:11
                                                                                          • FalseClass#=== $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/immutable_string.rb:12
                                                                                            • BasicObject#== $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/immutable_string.rb:12
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                                                                                    • ActiveRecord::ConnectionAdapters::SQLite3Adapter#type_cast $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:29
                                                                                      • Kernel#respond_to? $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:30
                                                                                      • ActiveRecord::ConnectionAdapters::SQLite3Adapter#_type_cast $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/sqlite3/quoting.rb:31
                                                                                        • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/sqlite3/quoting.rb:33
                                                                                        • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/sqlite3/quoting.rb:35
                                                                                        • String#encoding $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/sqlite3/quoting.rb:36
                                                                                        • ActiveRecord::ConnectionAdapters::SQLite3Adapter#_type_cast $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:182
                                                                                          • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:184
                                                                                          • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:184
                                                                                          • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:184
                                                                                          • TrueClass#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:186
                                                                                            • BasicObject#== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:186
                                                                                          • FalseClass#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:187
                                                                                            • BasicObject#== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:187
                                                                                          • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:189
                                                                                          • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:190
                                                                                          • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:191
                                                                                          • Time.=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/calculations.rb:15
                                                                                            • Module#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/calculations.rb:16
                                                                                            • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/calculations.rb:16
                                                                                          • ActiveRecord::ConnectionAdapters::SQLite3Adapter#types_which_need_no_typecasting $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:160
                                                                                          • NilClass#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:192
                                                                                            • BasicObject#== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:192
                                                                                          • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:192
                                                                                          • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:192
                                                                                  • ActiveRecord::ConnectionAdapters::SQLite3Adapter#block in exec_query $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/sqlite3_adapter.rb:191
                                                                                    • ActiveRecord::Relation::QueryAttribute#value_for_database $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_attribute.rb:10
                                                                                      • ActiveRecord::Relation::QueryAttribute#value_for_database $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:50
                                                                                        • ActiveRecord::Relation::QueryAttribute#value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:36
                                                                                          • ActiveRecord::Relation::QueryAttribute#type_cast $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_attribute.rb:6
                                                                                        • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#block in delegating_block /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/delegate.rb:339
                                                                                          • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#block in delegating_block /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/delegate.rb:339
                                                                                            • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#__getobj__ /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/delegate.rb:384
                                                                                            • ActiveRecord::Type::DateTime#serialize $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/helpers/time_value.rb:7
                                                                                              • ActiveRecord::Type::DateTime#apply_seconds_precision $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/helpers/time_value.rb:33
                                                                                              • ActiveSupport::TimeWithZone#acts_like? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/acts_like.rb:7
                                                                                                • Symbol#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/acts_like.rb:8
                                                                                                • String#intern $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/acts_like.rb:8
                                                                                                • ActiveSupport::TimeWithZone#respond_to? $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:446
                                                                                                  • Symbol#to_sym $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:448
                                                                                                  • Kernel#respond_to? $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:449
                                                                                              • ActiveRecord::Type::DateTime#is_utc? $GemPath0/gems/activerecord-5.0.2/lib/active_record/type/internal/timezone.rb:5
                                                                                                • ActiveRecord::Base.default_timezone $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                                                              • ActiveSupport::TimeWithZone#respond_to? $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:446
                                                                                                • Symbol#to_sym $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:448
                                                                                                • Kernel#respond_to? $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:449
                                                                                              • ActiveSupport::TimeWithZone#utc $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:63
                                                                                    • ActiveRecord::ConnectionAdapters::SQLite3Adapter#type_cast $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:29
                                                                                      • Kernel#respond_to? $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:30
                                                                                      • ActiveRecord::ConnectionAdapters::SQLite3Adapter#_type_cast $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/sqlite3/quoting.rb:31
                                                                                        • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/sqlite3/quoting.rb:33
                                                                                        • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/sqlite3/quoting.rb:35
                                                                                        • ActiveRecord::ConnectionAdapters::SQLite3Adapter#_type_cast $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:182
                                                                                          • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:184
                                                                                          • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:184
                                                                                          • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:184
                                                                                          • TrueClass#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:186
                                                                                            • BasicObject#== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:186
                                                                                          • FalseClass#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:187
                                                                                            • BasicObject#== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:187
                                                                                          • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:189
                                                                                          • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:190
                                                                                          • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:191
                                                                                          • Time.=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/calculations.rb:15
                                                                                            • Module#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/calculations.rb:16
                                                                                          • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quoted_date $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:133
                                                                                            • Time#acts_like? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/acts_like.rb:7
                                                                                              • Symbol#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/acts_like.rb:8
                                                                                              • String#intern $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/acts_like.rb:8
                                                                                              • Kernel#respond_to? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/acts_like.rb:8
                                                                                            • ActiveRecord::Base.default_timezone $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                                                            • Kernel#respond_to? $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:137
                                                                                            • Time#getutc $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:138
                                                                                            • Time#to_formatted_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/conversions.rb:49
                                                                                              • Kernel#respond_to? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/conversions.rb:51
                                                                                              • Time#strftime $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/conversions.rb:51
                                                                                            • Kernel#respond_to? $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:143
                                                                                            • Time#usec $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:143
                                                                                            • Time#usec $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:144
                                                                                            • Kernel#sprintf $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:144
                                                                                  • ActiveRecord::ConnectionAdapters::SQLite3Adapter#block in exec_query $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/sqlite3_adapter.rb:191
                                                                                    • ActiveRecord::Relation::QueryAttribute#value_for_database $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_attribute.rb:10
                                                                                      • ActiveRecord::Relation::QueryAttribute#value_for_database $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:50
                                                                                        • ActiveRecord::Relation::QueryAttribute#value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:36
                                                                                          • ActiveRecord::Relation::QueryAttribute#type_cast $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_attribute.rb:6
                                                                                        • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#block in delegating_block /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/delegate.rb:339
                                                                                          • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#block in delegating_block /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/delegate.rb:339
                                                                                            • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#__getobj__ /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/delegate.rb:384
                                                                                            • ActiveRecord::Type::DateTime#serialize $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/helpers/time_value.rb:7
                                                                                              • ActiveRecord::Type::DateTime#apply_seconds_precision $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/helpers/time_value.rb:33
                                                                                              • ActiveSupport::TimeWithZone#acts_like? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/acts_like.rb:7
                                                                                                • Symbol#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/acts_like.rb:8
                                                                                                • String#intern $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/acts_like.rb:8
