activerecord (4.0.3) lib/active_record/associations/has_many_association.rb:81:in `cached_counter_attribute_name'
activerecord (4.0.3) lib/active_record/associations/has_many_association.rb:77:in `has_cached_counter?'
activerecord (4.0.3) lib/active_record/associations/has_many_association.rb:85:in `update_counter'
activerecord (4.0.3) lib/active_record/associations/has_many_through_association.rb:66:in `insert_record'
activerecord (4.0.3) lib/active_record/autosave_association.rb:354:in `block in save_collection_association'
activerecord (4.0.3) lib/active_record/autosave_association.rb:345:in `each'
activerecord (4.0.3) lib/active_record/autosave_association.rb:345:in `save_collection_association'
activerecord (4.0.3) lib/active_record/autosave_association.rb:183:in `block in add_autosave_association_callbacks'
activerecord (4.0.3) lib/active_record/autosave_association.rb:153:in `instance_eval'
activerecord (4.0.3) lib/active_record/autosave_association.rb:153:in `block in define_non_cyclic_method'
activesupport (4.0.3) lib/active_support/callbacks.rb:443:in `_run__647002975070658364__create__callbacks'
activesupport (4.0.3) lib/active_support/callbacks.rb:80:in `run_callbacks'
activerecord (4.0.3) lib/active_record/callbacks.rb:306:in `create_record'
activerecord (4.0.3) lib/active_record/timestamp.rb:57:in `create_record'
activerecord (4.0.3) lib/active_record/persistence.rb:477:in `create_or_update'
activerecord (4.0.3) lib/active_record/callbacks.rb:302:in `block in create_or_update'
activesupport (4.0.3) lib/active_support/callbacks.rb:393:in `_run__647002975070658364__save__callbacks'
activesupport (4.0.3) lib/active_support/callbacks.rb:80:in `run_callbacks'
activerecord (4.0.3) lib/active_record/callbacks.rb:302:in `create_or_update'
activerecord (4.0.3) lib/active_record/persistence.rb:106:in `save'
activerecord (4.0.3) lib/active_record/validations.rb:51:in `save'
activerecord (4.0.3) lib/active_record/attribute_methods/dirty.rb:32:in `save'
activerecord (4.0.3) lib/active_record/transactions.rb:270:in `block (2 levels) in save'
activerecord (4.0.3) lib/active_record/transactions.rb:326:in `block in with_transaction_returning_status'
activerecord (4.0.3) lib/active_record/connection_adapters/abstract/database_statements.rb:202:in `block in transaction'
activerecord (4.0.3) lib/active_record/connection_adapters/abstract/database_statements.rb:210:in `within_new_transaction'
activerecord (4.0.3) lib/active_record/connection_adapters/abstract/database_statements.rb:202:in `transaction'
activerecord (4.0.3) lib/active_record/transactions.rb:209:in `transaction'
activerecord (4.0.3) lib/active_record/transactions.rb:323:in `with_transaction_returning_status'
activerecord (4.0.3) lib/active_record/transactions.rb:270:in `block in save'
activerecord (4.0.3) lib/active_record/transactions.rb:281:in `rollback_active_record_state!'
activerecord (4.0.3) lib/active_record/transactions.rb:269:in `save'
app/controllers/users_controller.rb:38:in `block in create'
actionpack (4.0.3) lib/action_controller/metal/mime_responds.rb:363:in `retrieve_collector_from_mimes'
actionpack (4.0.3) lib/action_controller/metal/mime_responds.rb:189:in `respond_to'
app/controllers/users_controller.rb:37:in `create'
actionpack (4.0.3) lib/action_controller/metal/implicit_render.rb:4:in `send_action'
actionpack (4.0.3) lib/abstract_controller/base.rb:189:in `process_action'
actionpack (4.0.3) lib/action_controller/metal/rendering.rb:10:in `process_action'
actionpack (4.0.3) lib/abstract_controller/callbacks.rb:18:in `block in process_action'
activesupport (4.0.3) lib/active_support/callbacks.rb:433:in `_run__2812164997626792305__process_action__callbacks'
activesupport (4.0.3) lib/active_support/callbacks.rb:80:in `run_callbacks'
actionpack (4.0.3) lib/abstract_controller/callbacks.rb:17:in `process_action'
actionpack (4.0.3) lib/action_controller/metal/rescue.rb:29:in `process_action'
actionpack (4.0.3) lib/action_controller/metal/instrumentation.rb:31:in `block in process_action'
activesupport (4.0.3) lib/active_support/notifications.rb:159:in `block in instrument'
activesupport (4.0.3) lib/active_support/notifications/instrumenter.rb:20:in `instrument'
activesupport (4.0.3) lib/active_support/notifications.rb:159:in `instrument'
actionpack (4.0.3) lib/action_controller/metal/instrumentation.rb:30:in `process_action'
actionpack (4.0.3) lib/action_controller/metal/params_wrapper.rb:245:in `process_action'
activerecord (4.0.3) lib/active_record/railties/controller_runtime.rb:18:in `process_action'
actionpack (4.0.3) lib/abstract_controller/base.rb:136:in `process'
actionpack (4.0.3) lib/abstract_controller/rendering.rb:44:in `process'
actionpack (4.0.3) lib/action_controller/metal.rb:195:in `dispatch'
actionpack (4.0.3) lib/action_controller/metal/rack_delegation.rb:13:in `dispatch'
actionpack (4.0.3) lib/action_controller/metal.rb:231:in `block in action'
actionpack (4.0.3) lib/action_dispatch/routing/route_set.rb:80:in `dispatch'
actionpack (4.0.3) lib/action_dispatch/routing/route_set.rb:48:in `call'
actionpack (4.0.3) lib/action_dispatch/journey/router.rb:71:in `block in call'
actionpack (4.0.3) lib/action_dispatch/journey/router.rb:59:in `each'
actionpack (4.0.3) lib/action_dispatch/journey/router.rb:59:in `call'
actionpack (4.0.3) lib/action_dispatch/routing/route_set.rb:680:in `call'
omniauth (1.3.1) lib/omniauth/strategy.rb:186:in `call!'
