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ArgumentError: invalid byte sequence in UTF-8 #139

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azraai opened this issue Apr 13, 2013 · 4 comments
Closed

ArgumentError: invalid byte sequence in UTF-8 #139

azraai opened this issue Apr 13, 2013 · 4 comments

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@azraai
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azraai commented Apr 13, 2013

Hi.

I was trying to solve this problem for quite sometimes.
There error only happened on my production server but not my development machine with same data.

Here is my backtrace.

vendor/bundle/ruby/1.9.1/gems/psych-1.3.4/lib/psych/visitors/yaml_tree.rb:225:in `count'
vendor/bundle/ruby/1.9.1/gems/psych-1.3.4/lib/psych/visitors/yaml_tree.rb:225:in `binary?'
vendor/bundle/ruby/1.9.1/gems/psych-1.3.4/lib/psych/visitors/yaml_tree.rb:234:in `visit_String'
vendor/bundle/ruby/1.9.1/gems/psych-1.3.4/lib/psych/visitors/yaml_tree.rb:103:in `accept'
vendor/bundle/ruby/1.9.1/gems/psych-1.3.4/lib/psych/visitors/yaml_tree.rb:293:in `block in visit_Hash'
vendor/bundle/ruby/1.9.1/gems/psych-1.3.4/lib/psych/visitors/yaml_tree.rb:291:in `each'
vendor/bundle/ruby/1.9.1/gems/psych-1.3.4/lib/psych/visitors/yaml_tree.rb:291:in `visit_Hash'
vendor/bundle/ruby/1.9.1/gems/psych-1.3.4/lib/psych/visitors/yaml_tree.rb:103:in `accept'
vendor/bundle/ruby/1.9.1/gems/psych-1.3.4/lib/psych/visitors/yaml_tree.rb:67:in `push'
vendor/bundle/ruby/1.9.1/gems/psych-1.3.4/lib/psych.rb:242:in `dump'
vendor/bundle/ruby/1.9.1/gems/psych-1.3.4/lib/psych/core_ext.rb:14:in `psych_to_yaml'
vendor/bundle/ruby/1.9.1/gems/paper_trail-2.6.3/lib/paper_trail/has_paper_trail.rb:213:in `object_to_string'
vendor/bundle/ruby/1.9.1/gems/paper_trail-2.6.3/lib/paper_trail/has_paper_trail.rb:160:in `record_update'
vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.11/lib/active_support/callbacks.rb:407:in `_run__3320779173298705941__update__4036001397031892802__callbacks'
vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.11/lib/active_support/callbacks.rb:405:in `__run_callback'
vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.11/lib/active_support/callbacks.rb:385:in `_run_update_callbacks'
vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.11/lib/active_support/callbacks.rb:81:in `run_callbacks'
vendor/bundle/ruby/1.9.1/gems/activerecord-3.2.11/lib/active_record/callbacks.rb:272:in `update'
vendor/bundle/ruby/1.9.1/gems/activerecord-3.2.11/lib/active_record/persistence.rb:348:in `create_or_update'
vendor/bundle/ruby/1.9.1/gems/activerecord-3.2.11/lib/active_record/callbacks.rb:264:in `block in create_or_update'
vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.11/lib/active_support/callbacks.rb:469:in `_run__3320779173298705941__save__4036001397031892802__callbacks'
vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.11/lib/active_support/callbacks.rb:405:in `__run_callback'
vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.11/lib/active_support/callbacks.rb:385:in `_run_save_callbacks'
vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.11/lib/active_support/callbacks.rb:81:in `run_callbacks'
vendor/bundle/ruby/1.9.1/gems/activerecord-3.2.11/lib/active_record/callbacks.rb:264:in `create_or_update'
vendor/bundle/ruby/1.9.1/gems/activerecord-3.2.11/lib/active_record/persistence.rb:84:in `save'
vendor/bundle/ruby/1.9.1/gems/activerecord-3.2.11/lib/active_record/validations.rb:50:in `save'
vendor/bundle/ruby/1.9.1/gems/activerecord-3.2.11/lib/active_record/attribute_methods/dirty.rb:22:in `save'
vendor/bundle/ruby/1.9.1/gems/activerecord-3.2.11/lib/active_record/transactions.rb:259:in `block (2 levels) in save'
vendor/bundle/ruby/1.9.1/gems/activerecord-3.2.11/lib/active_record/transactions.rb:313:in `block in with_transaction_returning_status'
vendor/bundle/ruby/1.9.1/gems/activerecord-3.2.11/lib/active_record/connection_adapters/abstract/database_statements.rb:192:in `transaction'
vendor/bundle/ruby/1.9.1/gems/activerecord-3.2.11/lib/active_record/transactions.rb:208:in `transaction'