                                                                                                • ActiveSupport::TimeWithZone#respond_to? $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:446
                                                                                                  • Symbol#to_sym $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:448
                                                                                                  • Kernel#respond_to? $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:449
                                                                                              • ActiveRecord::Type::DateTime#is_utc? $GemPath0/gems/activerecord-5.0.2/lib/active_record/type/internal/timezone.rb:5
                                                                                                • ActiveRecord::Base.default_timezone $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                                                              • ActiveSupport::TimeWithZone#respond_to? $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:446
                                                                                                • Symbol#to_sym $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:448
                                                                                                • Kernel#respond_to? $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:449
                                                                                              • ActiveSupport::TimeWithZone#utc $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:63
                                                                                    • ActiveRecord::ConnectionAdapters::SQLite3Adapter#type_cast $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:29
                                                                                      • Kernel#respond_to? $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:30
                                                                                      • ActiveRecord::ConnectionAdapters::SQLite3Adapter#_type_cast $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/sqlite3/quoting.rb:31
                                                                                        • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/sqlite3/quoting.rb:33
                                                                                        • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/sqlite3/quoting.rb:35
                                                                                        • ActiveRecord::ConnectionAdapters::SQLite3Adapter#_type_cast $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:182
                                                                                          • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:184
                                                                                          • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:184
                                                                                          • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:184
                                                                                          • TrueClass#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:186
                                                                                            • BasicObject#== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:186
                                                                                          • FalseClass#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:187
                                                                                            • BasicObject#== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:187
                                                                                          • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:189
                                                                                          • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:190
                                                                                          • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:191
                                                                                          • Time.=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/calculations.rb:15
                                                                                            • Module#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/calculations.rb:16
                                                                                          • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quoted_date $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:133
                                                                                            • Time#acts_like? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/acts_like.rb:7
                                                                                              • Symbol#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/acts_like.rb:8
                                                                                              • String#intern $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/acts_like.rb:8
                                                                                              • Kernel#respond_to? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/acts_like.rb:8
                                                                                            • ActiveRecord::Base.default_timezone $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                                                            • Kernel#respond_to? $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:137
                                                                                            • Time#getutc $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:138
                                                                                            • Time#to_formatted_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/conversions.rb:49
                                                                                              • Kernel#respond_to? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/conversions.rb:51
                                                                                              • Time#strftime $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/conversions.rb:51
                                                                                            • Kernel#respond_to? $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:143
                                                                                            • Time#usec $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:143
                                                                                            • Time#usec $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:144
                                                                                            • Kernel#sprintf $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:144
                                                                                • ActiveRecord::ConnectionAdapters::SQLite3Adapter#log $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract_adapter.rb:582
                                                                                  • Kernel#object_id $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract_adapter.rb:587
                                                                                  • ActiveSupport::Notifications::Instrumenter#instrument $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/instrumenter.rb:17
                                                                                    • ActiveSupport::Notifications::Instrumenter#start $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/instrumenter.rb:32
                                                                                      • ActiveSupport::Notifications::Fanout#start $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:41
                                                                                        • ActiveSupport::Notifications::Fanout#listeners_for $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:53
                                                                                          • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/map.rb:92
                                                                                            • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/collection/map/non_concurrent_map_backend.rb:19
                                                                                        • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:42
                                                                                          • ActiveSupport::Notifications::Fanout#block in start $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:42
                                                                                            • ActiveSupport::Notifications::Fanout::Subscribers::Evented#start $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:97
                                                                                              • ActiveRecord::LogSubscriber#start $GemPath0/gems/activesupport-5.0.2/lib/active_support/log_subscriber.rb:78
                                                                                                • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:90
                                                                                                  • ActiveRecord::Base.logger $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                                                                • ActiveRecord::LogSubscriber#start $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:80
                                                                                                  • #<Class:Time>#now $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:81
                                                                                                    • Time#initialize $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:81
                                                                                                      • Integer#+ $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:81
                                                                                                  • Class#new $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:81
                                                                                                    • ActiveSupport::Notifications::Event#initialize $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/instrumenter.rb:56
                                                                                                      • Kernel#dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/instrumenter.rb:58
                                                                                                        • Kernel#initialize_dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/instrumenter.rb:58
                                                                                                          • Hash#initialize_copy $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/instrumenter.rb:58
                                                                                                  • ActiveRecord::LogSubscriber#event_stack $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:100
                                                                                                    • ActiveSupport::SubscriberQueueRegistry.instance $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:44
                                                                                                      • #<Class:Thread>#current $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:45
                                                                                                      • Thread#[] $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:45
                                                                                                    • ActiveSupport::SubscriberQueueRegistry#get_queue $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:116
                                                                                                  • Array#last $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:82
                                                                                                  • ActiveRecord::LogSubscriber#event_stack $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:100
                                                                                                    • ActiveSupport::SubscriberQueueRegistry.instance $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:44
                                                                                                      • #<Class:Thread>#current $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:45
                                                                                                      • Thread#[] $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:45
                                                                                                    • ActiveSupport::SubscriberQueueRegistry#get_queue $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:116
                                                                                                  • Array#push $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:85
                                                                                          • ActiveSupport::Notifications::Fanout#block in start $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:42
                                                                                            • ActiveSupport::Notifications::Fanout::Subscribers::Evented#start $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:97
                                                                                              • ActiveRecord::ExplainSubscriber#start $GemPath0/gems/activerecord-5.0.2/lib/active_record/explain_subscriber.rb:6
                                                                                    • ActiveRecord::ConnectionAdapters::SQLite3Adapter#block in log $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract_adapter.rb:589
                                                                                      • ActiveRecord::ConnectionAdapters::SQLite3Adapter#block in exec_query $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/sqlite3_adapter.rb:193
                                                                                        • SQLite3::Database#prepare $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:90
                                                                                          • Class#new $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:91
                                                                                            • SQLite3::Statement#initialize $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:91
                                                                                          • Kernel#block_given? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:92
                                                                                        • SQLite3::Statement#columns $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:101
                                                                                          • SQLite3::Statement#get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:135
                                                                                            • SQLite3::Statement#column_count $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                                                            • Class#new $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                                                              • Array#initialize $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                                                            • SQLite3::Statement#column_count $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                                                            • Class#new $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                                                              • Array#initialize $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                                                        • ActiveRecord::ConnectionAdapters::SQLite3Adapter#without_prepared_statement? $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract_adapter.rb:599
                                                                                        • SQLite3::Statement#bind_params $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:35
                                                                                          • Array#flatten $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:37
                                                                                          • Array#each $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:37