omniauth (1.3.1) lib/omniauth/strategy.rb:164:in `call'
omniauth (1.3.1) lib/omniauth/strategy.rb:186:in `call!'
omniauth (1.3.1) lib/omniauth/strategy.rb:164:in `call'
warden (1.2.6) lib/warden/manager.rb:35:in `block in call'
warden (1.2.6) lib/warden/manager.rb:34:in `catch'
warden (1.2.6) lib/warden/manager.rb:34:in `call'
rack (1.5.5) lib/rack/etag.rb:23:in `call'
rack (1.5.5) lib/rack/conditionalget.rb:35:in `call'
rack (1.5.5) lib/rack/head.rb:11:in `call'
actionpack (4.0.3) lib/action_dispatch/middleware/params_parser.rb:27:in `call'
actionpack (4.0.3) lib/action_dispatch/middleware/flash.rb:241:in `call'
rack (1.5.5) lib/rack/session/abstract/id.rb:225:in `context'
rack (1.5.5) lib/rack/session/abstract/id.rb:220:in `call'
actionpack (4.0.3) lib/action_dispatch/middleware/cookies.rb:486:in `call'
activerecord (4.0.3) lib/active_record/query_cache.rb:36:in `call'
activerecord (4.0.3) lib/active_record/connection_adapters/abstract/connection_pool.rb:626:in `call'
activerecord (4.0.3) lib/active_record/migration.rb:369:in `call'
actionpack (4.0.3) lib/action_dispatch/middleware/callbacks.rb:29:in `block in call'
activesupport (4.0.3) lib/active_support/callbacks.rb:373:in `_run__3836599898573662343__call__callbacks'
activesupport (4.0.3) lib/active_support/callbacks.rb:80:in `run_callbacks'
actionpack (4.0.3) lib/action_dispatch/middleware/callbacks.rb:27:in `call'
actionpack (4.0.3) lib/action_dispatch/middleware/reloader.rb:64:in `call'
actionpack (4.0.3) lib/action_dispatch/middleware/remote_ip.rb:76:in `call'
actionpack (4.0.3) lib/action_dispatch/middleware/debug_exceptions.rb:17:in `call'
actionpack (4.0.3) lib/action_dispatch/middleware/show_exceptions.rb:30:in `call'
railties (4.0.3) lib/rails/rack/logger.rb:38:in `call_app'
railties (4.0.3) lib/rails/rack/logger.rb:20:in `block in call'
activesupport (4.0.3) lib/active_support/tagged_logging.rb:67:in `block in tagged'
activesupport (4.0.3) lib/active_support/tagged_logging.rb:25:in `tagged'
activesupport (4.0.3) lib/active_support/tagged_logging.rb:67:in `tagged'
railties (4.0.3) lib/rails/rack/logger.rb:20:in `call'
actionpack (4.0.3) lib/action_dispatch/middleware/request_id.rb:21:in `call'
rack (1.5.5) lib/rack/methodoverride.rb:21:in `call'
rack (1.5.5) lib/rack/runtime.rb:17:in `call'
activesupport (4.0.3) lib/active_support/cache/strategy/local_cache.rb:83:in `call'
rack (1.5.5) lib/rack/lock.rb:17:in `call'
actionpack (4.0.3) lib/action_dispatch/middleware/static.rb:64:in `call'
rack (1.5.5) lib/rack/sendfile.rb:112:in `call'
railties (4.0.3) lib/rails/engine.rb:511:in `call'
railties (4.0.3) lib/rails/application.rb:97:in `call'
rack (1.5.5) lib/rack/content_length.rb:14:in `call'
thin (1.7.0) lib/thin/connection.rb:86:in `block in pre_process'
thin (1.7.0) lib/thin/connection.rb:84:in `catch'
thin (1.7.0) lib/thin/connection.rb:84:in `pre_process'
thin (1.7.0) lib/thin/connection.rb:53:in `process'
thin (1.7.0) lib/thin/connection.rb:39:in `receive_data'
eventmachine (1.2.1) lib/eventmachine.rb:194:in `run_machine'
eventmachine (1.2.1) lib/eventmachine.rb:194:in `run'
thin (1.7.0) lib/thin/backends/base.rb:73:in `start'
thin (1.7.0) lib/thin/server.rb:162:in `start'
rack (1.5.5) lib/rack/handler/thin.rb:16:in `run'
rack (1.5.5) lib/rack/server.rb:264:in `start'
railties (4.0.3) lib/rails/commands/server.rb:84:in `start'
railties (4.0.3) lib/rails/commands.rb:76:in `block in <top (required)>'
railties (4.0.3) lib/rails/commands.rb:71:in `tap'
railties (4.0.3) lib/rails/commands.rb:71:in `<top (required)>'
bin/rails:4:in `require'
bin/rails:4:in `<main>'