Travis CI无法解析我的小黄瓜`.feature`文件

我正在使用RSpec和Turnip（Cucumber的替代品，它也使用Gherkin语法）来测试我的Rails应用程序。

我的规格和验收测试在本地计算机上运行100％绿色。

josh@macbuech:~/Documents/Work/MuheimWebdesign/transition (master *)$ rake
[deprecated] I18n.enforce_available_locales will default to true in the future. If you really want to skip validation of your locale you can set I18n.enforce_available_locales = false to avoid this message.
/Users/josh/.rvm/rubies/ruby-2.0.0-p353/bin/ruby -S rspec ./spec/acceptance/users/confirm_registration.feature ./spec/acceptance/users/sign_in.feature ./spec/acceptance/users/sign_out.feature ./spec/acceptance/users/sign_up.feature ./spec/acceptance/users/user_edit.feature ./spec/acceptance/users/user_show.feature ./spec/cells/mini_hub_cell_spec.rb ./spec/controllers/dashboards_controller_spec.rb ./spec/models/user_spec.rb ./spec/routing/users_routing_spec.rb
[deprecated] I18n.enforce_available_locales will default to true in the future. If you really want to skip validation of your locale you can set I18n.enforce_available_locales = false to avoid this message.
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Finished in 1.89 seconds
30 examples, 0 failures

但是，当我让Travis CI运行它们时，芜菁接受测试失败：

https://travis-ci.org/jmuheim/transition/builds/17069121

/home/travis/build/jmuheim/transition/spec/acceptance/users/confirm_registration.feature:1: syntax error, unexpected ':', expecting end-of-input (SyntaxError)
Feature: Confirm registration
        ^
    from /home/travis/build/jmuheim/transition/vendor/bundle/ruby/2.0.0/gems/rspec-core-2.14.7/lib/rspec/core/configuration.rb:896:in `block in load_spec_files'
    from /home/travis/build/jmuheim/transition/vendor/bundle/ruby/2.0.0/gems/rspec-core-2.14.7/lib/rspec/core/configuration.rb:896:in `each'
    from /home/travis/build/jmuheim/transition/vendor/bundle/ruby/2.0.0/gems/rspec-core-2.14.7/lib/rspec/core/configuration.rb:896:in `load_spec_files'
    from /home/travis/build/jmuheim/transition/vendor/bundle/ruby/2.0.0/gems/rspec-core-2.14.7/lib/rspec/core/command_line.rb:22:in `run'
    from /home/travis/build/jmuheim/transition/vendor/bundle/ruby/2.0.0/gems/rspec-core-2.14.7/lib/rspec/core/runner.rb:80:in `run'
    from /home/travis/build/jmuheim/transition/vendor/bundle/ruby/2.0.0/gems/rspec-core-2.14.7/lib/rspec/core/runner.rb:17:in `block in autorun'

我暂时禁用了它们，现在构建通过了：

https://travis-ci.org/jmuheim/transition/builds/17074697

您知道.feature文件为什么会引起问题吗？他们似乎以某种方式被解析为错误，或者不被认为是小黄瓜。

感谢帮助。