                                                                                            • SQLite3::Statement#block in bind_params $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:37
                                                                                              • Module#=== $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:38
                                                                                              • SQLite3::Statement#bind_param $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:41
                                                                                            • SQLite3::Statement#block in bind_params $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:37
                                                                                              • Module#=== $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:38
                                                                                              • SQLite3::Statement#bind_param $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:41
                                                                                            • SQLite3::Statement#block in bind_params $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:37
                                                                                              • Module#=== $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:38
                                                                                              • SQLite3::Statement#bind_param $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:41
                                                                                            • SQLite3::Statement#block in bind_params $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:37
                                                                                              • Module#=== $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:38
                                                                                              • SQLite3::Statement#bind_param $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:41
                                                                                        • Enumerable#to_a $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/sqlite3_adapter.rb:202
                                                                                          • SQLite3::Statement#each $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:106
                                                                                            • Kernel#loop $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:107
                                                                                              • SQLite3::Statement#block in each $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:107
                                                                                                • SQLite3::Statement#step $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                                                                                  • SQLite3::Database#encoding $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                                                                                • SQLite3::Statement#done? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:109
                                                                                        • SQLite3::Statement#close $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/sqlite3_adapter.rb:204
                                                                                        • Array#to_a $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/sqlite3_adapter.rb:217
                                                                                        • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/sqlite3_adapter.rb:217
                                                                                          • ActiveRecord::Result#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:39
                                                                                    • ActiveSupport::Notifications::Instrumenter#finish_with_state $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/instrumenter.rb:41
                                                                                      • ActiveSupport::Notifications::Fanout#finish $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:45
                                                                                        • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:46
                                                                                          • ActiveSupport::Notifications::Fanout#block in finish $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:46
                                                                                            • ActiveSupport::Notifications::Fanout::Subscribers::Evented#finish $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:101
                                                                                              • ActiveRecord::LogSubscriber#finish $GemPath0/gems/activesupport-5.0.2/lib/active_support/log_subscriber.rb:82
                                                                                                • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:90
                                                                                                  • ActiveRecord::Base.logger $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                                                                • ActiveRecord::LogSubscriber#finish $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:88
                                                                                                  • #<Class:Time>#now $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:89
                                                                                                    • Time#initialize $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:89
                                                                                                      • Integer#+ $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:89
                                                                                                  • ActiveRecord::LogSubscriber#event_stack $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:100
                                                                                                    • ActiveSupport::SubscriberQueueRegistry.instance $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:44
                                                                                                      • #<Class:Thread>#current $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:45
                                                                                                      • Thread#[] $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:45
                                                                                                    • ActiveSupport::SubscriberQueueRegistry#get_queue $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:116
                                                                                                  • Array#pop $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:90
                                                                                                  • Hash#merge! $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:92
                                                                                                  • String#split $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:94
                                                                                                  • Array#first $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:94
                                                                                                  • ActiveRecord::LogSubscriber#sql $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:37
                                                                                                    • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:38
                                                                                                    • ActiveRecord::LogSubscriber.runtime $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:9
                                                                                                      • ActiveRecord::RuntimeRegistry.sql_runtime $GemPath0/gems/activerecord-5.0.2/lib/active_record/runtime_registry.rb:18
                                                                                                        • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:44
                                                                                                          • #<Class:Thread>#current $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:45
                                                                                                          • Thread#[] $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:45
                                                                                                    • ActiveSupport::Notifications::Event#duration $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/instrumenter.rb:78
                                                                                                      • Time#minus_with_coercion $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/calculations.rb:258
                                                                                                        • Kernel#respond_to? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/calculations.rb:259
                                                                                                        • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/calculations.rb:260
                                                                                                        • Time#minus_with_duration $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/calculations.rb:245
                                                                                                          • ActiveSupport::Duration.=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/duration.rb:102
                                                                                                            • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/duration.rb:103
                                                                                                          • Time#- $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/calculations.rb:249
                                                                                                            • Integer#- $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/calculations.rb:249
                                                                                                            • Numeric#quo $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/calculations.rb:249
                                                                                                              • Integer#fdiv $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/calculations.rb:249
                                                                                                    • ActiveRecord::LogSubscriber.runtime= $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:5
                                                                                                      • ActiveRecord::RuntimeRegistry.sql_runtime= $GemPath0/gems/activerecord-5.0.2/lib/active_record/runtime_registry.rb:19
                                                                                                        • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:44
                                                                                                          • #<Class:Thread>#current $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:45
                                                                                                          • Thread#[] $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:45
                                                                                                    • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:90
                                                                                                      • ActiveRecord::Base.logger $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                                                                    • ActiveSupport::Logger#debug? $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger.rb:92
                                                                                                      • ActiveSupport::Logger#level $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:27
                                                                                                        • ActiveSupport::Logger#local_level $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:15
                                                                                                          • ActiveSupport::Logger#local_log_id $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:11
                                                                                                            • #<Class:Thread>#current $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:12
                                                                                                            • BasicObject#__id__ $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:12
                                                                                                          • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/map.rb:92
                                                                                                            • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/collection/map/non_concurrent_map_backend.rb:19
                                                                                                    • Array#include? $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:43
                                                                                                    • ActiveSupport::Notifications::Event#duration $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/instrumenter.rb:78
                                                                                                    • Float#round $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:45
                                                                                                    • Float#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/numeric/conversions.rb:103
                                                                                                      • NilClass#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/numeric/conversions.rb:105
                                                                                                      • Float#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/numeric/conversions.rb:106
                                                                                                    • Array#map $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:50
                                                                                                      • ActiveRecord::LogSubscriber#block in sql $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:50
                                                                                                        • ActiveRecord::LogSubscriber#render_bind $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:23
                                                                                                          • ActiveModel::Type::String#binary? $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/value.rb:55
                                                                                                          • ActiveRecord::Relation::QueryAttribute#value_for_database $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_attribute.rb:10
                                                                                                      • ActiveRecord::LogSubscriber#block in sql $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:50
                                                                                                        • ActiveRecord::LogSubscriber#render_bind $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:23
                                                                                                          • ActiveModel::Type::Text#binary? $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/value.rb:55
                                                                                                          • ActiveRecord::Relation::QueryAttribute#value_for_database $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_attribute.rb:10
                                                                                                      • ActiveRecord::LogSubscriber#block in sql $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:50
                                                                                                        • ActiveRecord::LogSubscriber#render_bind $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:23