vendor/bundle/ruby/1.9.1/gems/activerecord-3.2.11/lib/active_record/transactions.rb:311:in `with_transaction_returning_status'
vendor/bundle/ruby/1.9.1/gems/activerecord-3.2.11/lib/active_record/transactions.rb:259:in `block in save'
vendor/bundle/ruby/1.9.1/gems/activerecord-3.2.11/lib/active_record/transactions.rb:270:in `rollback_active_record_state!'
vendor/bundle/ruby/1.9.1/gems/activerecord-3.2.11/lib/active_record/transactions.rb:258:in `save'
vendor/bundle/ruby/1.9.1/gems/activerecord-3.2.11/lib/active_record/persistence.rb:217:in `block in update_attributes'
vendor/bundle/ruby/1.9.1/gems/activerecord-3.2.11/lib/active_record/transactions.rb:313:in `block in with_transaction_returning_status'
vendor/bundle/ruby/1.9.1/gems/activerecord-3.2.11/lib/active_record/connection_adapters/abstract/database_statements.rb:192:in `transaction'
vendor/bundle/ruby/1.9.1/gems/activerecord-3.2.11/lib/active_record/transactions.rb:208:in `transaction'
vendor/bundle/ruby/1.9.1/gems/activerecord-3.2.11/lib/active_record/transactions.rb:311:in `with_transaction_returning_status'
vendor/bundle/ruby/1.9.1/gems/activerecord-3.2.11/lib/active_record/persistence.rb:215:in `update_attributes'
vendor/bundle/ruby/1.9.1/gems/inherited_resources-1.3.1/lib/inherited_resources/base_helpers.rb:78:in `update_resource'
vendor/bundle/ruby/1.9.1/gems/inherited_resources-1.3.1/lib/inherited_resources/actions.rb:45:in `update'
app/controllers/admin/documents_controller.rb:22:in `update'
vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.11/lib/action_controller/metal/implicit_render.rb:4:in `send_action'
vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.11/lib/abstract_controller/base.rb:167:in `process_action'
vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.11/lib/action_controller/metal/rendering.rb:10:in `process_action'
vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.11/lib/abstract_controller/callbacks.rb:18:in `block in process_action'
vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.11/lib/active_support/callbacks.rb:480:in `_run__1049249814261778128__process_action__2680946908806648429__callbacks'
vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.11/lib/active_support/callbacks.rb:405:in `__run_callback'
vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.11/lib/active_support/callbacks.rb:385:in `_run_process_action_callbacks'
vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.11/lib/active_support/callbacks.rb:81:in `run_callbacks'
vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.11/lib/abstract_controller/callbacks.rb:17:in `process_action'
vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.11/lib/action_controller/metal/rescue.rb:29:in `process_action'
vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.11/lib/action_controller/metal/instrumentation.rb:30:in `block in process_action'
vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.11/lib/active_support/notifications.rb:123:in `block in instrument'
vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.11/lib/active_support/notifications/instrumenter.rb:20:in `instrument'
vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.11/lib/active_support/notifications.rb:123:in `instrument'
vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.11/lib/action_controller/metal/instrumentation.rb:29:in `process_action'
vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.11/lib/action_controller/metal/params_wrapper.rb:207:in `process_action'
vendor/bundle/ruby/1.9.1/gems/activerecord-3.2.11/lib/active_record/railties/controller_runtime.rb:18:in `process_action'
vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.11/lib/abstract_controller/base.rb:121:in `process'
vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.11/lib/abstract_controller/rendering.rb:45:in `process'
vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.11/lib/action_controller/metal.rb:203:in `dispatch'
vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.11/lib/action_controller/metal/rack_delegation.rb:14:in `dispatch'
vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.11/lib/action_controller/metal.rb:246:in `block in action'
vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.11/lib/action_dispatch/routing/route_set.rb:73:in `call'
vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.11/lib/action_dispatch/routing/route_set.rb:73:in `dispatch'
vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.11/lib/action_dispatch/routing/route_set.rb:36:in `call'
vendor/bundle/ruby/1.9.1/gems/journey-1.0.4/lib/journey/router.rb:68:in `block in call'
vendor/bundle/ruby/1.9.1/gems/journey-1.0.4/lib/journey/router.rb:56:in `each'
vendor/bundle/ruby/1.9.1/gems/journey-1.0.4/lib/journey/router.rb:56:in `call'
vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.11/lib/action_dispatch/routing/route_set.rb:601:in `call'
vendor/bundle/ruby/1.9.1/gems/omniauth-1.1.1/lib/omniauth/strategy.rb:177:in `call!'
vendor/bundle/ruby/1.9.1/gems/omniauth-1.1.1/lib/omniauth/strategy.rb:157:in `call'
vendor/bundle/ruby/1.9.1/gems/omniauth-1.1.1/lib/omniauth/builder.rb:48:in `call'
vendor/bundle/ruby/1.9.1/gems/warden-1.2.1/lib/warden/manager.rb:35:in `block in call'
vendor/bundle/ruby/1.9.1/gems/warden-1.2.1/lib/warden/manager.rb:34:in `catch'
vendor/bundle/ruby/1.9.1/gems/warden-1.2.1/lib/warden/manager.rb:34:in `call'
vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.11/lib/action_dispatch/middleware/best_standards_support.rb:17:in `call'
vendor/bundle/ruby/1.9.1/gems/rack-1.4.3/lib/rack/etag.rb:23:in `call'
vendor/bundle/ruby/1.9.1/gems/rack-1.4.3/lib/rack/conditionalget.rb:35:in `call'
vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.11/lib/action_dispatch/middleware/head.rb:14:in `call'
vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.11/lib/action_dispatch/middleware/params_parser.rb:21:in `call'
vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.11/lib/action_dispatch/middleware/flash.rb:242:in `call'
vendor/bundle/ruby/1.9.1/gems/rack-1.4.3/lib/rack/session/abstract/id.rb:210:in `context'
vendor/bundle/ruby/1.9.1/gems/rack-1.4.3/lib/rack/session/abstract/id.rb:205:in `call'
vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.11/lib/action_dispatch/middleware/cookies.rb:341:in `call'
vendor/bundle/ruby/1.9.1/gems/activerecord-3.2.11/lib/active_record/query_cache.rb:64:in `call'
vendor/bundle/ruby/1.9.1/gems/activerecord-3.2.11/lib/active_record/connection_adapters/abstract/connection_pool.rb:479:in `call'
vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.11/lib/action_dispatch/middleware/callbacks.rb:28:in `block in call'
vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.11/lib/active_support/callbacks.rb:405:in `_run__1212725707803134744__call__4036001397031892802__callbacks'
vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.11/lib/active_support/callbacks.rb:405:in `__run_callback'
vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.11/lib/active_support/callbacks.rb:385:in `_run_call_callbacks'
vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.11/lib/active_support/callbacks.rb:81:in `run_callbacks'
vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.11/lib/action_dispatch/middleware/callbacks.rb:27:in `call'
vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.11/lib/action_dispatch/middleware/remote_ip.rb:31:in `call'
vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.11/lib/action_dispatch/middleware/debug_exceptions.rb:16:in `call'
vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.11/lib/action_dispatch/middleware/show_exceptions.rb:56:in `call'
vendor/bundle/ruby/1.9.1/gems/railties-3.2.11/lib/rails/rack/logger.rb:32:in `call_app'
vendor/bundle/ruby/1.9.1/gems/railties-3.2.11/lib/rails/rack/logger.rb:16:in `block in call'
vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.11/lib/active_support/tagged_logging.rb:22:in `tagged'
vendor/bundle/ruby/1.9.1/gems/railties-3.2.11/lib/rails/rack/logger.rb:16:in `call'
vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.11/lib/action_dispatch/middleware/request_id.rb:22:in `call'
