rbx backtrace for devise issue

gistfile1.txt

actionpack (3.0.5) lib/abstract_controller/helpers.rb:153:in `modules_for_helpers'
kernel/bootstrap/array.rb:117:in `map!'
actionpack (3.0.5) lib/abstract_controller/helpers.rb:144:in `modules_for_helpers'
actionpack (3.0.5) lib/action_controller/metal/helpers.rb:101:in `modules_for_helpers'
actionpack (3.0.5) lib/abstract_controller/helpers.rb:97:in `helper'
devise (1.3.4) lib/devise/controllers/internal_helpers.rb:12:in `InternalHelpers'
kernel/common/eval.rb:199:in `class_eval (module_eval)'
activesupport (3.0.5) lib/active_support/concern.rb:52:in `append_features'
kernel/delta/module.rb:75:in `include'
kernel/common/array.rb:1492:in `reverse_each'
kernel/delta/module.rb:69:in `include'
devise (1.3.4) app/controllers/devise/sessions_controller.rb:3:in `__class_init__ (SessionsController)'
devise (1.3.4) app/controllers/devise/sessions_controller.rb:1:in `__script__'
kernel/common/kernel.rb:732:in `load'
activesupport (3.0.5) lib/active_support/dependencies.rb:454:in `load_file'
activesupport (3.0.5) lib/active_support/dependencies.rb:596:in `new_constants_in'
activesupport (3.0.5) lib/active_support/dependencies.rb:453:in `load_file'
activesupport (3.0.5) lib/active_support/dependencies.rb:340:in `require_or_load'
activesupport (3.0.5) lib/active_support/dependencies.rb:491:in `load_missing_constant'
activesupport (3.0.5) lib/active_support/dependencies.rb:183:in `const_missing'
kernel/bootstrap/array.rb:76:in `each'
activesupport (3.0.5) lib/active_support/dependencies.rb:181:in `rake_original_const_missing (const_missing)'
rake (0.9.2) lib/rake/ext/module.rb:36:in `const_missing'
config/application.rb:43:in `Application'
activesupport (3.0.5) lib/active_support/callbacks.rb:419:in `_run_prepare_callbacks'
actionpack (3.0.5) lib/action_dispatch/middleware/callbacks.rb:45:in `call'
activesupport (3.0.5) lib/active_support/callbacks.rb:415:in `_run_call_callbacks'
actionpack (3.0.5) lib/action_dispatch/middleware/callbacks.rb:44:in `call'
rack (1.2.2) lib/rack/sendfile.rb:107:in `call'
actionpack (3.0.5) lib/action_dispatch/middleware/remote_ip.rb:48:in `call'
actionpack (3.0.5) lib/action_dispatch/middleware/show_exceptions.rb:47:in `call'
railties (3.0.5) lib/rails/rack/logger.rb:13:in `call'
rack (1.2.2) lib/rack/runtime.rb:17:in `call'
activesupport (3.0.5) lib/active_support/cache/strategy/local_cache.rb:72:in `call'
rack (1.2.2) lib/rack/lock.rb:11:in `call'
/home/srdjan/.rvm/rubies/rbx-head/lib/thread.rb:119:in `synchronize'
rack (1.2.2) lib/rack/lock.rb:11:in `call'
actionpack (3.0.5) lib/action_dispatch/middleware/static.rb:30:in `call'
railties (3.0.5) lib/rails/application.rb:168:in `call'
railties (3.0.5) lib/rails/application.rb:77:in `call (method_missing)'
rack (1.2.2) lib/rack/lint.rb:48:in `_call'
rack (1.2.2) lib/rack/lint.rb:36:in `call'
rack (1.2.2) lib/rack/showexceptions.rb:24:in `call'
rack (1.2.2) lib/rack/commonlogger.rb:18:in `call'
unicorn (3.7.0) lib/unicorn/http_server.rb:546:in `process_client'
unicorn (3.7.0) lib/unicorn/http_server.rb:624:in `worker_loop'
kernel/bootstrap/array.rb:76:in `each'
unicorn (3.7.0) lib/unicorn/http_server.rb:622:in `worker_loop'
unicorn (3.7.0) lib/unicorn/http_server.rb:506:in `spawn_missing_workers'
kernel/common/process.rb:74:in `fork'
kernel/common/process.rb:704:in `fork'
unicorn (3.7.0) lib/unicorn/http_server.rb:504:in `spawn_missing_workers'
kernel/common/range.rb:164:in `each'
unicorn (3.7.0) lib/unicorn/http_server.rb:500:in `spawn_missing_workers'
unicorn (3.7.0) lib/unicorn/http_server.rb:513:in `maintain_worker_count'
unicorn (3.7.0) lib/unicorn/http_server.rb:163:in `start'
unicorn (3.7.0) lib/unicorn.rb:30:in `run'
unicorn (3.7.0) bin/unicorn:120:in `__script__'
kernel/common/kernel.rb:732:in `load'
/home/srdjan/.rvm/gems/rbx-head@rightpath/bin/unicorn:19:in `__script__'
kernel/delta/codeloader.rb:65:in `load_script'
kernel/delta/codeloader.rb:90:in `load_script'
kernel/loader.rb:617:in `script'
kernel/loader.rb:761:in `main'