                                                                                                          • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#block in delegating_block /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/delegate.rb:339
                                                                                                            • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#block in delegating_block /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/delegate.rb:339
                                                                                                              • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#__getobj__ /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/delegate.rb:384
                                                                                                              • ActiveRecord::Type::DateTime#binary? $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/value.rb:55
                                                                                                          • ActiveRecord::Relation::QueryAttribute#value_for_database $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_attribute.rb:10
                                                                                                      • ActiveRecord::LogSubscriber#block in sql $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:50
                                                                                                        • ActiveRecord::LogSubscriber#render_bind $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:23
                                                                                                          • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#block in delegating_block /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/delegate.rb:339
                                                                                                            • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#block in delegating_block /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/delegate.rb:339
                                                                                                              • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#__getobj__ /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/delegate.rb:384
                                                                                                              • ActiveRecord::Type::DateTime#binary? $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/value.rb:55
                                                                                                          • ActiveRecord::Relation::QueryAttribute#value_for_database $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_attribute.rb:10
                                                                                                    • Array#inspect $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:50
                                                                                                      • Array#inspect $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:50
                                                                                                        • String#inspect $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:50
                                                                                                        • String#inspect $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:50
                                                                                                      • Array#inspect $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:50
                                                                                                        • String#inspect $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:50
                                                                                                        • String#inspect $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:50
                                                                                                      • Array#inspect $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:50
                                                                                                        • String#inspect $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:50
                                                                                                        • Time#inspect $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:50
                                                                                                      • Array#inspect $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:50
                                                                                                        • String#inspect $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:50
                                                                                                        • Time#inspect $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:50
                                                                                                    • ActiveRecord::LogSubscriber#colorize_payload_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:61
                                                                                                      • String#blank? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/blank.rb:114
                                                                                                        • Regexp#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/blank.rb:118
                                                                                                      • ActiveRecord::LogSubscriber#color $GemPath0/gems/activesupport-5.0.2/lib/active_support/log_subscriber.rb:102
                                                                                                        • ActiveRecord::LogSubscriber#colorize_logging $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:67
                                                                                                        • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/log_subscriber.rb:104
                                                                                                    • ActiveRecord::LogSubscriber#sql_color $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:69
                                                                                                      • Regexp#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:71
                                                                                                      • Regexp#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:73
                                                                                                      • Regexp#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:73
                                                                                                      • Regexp#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:75
                                                                                                      • Regexp#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:77
                                                                                                    • ActiveRecord::LogSubscriber#color $GemPath0/gems/activesupport-5.0.2/lib/active_support/log_subscriber.rb:102
                                                                                                      • ActiveRecord::LogSubscriber#colorize_logging $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:67
                                                                                                      • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/log_subscriber.rb:104
                                                                                                    • ActiveRecord::LogSubscriber#debug $GemPath0/gems/activesupport-5.0.2/lib/active_support/log_subscriber.rb:92
                                                                                                      • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:90
                                                                                                        • ActiveRecord::Base.logger $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                                                                      • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:90
                                                                                                        • ActiveRecord::Base.logger $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                                                                      • ActiveSupport::Logger#debug /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:490
                                                                                                        • ActiveSupport::Logger#block (2 levels) in broadcast $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger.rb:24
                                                                                                          • ActiveSupport::Logger#block (2 levels) in broadcast $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger.rb:24
                                                                                                            • ActiveSupport::Logger#add $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger.rb:85
                                                                                                              • Kernel#nil? $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger.rb:86
                                                                                                              • ActiveSupport::Logger#level $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:27
                                                                                                                • ActiveSupport::Logger#local_level $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:15
                                                                                                                  • ActiveSupport::Logger#local_log_id $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:11
                                                                                                                    • #<Class:Thread>#current $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:12
                                                                                                                    • BasicObject#__id__ $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:12
                                                                                                                  • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/map.rb:92
                                                                                                                    • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/collection/map/non_concurrent_map_backend.rb:19
                                                                                                              • ActiveSupport::Logger#add /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:455
                                                                                                                • Kernel#nil? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:457
                                                                                                                • NilClass#nil? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:461
                                                                                                                • Kernel#block_given? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:462
                                                                                                                • ActiveSupport::Logger#format_severity /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:577
                                                                                                                • #<Class:Time>#now /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:470
                                                                                                                  • Time#initialize /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:470
                                                                                                                    • Integer#+ /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:470
                                                                                                                • ActiveSupport::Logger#format_message /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:581
                                                                                                                  • ActiveSupport::Logger::SimpleFormatter#call $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger.rb:101
                                                                                                                    • Module#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger.rb:102
                                                                                                                • Logger::LogDevice#write /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:684
                                                                                                                  • Logger::LogDevice#mon_synchronize /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:211
                                                                                                                    • Logger::LogDevice#mon_enter /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:185
                                                                                                                      • #<Class:Thread>#current /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:186
                                                                                                                      • Thread::Mutex#lock /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:187
                                                                                                                      • #<Class:Thread>#current /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:188
                                                                                                                    • Logger::LogDevice#block in write /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:686
                                                                                                                      • IO#write /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:695
                                                                                                                    • Logger::LogDevice#mon_exit /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:197
                                                                                                                      • Logger::LogDevice#mon_check_owner /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:247
                                                                                                                        • #<Class:Thread>#current /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:248
                                                                                                                      • Thread::Mutex#unlock /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:202
                                                                                                            • ActiveSupport::Logger#add $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger.rb:85
                                                                                                              • Kernel#nil? $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger.rb:86
                                                                                                              • ActiveSupport::Logger#level $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:27
                                                                                                                • ActiveSupport::Logger#local_level $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:15
                                                                                                                  • ActiveSupport::Logger#local_log_id $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:11
                                                                                                                    • #<Class:Thread>#current $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:12
                                                                                                                    • BasicObject#__id__ $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:12
                                                                                                                  • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/map.rb:92