vendor/bundle/ruby/1.9.1/gems/rack-1.4.3/lib/rack/methodoverride.rb:21:in `call'
vendor/bundle/ruby/1.9.1/gems/rack-1.4.3/lib/rack/runtime.rb:17:in `call'
vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.11/lib/active_support/cache/strategy/local_cache.rb:72:in `call'
vendor/bundle/ruby/1.9.1/gems/rack-1.4.3/lib/rack/lock.rb:15:in `call'
vendor/bundle/ruby/1.9.1/gems/rack-cache-1.2/lib/rack/cache/context.rb:136:in `forward'
vendor/bundle/ruby/1.9.1/gems/rack-cache-1.2/lib/rack/cache/context.rb:143:in `pass'
vendor/bundle/ruby/1.9.1/gems/rack-cache-1.2/lib/rack/cache/context.rb:155:in `invalidate'
vendor/bundle/ruby/1.9.1/gems/rack-cache-1.2/lib/rack/cache/context.rb:71:in `call!'
vendor/bundle/ruby/1.9.1/gems/rack-cache-1.2/lib/rack/cache/context.rb:51:in `call'
vendor/bundle/ruby/1.9.1/gems/railties-3.2.11/lib/rails/engine.rb:479:in `call'
vendor/bundle/ruby/1.9.1/gems/railties-3.2.11/lib/rails/application.rb:223:in `call'
vendor/bundle/ruby/1.9.1/gems/railties-3.2.11/lib/rails/railtie/configurable.rb:30:in `method_missing'
/usr/local/rvm/gems/ruby-1.9.3-p392/gems/passenger-3.0.19/lib/phusion_passenger/rack/request_handler.rb:96:in `process_request'
/usr/local/rvm/gems/ruby-1.9.3-p392/gems/passenger-3.0.19/lib/phusion_passenger/abstract_request_handler.rb:516:in `accept_and_process_next_request'
/usr/local/rvm/gems/ruby-1.9.3-p392/gems/passenger-3.0.19/lib/phusion_passenger/abstract_request_handler.rb:274:in `main_loop'
/usr/local/rvm/gems/ruby-1.9.3-p392/gems/passenger-3.0.19/lib/phusion_passenger/classic_rails/application_spawner.rb:321:in `start_request_handler'
/usr/local/rvm/gems/ruby-1.9.3-p392/gems/passenger-3.0.19/lib/phusion_passenger/classic_rails/application_spawner.rb:275:in `block in handle_spawn_application'
/usr/local/rvm/gems/ruby-1.9.3-p392/gems/passenger-3.0.19/lib/phusion_passenger/utils.rb:470:in `safe_fork'
/usr/local/rvm/gems/ruby-1.9.3-p392/gems/passenger-3.0.19/lib/phusion_passenger/classic_rails/application_spawner.rb:270:in `handle_spawn_application'
/usr/local/rvm/gems/ruby-1.9.3-p392/gems/passenger-3.0.19/lib/phusion_passenger/abstract_server.rb:357:in `server_main_loop'
/usr/local/rvm/gems/ruby-1.9.3-p392/gems/passenger-3.0.19/lib/phusion_passenger/abstract_server.rb:206:in `start_synchronously'
/usr/local/rvm/gems/ruby-1.9.3-p392/gems/passenger-3.0.19/lib/phusion_passenger/abstract_server.rb:180:in `start'
/usr/local/rvm/gems/ruby-1.9.3-p392/gems/passenger-3.0.19/lib/phusion_passenger/classic_rails/application_spawner.rb:149:in `start'
/usr/local/rvm/gems/ruby-1.9.3-p392/gems/passenger-3.0.19/lib/phusion_passenger/spawn_manager.rb:219:in `block (2 levels) in spawn_rails_application'
/usr/local/rvm/gems/ruby-1.9.3-p392/gems/passenger-3.0.19/lib/phusion_passenger/abstract_server_collection.rb:132:in `lookup_or_add'
/usr/local/rvm/gems/ruby-1.9.3-p392/gems/passenger-3.0.19/lib/phusion_passenger/spawn_manager.rb:214:in `block in spawn_rails_application'
/usr/local/rvm/gems/ruby-1.9.3-p392/gems/passenger-3.0.19/lib/phusion_passenger/abstract_server_collection.rb:82:in `block in synchronize'
<internal:prelude>:10:in `synchronize'
/usr/local/rvm/gems/ruby-1.9.3-p392/gems/passenger-3.0.19/lib/phusion_passenger/abstract_server_collection.rb:79:in `synchronize'
/usr/local/rvm/gems/ruby-1.9.3-p392/gems/passenger-3.0.19/lib/phusion_passenger/spawn_manager.rb:213:in `spawn_rails_application'
/usr/local/rvm/gems/ruby-1.9.3-p392/gems/passenger-3.0.19/lib/phusion_passenger/spawn_manager.rb:132:in `spawn_application'
/usr/local/rvm/gems/ruby-1.9.3-p392/gems/passenger-3.0.19/lib/phusion_passenger/spawn_manager.rb:275:in `handle_spawn_application'
/usr/local/rvm/gems/ruby-1.9.3-p392/gems/passenger-3.0.19/lib/phusion_passenger/abstract_server.rb:357:in `server_main_loop'
/usr/local/rvm/gems/ruby-1.9.3-p392/gems/passenger-3.0.19/lib/phusion_passenger/abstract_server.rb:206:in `start_synchronously'
/usr/local/rvm/gems/ruby-1.9.3-p392/gems/passenger-3.0.19/helper-scripts/passenger-spawn-server:99:in `<main>'

