Error output when running sudo -u git -H bundle exec rake migrate_merge_requests RAILS_ENV=production --trace Trying to upgrade gitlab 5.0 to 5.1

gistfile1.txt

ubuntu@ip-10-0-2-44:/home/git/gitlab$ sudo -u git -H bundle exec rake migrate_merge_requests RAILS_ENV=production --trace
sudo: unable to resolve host ip-10-0-2-44
** Invoke migrate_merge_requests (first_time)
** Invoke environment (first_time)
** Execute environment
** Execute migrate_merge_requests
Since 5.1 old merge request serialization logic was replaced with a better one.
It makes old merge request diff invalid for GitLab 5.1+
* * *
This will rebuild commits/diffs info for existing merge requests.
You will lose merge request diff if its already merged.
Do you want to continue (yes/no)? yes
......................................................................................................................................................................................................................................................................................................................................................................................................................................................rake aborted!
invalid byte sequence in UTF-8
/usr/local/lib/ruby/1.9.1/syck/rubytypes.rb:148:in `is_complex_yaml?'
/usr/local/lib/ruby/1.9.1/syck/rubytypes.rb:170:in `to_yaml'
/usr/local/lib/ruby/1.9.1/syck/rubytypes.rb:18:in `node_export'
/usr/local/lib/ruby/1.9.1/syck/rubytypes.rb:18:in `add'
/usr/local/lib/ruby/1.9.1/syck/rubytypes.rb:18:in `block (3 levels) in to_yaml'
/usr/local/lib/ruby/1.9.1/syck/rubytypes.rb:17:in `each'
/usr/local/lib/ruby/1.9.1/syck/rubytypes.rb:17:in `block (2 levels) in to_yaml'
/usr/local/lib/ruby/1.9.1/syck/rubytypes.rb:16:in `map'
/usr/local/lib/ruby/1.9.1/syck/rubytypes.rb:16:in `block in to_yaml'
/usr/local/lib/ruby/1.9.1/syck.rb:401:in `call'
/usr/local/lib/ruby/1.9.1/syck.rb:401:in `emit'
/usr/local/lib/ruby/1.9.1/syck.rb:401:in `quick_emit'
/usr/local/lib/ruby/1.9.1/syck/rubytypes.rb:15:in `to_yaml'
/usr/local/lib/ruby/1.9.1/syck/rubytypes.rb:114:in `node_export'
/usr/local/lib/ruby/1.9.1/syck/rubytypes.rb:114:in `add'
/usr/local/lib/ruby/1.9.1/syck/rubytypes.rb:114:in `block (3 levels) in to_yaml'
/usr/local/lib/ruby/1.9.1/syck/rubytypes.rb:113:in `each'
/usr/local/lib/ruby/1.9.1/syck/rubytypes.rb:113:in `block (2 levels) in to_yaml'
/usr/local/lib/ruby/1.9.1/syck/rubytypes.rb:112:in `seq'
/usr/local/lib/ruby/1.9.1/syck/rubytypes.rb:16:in `block in to_yaml'
/usr/local/lib/ruby/1.9.1/syck.rb:401:in `call'
/usr/local/lib/ruby/1.9.1/syck.rb:401:in `emit'
/usr/local/lib/ruby/1.9.1/syck.rb:401:in `quick_emit'
/usr/local/lib/ruby/1.9.1/syck/rubytypes.rb:15:in `to_yaml'
/usr/local/lib/ruby/1.9.1/syck/rubytypes.rb:114:in `node_export'
/usr/local/lib/ruby/1.9.1/syck/rubytypes.rb:114:in `add'
/usr/local/lib/ruby/1.9.1/syck/rubytypes.rb:114:in `block (3 levels) in to_yaml'
/usr/local/lib/ruby/1.9.1/syck/rubytypes.rb:113:in `each'
/usr/local/lib/ruby/1.9.1/syck/rubytypes.rb:113:in `block (2 levels) in to_yaml'
/usr/local/lib/ruby/1.9.1/syck/rubytypes.rb:112:in `seq'
/usr/local/lib/ruby/1.9.1/syck/rubytypes.rb:112:in `block in to_yaml'
/usr/local/lib/ruby/1.9.1/syck.rb:401:in `call'
/usr/local/lib/ruby/1.9.1/syck.rb:401:in `emit'
/usr/local/lib/ruby/1.9.1/syck.rb:401:in `quick_emit'
/usr/local/lib/ruby/1.9.1/syck/rubytypes.rb:111:in `to_yaml'
/usr/local/lib/ruby/1.9.1/syck.rb:119:in `dump'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/activerecord-3.2.13/lib/active_record/coders/yaml_column.rb:18:in `dump'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/activerecord-3.2.13/lib/active_record/attribute_methods/serialization.rb:29:in `serialize'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/activerecord-3.2.13/lib/active_record/attribute_methods/serialization.rb:19:in `serialized_value'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/activerecord-3.2.13/lib/active_record/attribute_methods.rb:255:in `block in arel_attributes_values'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/activerecord-3.2.13/lib/active_record/attribute_methods.rb:249:in `each'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/activerecord-3.2.13/lib/active_record/attribute_methods.rb:249:in `arel_attributes_values'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/activerecord-3.2.13/lib/active_record/persistence.rb:355:in `update'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/activerecord-3.2.13/lib/active_record/locking/optimistic.rb:68:in `update'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/activerecord-3.2.13/lib/active_record/attribute_methods/dirty.rb:74:in `update'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/activerecord-3.2.13/lib/active_record/timestamp.rb:71:in `update'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/activerecord-3.2.13/lib/active_record/callbacks.rb:272:in `block in update'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.13/lib/active_support/callbacks.rb:403:in `_run__1702256111353478659__update__3399909461306904047__callbacks'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.13/lib/active_support/callbacks.rb:405:in `__run_callback'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.13/lib/active_support/callbacks.rb:385:in `_run_update_callbacks'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.13/lib/active_support/callbacks.rb:81:in `run_callbacks'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/activerecord-3.2.13/lib/active_record/callbacks.rb:272:in `update'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/activerecord-3.2.13/lib/active_record/persistence.rb:348:in `create_or_update'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/activerecord-3.2.13/lib/active_record/callbacks.rb:264:in `block in create_or_update'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.13/lib/active_support/callbacks.rb:459:in `block in _run__1702256111353478659__save__3399909461306904047__callbacks'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.13/lib/active_support/callbacks.rb:215:in `block in _conditional_callback_around_1120'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/state_machine-1.1.2/lib/state_machine/integrations/active_record.rb:480:in `block in around_save'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/state_machine-1.1.2/lib/state_machine/transition_collection.rb:149:in `block in run_actions'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/state_machine-1.1.2/lib/state_machine/transition_collection.rb:169:in `catch_exceptions'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/state_machine-1.1.2/lib/state_machine/transition_collection.rb:147:in `run_actions'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/state_machine-1.1.2/lib/state_machine/transition_collection.rb:132:in `run_callbacks'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/state_machine-1.1.2/lib/state_machine/transition_collection.rb:211:in `run_callbacks'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/state_machine-1.1.2/lib/state_machine/transition_collection.rb:63:in `block (2 levels) in perform'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/state_machine-1.1.2/lib/state_machine/transition_collection.rb:63:in `catch'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/state_machine-1.1.2/lib/state_machine/transition_collection.rb:63:in `block in perform'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/state_machine-1.1.2/lib/state_machine/transition_collection.rb:185:in `within_transaction'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/state_machine-1.1.2/lib/state_machine/transition_collection.rb:62:in `perform'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/state_machine-1.1.2/lib/state_machine/integrations/active_record.rb:480:in `around_save'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.13/lib/active_support/callbacks.rb:310:in `_callback_around_169'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.13/lib/active_support/callbacks.rb:214:in `_conditional_callback_around_1120'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.13/lib/active_support/callbacks.rb:403:in `_run__1702256111353478659__save__3399909461306904047__callbacks'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.13/lib/active_support/callbacks.rb:405:in `__run_callback'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.13/lib/active_support/callbacks.rb:385:in `_run_save_callbacks'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.13/lib/active_support/callbacks.rb:81:in `run_callbacks'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/activerecord-3.2.13/lib/active_record/callbacks.rb:264:in `create_or_update'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/activerecord-3.2.13/lib/active_record/persistence.rb:84:in `save'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/activerecord-3.2.13/lib/active_record/validations.rb:50:in `save'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/activerecord-3.2.13/lib/active_record/attribute_methods/dirty.rb:22:in `save'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/activerecord-3.2.13/lib/active_record/transactions.rb:259:in `block (2 levels) in save'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/activerecord-3.2.13/lib/active_record/transactions.rb:313:in `block in with_transaction_returning_status'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/activerecord-3.2.13/lib/active_record/connection_adapters/abstract/database_statements.rb:192:in `transaction'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/activerecord-3.2.13/lib/active_record/transactions.rb:208:in `transaction'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/activerecord-3.2.13/lib/active_record/transactions.rb:311:in `with_transaction_returning_status'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/activerecord-3.2.13/lib/active_record/transactions.rb:259:in `block in save'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/activerecord-3.2.13/lib/active_record/transactions.rb:270:in `rollback_active_record_state!'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/activerecord-3.2.13/lib/active_record/transactions.rb:258:in `save'
/home/git/gitlab/lib/tasks/migrate/migrate_mr.rake:13:in `block (2 levels) in <top (required)>'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/activerecord-3.2.13/lib/active_record/relation/batches.rb:21:in `block (2 levels) in find_each'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/activerecord-3.2.13/lib/active_record/relation/batches.rb:21:in `each'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/activerecord-3.2.13/lib/active_record/relation/batches.rb:21:in `block in find_each'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/activerecord-3.2.13/lib/active_record/relation/batches.rb:72:in `find_in_batches'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/activerecord-3.2.13/lib/active_record/relation/batches.rb:20:in `find_each'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/activerecord-3.2.13/lib/active_record/querying.rb:8:in `find_each'
/home/git/gitlab/lib/tasks/migrate/migrate_mr.rake:11:in `block in <top (required)>'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/rake-10.0.4/lib/rake/task.rb:246:in `call'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/rake-10.0.4/lib/rake/task.rb:246:in `block in execute'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/rake-10.0.4/lib/rake/task.rb:241:in `each'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/rake-10.0.4/lib/rake/task.rb:241:in `execute'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/rake-10.0.4/lib/rake/task.rb:184:in `block in invoke_with_call_chain'
/usr/local/lib/ruby/1.9.1/monitor.rb:201:in `mon_synchronize'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/rake-10.0.4/lib/rake/task.rb:177:in `invoke_with_call_chain'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/rake-10.0.4/lib/rake/task.rb:170:in `invoke'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/rake-10.0.4/lib/rake/application.rb:143:in `invoke_task'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/rake-10.0.4/lib/rake/application.rb:101:in `block (2 levels) in top_level'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/rake-10.0.4/lib/rake/application.rb:101:in `each'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/rake-10.0.4/lib/rake/application.rb:101:in `block in top_level'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/rake-10.0.4/lib/rake/application.rb:110:in `run_with_threads'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/rake-10.0.4/lib/rake/application.rb:95:in `top_level'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/rake-10.0.4/lib/rake/application.rb:73:in `block in run'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/rake-10.0.4/lib/rake/application.rb:160:in `standard_exception_handling'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/rake-10.0.4/lib/rake/application.rb:70:in `run'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/gems/rake-10.0.4/bin/rake:33:in `<top (required)>'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/bin/rake:23:in `load'
/home/git/gitlab/vendor/bundle/ruby/1.9.1/bin/rake:23:in `<main>'
Tasks: TOP => migrate_merge_requests