                                                                                                                    • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/collection/map/non_concurrent_map_backend.rb:19
                                                                                                              • ActiveSupport::Logger#add /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:455
                                                                                                                • Kernel#nil? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:457
                                                                                                                • NilClass#nil? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:461
                                                                                                                • Kernel#block_given? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:462
                                                                                                                • ActiveSupport::Logger#format_severity /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:577
                                                                                                                • #<Class:Time>#now /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:470
                                                                                                                  • Time#initialize /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:470
                                                                                                                    • Integer#+ /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:470
                                                                                                                • ActiveSupport::Logger#format_message /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:581
                                                                                                                  • ActiveSupport::Logger::SimpleFormatter#call $GemPath0/gems/activesupport-5.0.2/lib/active_support/tagged_logging.rb:20
                                                                                                                    • ActiveSupport::Logger::SimpleFormatter#tags_text $GemPath0/gems/activesupport-5.0.2/lib/active_support/tagged_logging.rb:51
                                                                                                                      • ActiveSupport::Logger::SimpleFormatter#current_tags $GemPath0/gems/activesupport-5.0.2/lib/active_support/tagged_logging.rb:45
                                                                                                                        • #<Class:Thread>#current $GemPath0/gems/activesupport-5.0.2/lib/active_support/tagged_logging.rb:48
                                                                                                                        • Thread#[] $GemPath0/gems/activesupport-5.0.2/lib/active_support/tagged_logging.rb:48
                                                                                                                      • Array#any? $GemPath0/gems/activesupport-5.0.2/lib/active_support/tagged_logging.rb:53
                                                                                                                    • NilClass#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/tagged_logging.rb:21
                                                                                                                    • ActiveSupport::Logger::SimpleFormatter#call $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger.rb:101
                                                                                                                      • Module#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger.rb:102
                                                                                                                • Logger::LogDevice#write /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:684
                                                                                                                  • Logger::LogDevice#mon_synchronize /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:211
                                                                                                                    • Logger::LogDevice#mon_enter /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:185
                                                                                                                      • #<Class:Thread>#current /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:186
                                                                                                                      • Thread::Mutex#lock /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:187
                                                                                                                      • #<Class:Thread>#current /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:188
                                                                                                                    • Logger::LogDevice#block in write /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:686
                                                                                                                      • IO#write /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:695
                                                                                                                    • Logger::LogDevice#mon_exit /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:197
                                                                                                                      • Logger::LogDevice#mon_check_owner /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:247
                                                                                                                        • #<Class:Thread>#current /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:248
                                                                                                                      • Thread::Mutex#unlock /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:202
                                                                                          • ActiveSupport::Notifications::Fanout#block in finish $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:46
                                                                                            • ActiveSupport::Notifications::Fanout::Subscribers::Evented#finish $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:101
                                                                                              • ActiveRecord::ExplainSubscriber#finish $GemPath0/gems/activerecord-5.0.2/lib/active_record/explain_subscriber.rb:10
                                                                                                • ActiveRecord::ExplainRegistry.collect? $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:53
                                                                                                  • ActiveRecord::ExplainRegistry.instance $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:44
                                                                                                    • #<Class:Thread>#current $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:45
                                                                                                    • Thread#[] $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:45
                                                                                                  • ActiveRecord::ExplainRegistry#collect? $GemPath0/gems/activerecord-5.0.2/lib/active_record/explain_registry.rb:21
                                                                            • ActiveRecord::ConnectionAdapters::SQLite3Adapter#last_inserted_id $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/sqlite3_adapter.rb:227
                                                                              • SQLite3::Database#last_insert_row_id $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/sqlite3_adapter.rb:228
                                                                      • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/persistence.rb:561
                                                                      • Article.primary_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/primary_key.rb:72
                                                                      • Article#__temp__9646 $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:34
                                                                        • Article#_read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:65
                                                                          • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:66
                                                                          • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:43
                                                                            • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                                                            • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:36
                                                                      • Article#__temp__9646= $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/write.rb:18
                                                                        • Article#write_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/write.rb:31
                                                                          • Article#write_attribute_with_type_cast $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/write.rb:45
                                                                            • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/write.rb:46
                                                                            • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/write.rb:47
                                                                            • Article.primary_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/primary_key.rb:72
                                                                            • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/write.rb:47
                                                                            • Article.primary_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/primary_key.rb:72
                                                                            • ActiveRecord::AttributeSet#write_from_user $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:52
                                                                              • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                                                              • ActiveRecord::Attribute::FromDatabase#with_value_from_user $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:66
                                                                                • ActiveModel::Type::Integer#assert_valid_value $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/value.rb:103
                                                                                • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:68
                                                                                • ActiveRecord::Attribute::FromDatabase.from_user $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:8
                                                                                  • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:9
                                                                                    • ActiveRecord::Attribute::FromUser#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:29
                                                                      • Article#__temp__9646 $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:34
                                                                        • Article#_read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:65
                                                                          • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:66
                                                                          • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:43
                                                                            • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                                                            • ActiveRecord::Attribute::FromUser#value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:36
                                                                              • ActiveRecord::Attribute::FromUser#type_cast $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:149
                                                                                • ActiveModel::Type::Integer#cast $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/helpers/numeric.rb:5
                                                                                  • TrueClass#=== $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/helpers/numeric.rb:7
                                                                                    • BasicObject#== $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/helpers/numeric.rb:7
                                                                                  • FalseClass#=== $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/helpers/numeric.rb:8
                                                                                    • BasicObject#== $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/helpers/numeric.rb:8
                                                                                  • Module#=== $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/helpers/numeric.rb:9
                                                                                  • ActiveModel::Type::Integer#cast $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/value.rb:35
                                                                                    • Kernel#nil? $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/value.rb:36
                                                                                    • ActiveModel::Type::Integer#cast_value $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:38
                                                                                      • Integer#to_i $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:43
                                                                    • Article#each_counter_cached_associations $GemPath0/gems/activerecord-5.0.2/lib/active_record/counter_cache.rb:157
                                                                      • Article#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                                                        • Article#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                                                          • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:111
                                                                          • Kernel#class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                                                          • Kernel#public_send $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                                                            • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                              • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                      • Hash#each $GemPath0/gems/activerecord-5.0.2/lib/active_record/counter_cache.rb:158
                                                                        • Article#block in each_counter_cached_associations $GemPath0/gems/activerecord-5.0.2/lib/active_record/counter_cache.rb:158
                                                                          • ActiveRecord::Reflection::HasManyReflection#belongs_to? $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:504
                                                        • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:456
                                                          • ActiveSupport::Callbacks::CallbackSequence#block in call $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:456
                                                            • ActiveSupport::Callbacks::Filters::After.block in halting_and_conditional $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:201
                                                              • ActiveSupport::Callbacks::Filters::Environment#target $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:202
                                                              • ActiveSupport::Callbacks::Filters::Environment#value $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:203
                                                              • ActiveSupport::Callbacks::Filters::Environment#halted $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:204
                                                              • Enumerable#all? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:206