And the parameters

{"utf8"=>"✓",
 "_method"=>"put",
 "authenticity_token"=>"ZYhcdq9fgFjbKONgUS8mjTn3YuiyQFHBTF6LTxlQfGA=",
 "document"=>{"title"=>"Vehicle murabaha transactions in Middle Eastern countries.",
 "alternative_title"=>"",
 "description"=>"Murabaha is a particular kind of sale where seller expressly mentions the cost it has incurred on purchase of the Asset(s) to be sold and sells it to another person by adding some profit,
 which is known to buyer. Murabaha finance is not a loan given on interest,
 it is a sale of Asset(s) for cash/deferred price. It is the obligation of the seller to disclose the cost and profit to the buyer. Murabaha transaction can either be a cash sale (spot payment murabaha) or a credit sale (deferred payment murabaha) or a combination of both. Even though the transactions are widely used in the modern Islamic banking field,
 but the methodology and transactions are having slightly deferred to country to country without changing the core concept of murabaha as per the Maqasid Al Shariah.",
 "category_id"=>"183",
 "related_category_ids"=>["",
 "13"],
 "kind"=>"document",
 "type_id"=>"7",
 "authors_cache"=>"",
 "subjects_cache"=>"",
 "language"=>"English",
 "source"=>"INCEIF",
 "rights"=>"2011. Rahamathulla Theverthodi",
 "pages"=>"1,
2"},
 "commit"=>"Update Document",
 "id"=>"3667"}
@jduarte
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jduarte commented Jun 17, 2013

Hi there!

Where you able to get this solved? I'm getting the exact same problem

@tenderlove
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Member

Can you send some code to reproduce this issue? I will reopen if I can get a repro. Thank you!

@jduarte
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jduarte commented Nov 27, 2013

@tenderlove this issue happened in Apache + Passenger when a file that was non-UTF-8 was uploaded.

I cannot send you the code to reproduce the error because this error ocurred in the client environment and the project is now finished. I was able to bypass the error using Nginx + Unicorn.

Thanks!

@tinynumbers
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I know this is an old one but I'm having this same issue currently on a Ruby 2.0.0 / Rails 3.2.21 project.

Here's a simple case to reproduce - run the following in the Rails console:

Psych.dump({"STATE"=>"Reykjav\xEDk"})

Here's the stack trace:

ArgumentError: invalid byte sequence in UTF-8
  from /Users/dev/.rvm/rubies/ruby-2.0.0-p598/lib/ruby/2.0.0/psych/visitors/yaml_tree.rb:250:in `count'
  from /Users/dev/.rvm/rubies/ruby-2.0.0-p598/lib/ruby/2.0.0/psych/visitors/yaml_tree.rb:250:in `binary?'
  from /Users/dev/.rvm/rubies/ruby-2.0.0-p598/lib/ruby/2.0.0/psych/visitors/yaml_tree.rb:262:in `visit_String'
  from /Users/dev/.rvm/rubies/ruby-2.0.0-p598/lib/ruby/2.0.0/psych/visitors/yaml_tree.rb:128:in `accept'
  from /Users/dev/.rvm/rubies/ruby-2.0.0-p598/lib/ruby/2.0.0/psych/visitors/yaml_tree.rb:324:in `block in visit_Hash'
  from /Users/dev/.rvm/rubies/ruby-2.0.0-p598/lib/ruby/2.0.0/psych/visitors/yaml_tree.rb:322:in `each'
  from /Users/dev/.rvm/rubies/ruby-2.0.0-p598/lib/ruby/2.0.0/psych/visitors/yaml_tree.rb:322:in `visit_Hash'
  from /Users/dev/.rvm/rubies/ruby-2.0.0-p598/lib/ruby/2.0.0/psych/visitors/yaml_tree.rb:128:in `accept'
  from /Users/dev/.rvm/rubies/ruby-2.0.0-p598/lib/ruby/2.0.0/psych/visitors/yaml_tree.rb:92:in `push'
  from /Users/dev/.rvm/rubies/ruby-2.0.0-p598/lib/ruby/2.0.0/psych.rb:244:in `dump'
  from (irb):7

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@tenderlove @jduarte @azraai @tinynumbers