                                                                • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:206
                                                                  • ActiveSupport::Callbacks::Filters::After.block (2 levels) in halting_and_conditional $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:206
                                                                    • ActiveSupport::Callbacks::Conditionals::Value#call $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:116
                                                                      • Article.block (2 levels) in _define_after_model_callback $GemPath0/gems/activemodel-5.0.2/lib/active_model/callbacks.rb:141
                                                                        • BasicObject#!= $GemPath0/gems/activemodel-5.0.2/lib/active_model/callbacks.rb:142
                                                                          • Integer#== $GemPath0/gems/activemodel-5.0.2/lib/active_model/callbacks.rb:142
                                                                            • BasicObject#== $GemPath0/gems/activemodel-5.0.2/lib/active_model/callbacks.rb:142
                                                              • ActiveSupport::Callbacks::Callback#block in make_lambda $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:382
                                                                • Article#block in define_non_cyclic_method $GemPath0/gems/activerecord-5.0.2/lib/active_record/autosave_association.rb:152
                                                                  • Article#block in define_non_cyclic_method $GemPath0/gems/activerecord-5.0.2/lib/active_record/autosave_association.rb:152
                                                                    • BasicObject#instance_eval $GemPath0/gems/activerecord-5.0.2/lib/active_record/autosave_association.rb:158
                                                                      • Article#block in add_autosave_association_callbacks $GemPath0/gems/activerecord-5.0.2/lib/active_record/autosave_association.rb:185
                                                                        • Article#save_collection_association $GemPath0/gems/activerecord-5.0.2/lib/active_record/autosave_association.rb:382
                                                                          • Article#association_instance_get $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:273
                                                      • ActiveSupport::Callbacks::Filters::Environment#value $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:101
                                              • BasicObject#!= $GemPath0/gems/activerecord-5.0.2/lib/active_record/persistence.rb:541
                                                • Integer#== $GemPath0/gems/activerecord-5.0.2/lib/active_record/persistence.rb:541
                                                  • BasicObject#== $GemPath0/gems/activerecord-5.0.2/lib/active_record/persistence.rb:541
                                      • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:456
                                    • ActiveSupport::Callbacks::Filters::Environment#value $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:101
                          • Article#changes_applied $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/dirty.rb:52
                            • Article#mutation_tracker $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/dirty.rb:103
                            • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/dirty.rb:54
                              • ActiveSupport::HashWithIndifferentAccess#initialize $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:64
                                • Kernel#respond_to? $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:65
                                • Hash#initialize $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:66
                                • ActiveSupport::HashWithIndifferentAccess#update $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:140
                                  • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:141
                                  • Hash#to_hash $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:144
                                  • Hash#each_pair $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:144
                                • Hash#to_hash $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:69
                                • Hash#default $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:70
                                • Hash#default_proc $GemPath0/gems/activesupport-5.0.2/lib/active_support/hash_with_indifferent_access.rb:71
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                              • ActiveRecord::AttributeSet#map $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:91
                                • Hash#transform_values $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:92
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                                    • ActiveRecord::Attribute::FromUser#value_for_database $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:50
                                      • ActiveRecord::Attribute::FromUser#value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:36
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                                        • ActiveModel::Type::Integer#cast $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/helpers/numeric.rb:5
                                          • TrueClass#=== $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/helpers/numeric.rb:7
                                            • BasicObject#== $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/helpers/numeric.rb:7
                                          • FalseClass#=== $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/helpers/numeric.rb:8
                                            • BasicObject#== $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/helpers/numeric.rb:8
                                          • Module#=== $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/helpers/numeric.rb:9
                                          • ActiveModel::Type::Integer#cast $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/value.rb:35
                                            • Kernel#nil? $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/value.rb:36
                                            • ActiveModel::Type::Integer#cast_value $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:38
                                              • Integer#to_i $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:43
                                        • ActiveModel::Type::Integer#ensure_in_range $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:47
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                                            • Integer#<=> $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:48
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                                      • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:72
                                      • ActiveRecord::Attribute::FromUser.from_database $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:4
                                        • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:5
                                          • ActiveRecord::Attribute::FromDatabase#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:29
                                  • ActiveRecord::Attribute::FromUser#forgetting_assignment $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:62
                                    • ActiveRecord::Attribute::FromUser#value_for_database $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:50
                                      • ActiveRecord::Attribute::FromUser#value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:36
                                      • ActiveModel::Type::String#serialize $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/immutable_string.rb:8
                                        • Module#=== $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/immutable_string.rb:10
                                        • ActiveSupport::Duration.=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/duration.rb:102
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                                        • TrueClass#=== $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/immutable_string.rb:11
                                          • BasicObject#== $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/immutable_string.rb:11
                                        • FalseClass#=== $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/immutable_string.rb:12
                                          • BasicObject#== $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/immutable_string.rb:12
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                                        • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:5
                                          • ActiveRecord::Attribute::FromDatabase#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:29
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                                      • ActiveModel::Type::Text#serialize $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/immutable_string.rb:8
                                        • Module#=== $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/immutable_string.rb:10
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                                        • TrueClass#=== $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/immutable_string.rb:11
                                          • BasicObject#== $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/immutable_string.rb:11
                                        • FalseClass#=== $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/immutable_string.rb:12
                                          • BasicObject#== $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/immutable_string.rb:12
                                        • ActiveModel::Type::Text#serialize $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/value.rb:43
                                    • ActiveRecord::Attribute::FromUser#with_value_from_database $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:71
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                                      • ActiveRecord::Attribute::FromUser.from_database $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:4
                                        • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:5
                                          • ActiveRecord::Attribute::FromDatabase#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:29
                                  • ActiveRecord::Attribute::FromUser#forgetting_assignment $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:62
                                    • ActiveRecord::Attribute::FromUser#value_for_database $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:50
                                      • ActiveRecord::Attribute::FromUser#value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:36
                                      • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#block in delegating_block /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/delegate.rb:339
                                        • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#block in delegating_block /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/delegate.rb:339
                                          • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#__getobj__ /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/delegate.rb:384
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                                            • ActiveSupport::TimeWithZone#acts_like? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/acts_like.rb:7
                                              • Symbol#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/acts_like.rb:8
                                              • String#intern $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/acts_like.rb:8
                                              • ActiveSupport::TimeWithZone#respond_to? $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:446
                                                • Symbol#to_sym $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:448
                                                • Kernel#respond_to? $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:449
                                            • ActiveRecord::Type::DateTime#is_utc? $GemPath0/gems/activerecord-5.0.2/lib/active_record/type/internal/timezone.rb:5
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                                            • ActiveSupport::TimeWithZone#respond_to? $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:446
                                              • Symbol#to_sym $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:448
                                              • Kernel#respond_to? $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:449
                                            • ActiveSupport::TimeWithZone#utc $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:63
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                                      • ActiveRecord::Attribute::FromUser.from_database $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:4
                                        • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:5
                                          • ActiveRecord::Attribute::FromDatabase#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:29
                                  • ActiveRecord::Attribute::FromUser#forgetting_assignment $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:62
                                    • ActiveRecord::Attribute::FromUser#value_for_database $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:50
                                      • ActiveRecord::Attribute::FromUser#value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:36
                                      • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#block in delegating_block /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/delegate.rb:339
                                        • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#block in delegating_block /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/delegate.rb:339
                                          • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#__getobj__ /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/delegate.rb:384
                                          • ActiveRecord::Type::DateTime#serialize $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/helpers/time_value.rb:7
                                            • ActiveRecord::Type::DateTime#apply_seconds_precision $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/helpers/time_value.rb:33
                                            • ActiveSupport::TimeWithZone#acts_like? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/acts_like.rb:7
                                              • Symbol#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/acts_like.rb:8
                                              • String#intern $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/acts_like.rb:8
                                              • ActiveSupport::TimeWithZone#respond_to? $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:446
                                                • Symbol#to_sym $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:448
                                                • Kernel#respond_to? $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:449
                                            • ActiveRecord::Type::DateTime#is_utc? $GemPath0/gems/activerecord-5.0.2/lib/active_record/type/internal/timezone.rb:5
                                              • ActiveRecord::Base.default_timezone $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                            • ActiveSupport::TimeWithZone#respond_to? $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:446
                                              • Symbol#to_sym $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:448
                                              • Kernel#respond_to? $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:449
                                            • ActiveSupport::TimeWithZone#utc $GemPath0/gems/activesupport-5.0.2/lib/active_support/time_with_zone.rb:63
                                    • ActiveRecord::Attribute::FromUser#with_value_from_database $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:71
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                                      • ActiveRecord::Attribute::FromUser.from_database $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:4
                                        • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:5
                                          • ActiveRecord::Attribute::FromDatabase#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:29
                                • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:93
                                  • ActiveRecord::AttributeSet#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:7
                  • #<Class:Thread>#current $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/transaction.rb:198
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                  • ActiveRecord::ConnectionAdapters::TransactionManager#commit_transaction $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/transaction.rb:168
                    • Array#last $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/transaction.rb:169
                    • ActiveRecord::ConnectionAdapters::RealTransaction#before_commit_records $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/transaction.rb:79
                      • Array#uniq $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/transaction.rb:80
                      • Array#each $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/transaction.rb:80
                    • Array#pop $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/transaction.rb:174
                    • ActiveRecord::ConnectionAdapters::RealTransaction#commit $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/transaction.rb:142
                      • ActiveRecord::ConnectionAdapters::SQLite3Adapter#commit_db_transaction $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/sqlite3_adapter.rb:239
                        • ActiveRecord::ConnectionAdapters::SQLite3Adapter#log $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract_adapter.rb:582
                          • Kernel#object_id $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract_adapter.rb:587
                          • ActiveSupport::Notifications::Instrumenter#instrument $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/instrumenter.rb:17
                            • ActiveSupport::Notifications::Instrumenter#start $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/instrumenter.rb:32
                              • ActiveSupport::Notifications::Fanout#start $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:41
                                • ActiveSupport::Notifications::Fanout#listeners_for $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:53
                                  • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/map.rb:92
                                    • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/collection/map/non_concurrent_map_backend.rb:19
                                • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:42
                                  • ActiveSupport::Notifications::Fanout#block in start $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:42
                                    • ActiveSupport::Notifications::Fanout::Subscribers::Evented#start $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:97
                                      • ActiveRecord::LogSubscriber#start $GemPath0/gems/activesupport-5.0.2/lib/active_support/log_subscriber.rb:78
                                        • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:90
                                          • ActiveRecord::Base.logger $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                        • ActiveRecord::LogSubscriber#start $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:80
                                          • #<Class:Time>#now $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:81
                                            • Time#initialize $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:81
                                              • Integer#+ $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:81
                                          • Class#new $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:81
                                            • ActiveSupport::Notifications::Event#initialize $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/instrumenter.rb:56
                                              • Kernel#dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/instrumenter.rb:58
                                                • Kernel#initialize_dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/instrumenter.rb:58
                                                  • Hash#initialize_copy $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/instrumenter.rb:58
                                          • ActiveRecord::LogSubscriber#event_stack $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:100
                                            • ActiveSupport::SubscriberQueueRegistry.instance $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:44
                                              • #<Class:Thread>#current $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:45
                                              • Thread#[] $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:45
                                            • ActiveSupport::SubscriberQueueRegistry#get_queue $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:116
                                          • Array#last $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:82
                                          • ActiveRecord::LogSubscriber#event_stack $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:100
                                            • ActiveSupport::SubscriberQueueRegistry.instance $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:44
                                              • #<Class:Thread>#current $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:45
                                              • Thread#[] $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:45
                                            • ActiveSupport::SubscriberQueueRegistry#get_queue $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:116
                                          • Array#push $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:85
                                  • ActiveSupport::Notifications::Fanout#block in start $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:42
                                    • ActiveSupport::Notifications::Fanout::Subscribers::Evented#start $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:97
                                      • ActiveRecord::ExplainSubscriber#start $GemPath0/gems/activerecord-5.0.2/lib/active_record/explain_subscriber.rb:6
                            • ActiveRecord::ConnectionAdapters::SQLite3Adapter#block in log $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract_adapter.rb:589
                              • ActiveRecord::ConnectionAdapters::SQLite3Adapter#block in commit_db_transaction $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                • SQLite3::Database#commit $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:517
                                  • SQLite3::Database#execute $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:122
                                    • Kernel#nil? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:123
                                    • SQLite3::Database#prepare $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:90
                                      • Class#new $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:91
                                        • SQLite3::Statement#initialize $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:91
                                      • Kernel#block_given? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:92
                                      • SQLite3::Database#block in execute $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:137
                                        • SQLite3::Statement#bind_params $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:35
                                          • Array#flatten $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:37
                                          • Array#each $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:37
                                        • SQLite3::Statement#columns $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:101
                                          • SQLite3::Statement#get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:135
                                            • SQLite3::Statement#column_count $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                            • Class#new $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                              • Array#initialize $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                            • SQLite3::Statement#column_count $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                            • Class#new $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                              • Array#initialize $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                        • Kernel#block_given? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:142
                                        • Enumerable#map $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:152
                                          • SQLite3::Statement#each $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:106
                                            • Kernel#loop $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:107
                                              • SQLite3::Statement#block in each $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:107
                                                • SQLite3::Statement#step $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                                  • SQLite3::Database#encoding $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                                • SQLite3::Statement#done? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:109
                                      • SQLite3::Statement#closed? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:97
                                      • SQLite3::Statement#close $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:97
                            • ActiveSupport::Notifications::Instrumenter#finish_with_state $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/instrumenter.rb:41
                              • ActiveSupport::Notifications::Fanout#finish $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:45
                                • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:46
                                  • ActiveSupport::Notifications::Fanout#block in finish $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:46
                                    • ActiveSupport::Notifications::Fanout::Subscribers::Evented#finish $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:101
                                      • ActiveRecord::LogSubscriber#finish $GemPath0/gems/activesupport-5.0.2/lib/active_support/log_subscriber.rb:82
                                        • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:90
                                          • ActiveRecord::Base.logger $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                        • ActiveRecord::LogSubscriber#finish $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:88
                                          • #<Class:Time>#now $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:89
                                            • Time#initialize $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:89
                                              • Integer#+ $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:89
                                          • ActiveRecord::LogSubscriber#event_stack $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:100
                                            • ActiveSupport::SubscriberQueueRegistry.instance $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:44
                                              • #<Class:Thread>#current $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:45
                                              • Thread#[] $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:45
                                            • ActiveSupport::SubscriberQueueRegistry#get_queue $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:116
                                          • Array#pop $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:90
                                          • Hash#merge! $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:92
                                          • String#split $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:94
                                          • Array#first $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:94
                                          • ActiveRecord::LogSubscriber#sql $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:37
                                            • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:38
                                            • ActiveRecord::LogSubscriber.runtime $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:9
                                              • ActiveRecord::RuntimeRegistry.sql_runtime $GemPath0/gems/activerecord-5.0.2/lib/active_record/runtime_registry.rb:18
                                                • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:44
                                                  • #<Class:Thread>#current $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:45
                                                  • Thread#[] $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:45
                                            • ActiveSupport::Notifications::Event#duration $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/instrumenter.rb:78
                                              • Time#minus_with_coercion $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/calculations.rb:258
                                                • Kernel#respond_to? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/calculations.rb:259
                                                • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/calculations.rb:260
                                                • Time#minus_with_duration $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/calculations.rb:245
                                                  • ActiveSupport::Duration.=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/duration.rb:102
                                                    • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/duration.rb:103
                                                  • Time#- $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/calculations.rb:249
                                                    • Integer#- $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/calculations.rb:249
                                                    • Numeric#quo $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/calculations.rb:249
                                                      • Integer#fdiv $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/calculations.rb:249
                                            • ActiveRecord::LogSubscriber.runtime= $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:5
                                              • ActiveRecord::RuntimeRegistry.sql_runtime= $GemPath0/gems/activerecord-5.0.2/lib/active_record/runtime_registry.rb:19
                                                • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:44
                                                  • #<Class:Thread>#current $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:45
                                                  • Thread#[] $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:45
                                            • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:90
                                              • ActiveRecord::Base.logger $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                            • ActiveSupport::Logger#debug? $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger.rb:92
                                              • ActiveSupport::Logger#level $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:27
                                                • ActiveSupport::Logger#local_level $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:15
                                                  • ActiveSupport::Logger#local_log_id $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:11
                                                    • #<Class:Thread>#current $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:12
                                                    • BasicObject#__id__ $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:12
                                                  • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/map.rb:92
                                                    • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/collection/map/non_concurrent_map_backend.rb:19
                                            • Array#include? $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:43
                                              • String#== $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:43
                                              • String#== $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:43
                                            • NilClass#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:45
                                            • ActiveSupport::Notifications::Event#duration $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/instrumenter.rb:78
                                            • Float#round $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:45
                                            • Float#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/numeric/conversions.rb:103
                                              • NilClass#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/numeric/conversions.rb:105
                                              • Float#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/numeric/conversions.rb:106
                                            • ActiveRecord::LogSubscriber#colorize_payload_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:61
                                              • NilClass#blank? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/blank.rb:52
                                              • ActiveRecord::LogSubscriber#color $GemPath0/gems/activesupport-5.0.2/lib/active_support/log_subscriber.rb:102
                                                • ActiveRecord::LogSubscriber#colorize_logging $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:67
                                                • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/log_subscriber.rb:104
                                            • ActiveRecord::LogSubscriber#sql_color $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:69
                                              • Regexp#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:71
                                              • Regexp#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:73
                                              • Regexp#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:73
                                              • Regexp#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:75
                                              • Regexp#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:77
                                              • Regexp#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:79
                                              • Regexp#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:81
                                              • Regexp#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:83
                                            • ActiveRecord::LogSubscriber#color $GemPath0/gems/activesupport-5.0.2/lib/active_support/log_subscriber.rb:102
                                              • ActiveRecord::LogSubscriber#colorize_logging $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:67
                                              • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/log_subscriber.rb:104
                                            • NilClass#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:56
                                            • ActiveRecord::LogSubscriber#debug $GemPath0/gems/activesupport-5.0.2/lib/active_support/log_subscriber.rb:92
                                              • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:90
                                                • ActiveRecord::Base.logger $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                              • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:90
                                                • ActiveRecord::Base.logger $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                              • ActiveSupport::Logger#debug /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:490
                                                • ActiveSupport::Logger#block (2 levels) in broadcast $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger.rb:24
                                                  • ActiveSupport::Logger#block (2 levels) in broadcast $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger.rb:24
                                                    • ActiveSupport::Logger#add $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger.rb:85
                                                      • Kernel#nil? $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger.rb:86
                                                      • ActiveSupport::Logger#level $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:27
                                                        • ActiveSupport::Logger#local_level $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:15
                                                          • ActiveSupport::Logger#local_log_id $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:11
                                                            • #<Class:Thread>#current $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:12
                                                            • BasicObject#__id__ $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:12
                                                          • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/map.rb:92
                                                            • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/collection/map/non_concurrent_map_backend.rb:19
                                                      • ActiveSupport::Logger#add /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:455
                                                        • Kernel#nil? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:457
                                                        • NilClass#nil? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:461
                                                        • Kernel#block_given? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:462
                                                        • ActiveSupport::Logger#format_severity /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:577
                                                        • #<Class:Time>#now /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:470
                                                          • Time#initialize /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:470
                                                            • Integer#+ /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:470
                                                        • ActiveSupport::Logger#format_message /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:581
                                                          • ActiveSupport::Logger::SimpleFormatter#call $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger.rb:101
                                                            • Module#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger.rb:102
                                                        • Logger::LogDevice#write /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:684
                                                          • Logger::LogDevice#mon_synchronize /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:211
                                                            • Logger::LogDevice#mon_enter /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:185
                                                              • #<Class:Thread>#current /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:186
                                                              • Thread::Mutex#lock /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:187
                                                              • #<Class:Thread>#current /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:188
                                                            • Logger::LogDevice#block in write /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:686
                                                              • IO#write /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:695
                                                            • Logger::LogDevice#mon_exit /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:197
                                                              • Logger::LogDevice#mon_check_owner /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:247
                                                                • #<Class:Thread>#current /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:248
                                                              • Thread::Mutex#unlock /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:202
                                                    • ActiveSupport::Logger#add $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger.rb:85
                                                      • Kernel#nil? $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger.rb:86
                                                      • ActiveSupport::Logger#level $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:27
                                                        • ActiveSupport::Logger#local_level $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:15
                                                          • ActiveSupport::Logger#local_log_id $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:11
                                                            • #<Class:Thread>#current $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:12
                                                            • BasicObject#__id__ $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:12
                                                          • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/map.rb:92
                                                            • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/collection/map/non_concurrent_map_backend.rb:19
                                                      • ActiveSupport::Logger#add /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:455
                                                        • Kernel#nil? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:457
                                                        • NilClass#nil? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:461
                                                        • Kernel#block_given? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:462
                                                        • ActiveSupport::Logger#format_severity /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:577
                                                        • #<Class:Time>#now /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:470
                                                          • Time#initialize /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:470
                                                            • Integer#+ /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:470
                                                        • ActiveSupport::Logger#format_message /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:581
                                                          • ActiveSupport::Logger::SimpleFormatter#call $GemPath0/gems/activesupport-5.0.2/lib/active_support/tagged_logging.rb:20
                                                            • ActiveSupport::Logger::SimpleFormatter#tags_text $GemPath0/gems/activesupport-5.0.2/lib/active_support/tagged_logging.rb:51
                                                              • ActiveSupport::Logger::SimpleFormatter#current_tags $GemPath0/gems/activesupport-5.0.2/lib/active_support/tagged_logging.rb:45
                                                                • #<Class:Thread>#current $GemPath0/gems/activesupport-5.0.2/lib/active_support/tagged_logging.rb:48
                                                                • Thread#[] $GemPath0/gems/activesupport-5.0.2/lib/active_support/tagged_logging.rb:48
                                                              • Array#any? $GemPath0/gems/activesupport-5.0.2/lib/active_support/tagged_logging.rb:53
                                                            • NilClass#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/tagged_logging.rb:21
                                                            • ActiveSupport::Logger::SimpleFormatter#call $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger.rb:101
                                                              • Module#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger.rb:102
                                                        • Logger::LogDevice#write /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:684
                                                          • Logger::LogDevice#mon_synchronize /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:211
                                                            • Logger::LogDevice#mon_enter /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:185
                                                              • #<Class:Thread>#current /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:186
                                                              • Thread::Mutex#lock /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:187
                                                              • #<Class:Thread>#current /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:188
                                                            • Logger::LogDevice#block in write /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:686
                                                              • IO#write /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/logger.rb:695
                                                            • Logger::LogDevice#mon_exit /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:197
                                                              • Logger::LogDevice#mon_check_owner /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:247
                                                                • #<Class:Thread>#current /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:248
                                                              • Thread::Mutex#unlock /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:202
                                  • ActiveSupport::Notifications::Fanout#block in finish $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:46
                                    • ActiveSupport::Notifications::Fanout::Subscribers::Evented#finish $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:101
                                      • ActiveRecord::ExplainSubscriber#finish $GemPath0/gems/activerecord-5.0.2/lib/active_record/explain_subscriber.rb:10
                                        • ActiveRecord::ExplainRegistry.collect? $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:53
                                          • ActiveRecord::ExplainRegistry.instance $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:44
                                            • #<Class:Thread>#current $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:45
                                            • Thread#[] $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:45
                                          • ActiveRecord::ExplainRegistry#collect? $GemPath0/gems/activerecord-5.0.2/lib/active_record/explain_registry.rb:21
                      • ActiveRecord::ConnectionAdapters::RealTransaction#commit $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/transaction.rb:75
                        • ActiveRecord::ConnectionAdapters::TransactionState#set_state $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/transaction.rb:26
                          • Set#include? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/set.rb:232
                    • ActiveRecord::ConnectionAdapters::RealTransaction#commit_records $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/transaction.rb:83
                      • Array#uniq $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/transaction.rb:84
                      • Array#shift $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/transaction.rb:85
                      • Array#each $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/transaction.rb:94
            • ActiveRecord::ConnectionAdapters::TransactionState#committed? $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/transaction.rb:14
            • Article#clear_transaction_record_state $GemPath0/gems/activerecord-5.0.2/lib/active_record/transactions.rb:424
        • Article#clear_transaction_record_state $GemPath0/gems/activerecord-5.0.2/lib/active_record/transactions.rb:424
          • Article#force_clear_transaction_record_state $GemPath0/gems/activerecord-5.0.2/lib/active_record/transactions.rb:430
            • Hash#clear $GemPath0/gems/activerecord-5.0.2/lib/active_record/transactions.rb:431