Possible transient failure in spinach tests
As seen in https://gitlab.com/gitlab-org/gitlab-ce/builds/9350663:
Feature: Dashboard Shortcuts
Scenario: Navigate to projects tab
! Given I sign in as a user # features/steps/shared/authentication.rb:7
~ And I visit dashboard page
~ Given I press "g" and "p"
~ Then the active main tab should be Projects
Request to 'http://127.0.0.1:44293/users/sign_in' failed to reach server, check DNS and/or server status
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/poltergeist-1.9.0/lib/capybara/poltergeist/browser.rb:351:in `command'
Scenario: Navigate to issue tab
! Given I sign in as a user # features/steps/shared/authentication.rb:7
~ And I visit dashboard page
~ Given I press "g" and "i"
~ Then the active main tab should be Issues
Request to 'http://127.0.0.1:44293/users/sign_in' failed to reach server, check DNS and/or server status
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/poltergeist-1.9.0/lib/capybara/poltergeist/browser.rb:351:in `command'
Scenario: Navigate to merge requests tab
! Given I sign in as a user # features/steps/shared/authentication.rb:7
~ And I visit dashboard page
~ Given I press "g" and "m"
~ Then the active main tab should be Merge Requests
Request to 'http://127.0.0.1:44293/users/sign_in' failed to reach server, check DNS and/or server status
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/poltergeist-1.9.0/lib/capybara/poltergeist/browser.rb:351:in `command'
[...]
bundler: failed to load command: spinach (/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/bin/spinach)
Module::DelegationError: MergeRequest#commits_count delegated to merge_request_diff.commits_count, but merge_request_diff is nil: #<MergeRequest id: 1, target_branch: "master", source_branch: "feature", source_project_id: 1, author_id: 4, assignee_id: nil, title: "Voluptatem alias ut facere dolores sapiente volupt...", created_at: "2017-01-26 22:08:45", updated_at: "2017-01-26 22:08:50", milestone_id: nil, state: "merged", merge_status: "can_be_merged", target_project_id: 1, iid: 1, description: nil, position: 0, locked_at: nil, updated_by_id: nil, merge_error: nil, merge_params: {}, merge_when_build_succeeds: false, merge_user_id: nil, merge_commit_sha: "afcb8fd70dde3429c870c30592f4a220739f9ee0", deleted_at: nil, in_progress_merge_commit_sha: nil, lock_version: nil, title_html: "Voluptatem alias ut facere dolores sapiente volupt...", description_html: nil, time_estimate: 0>
/builds/gitlab-org/gitlab-ce/app/models/merge_request.rb:25:in `rescue in commits_count'
/builds/gitlab-org/gitlab-ce/app/models/merge_request.rb:25:in `commits_count'
/builds/gitlab-org/gitlab-ce/app/controllers/projects/merge_requests_controller.rb:508:in `define_show_vars'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/activesupport-4.2.7.1/lib/active_support/callbacks.rb:432:in `block in make_lambda'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/activesupport-4.2.7.1/lib/active_support/callbacks.rb:145:in `block in halting_and_conditional'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/activesupport-4.2.7.1/lib/active_support/callbacks.rb:504:in `block in call'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/activesupport-4.2.7.1/lib/active_support/callbacks.rb:504:in `each'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/activesupport-4.2.7.1/lib/active_support/callbacks.rb:504:in `call'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/activesupport-4.2.7.1/lib/active_support/callbacks.rb:92:in `__run_callbacks__'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/activesupport-4.2.7.1/lib/active_support/callbacks.rb:778:in `_run_process_action_callbacks'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/activesupport-4.2.7.1/lib/active_support/callbacks.rb:81:in `run_callbacks'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/actionpack-4.2.7.1/lib/abstract_controller/callbacks.rb:19:in `process_action'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/actionpack-4.2.7.1/lib/action_controller/metal/rescue.rb:29:in `process_action'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/actionpack-4.2.7.1/lib/action_controller/metal/instrumentation.rb:32:in `block in process_action'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/activesupport-4.2.7.1/lib/active_support/notifications.rb:164:in `block in instrument'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/activesupport-4.2.7.1/lib/active_support/notifications/instrumenter.rb:20:in `instrument'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/activesupport-4.2.7.1/lib/active_support/notifications.rb:164:in `instrument'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/actionpack-4.2.7.1/lib/action_controller/metal/instrumentation.rb:30:in `process_action'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/actionpack-4.2.7.1/lib/action_controller/metal/params_wrapper.rb:250:in `process_action'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/activerecord-4.2.7.1/lib/active_record/railties/controller_runtime.rb:18:in `process_action'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/actionpack-4.2.7.1/lib/abstract_controller/base.rb:137:in `process'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/actionview-4.2.7.1/lib/action_view/rendering.rb:30:in `process'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/actionpack-4.2.7.1/lib/action_controller/metal.rb:196:in `dispatch'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/actionpack-4.2.7.1/lib/action_controller/metal/rack_delegation.rb:13:in `dispatch'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/actionpack-4.2.7.1/lib/action_controller/metal.rb:237:in `block in action'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/actionpack-4.2.7.1/lib/action_dispatch/routing/route_set.rb:74:in `dispatch'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/actionpack-4.2.7.1/lib/action_dispatch/routing/route_set.rb:43:in `serve'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/actionpack-4.2.7.1/lib/action_dispatch/routing/mapper.rb:49:in `serve'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/actionpack-4.2.7.1/lib/action_dispatch/journey/router.rb:43:in `block in serve'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/actionpack-4.2.7.1/lib/action_dispatch/journey/router.rb:30:in `each'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/actionpack-4.2.7.1/lib/action_dispatch/journey/router.rb:30:in `serve'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/actionpack-4.2.7.1/lib/action_dispatch/routing/route_set.rb:817:in `call'
/builds/gitlab-org/gitlab-ce/lib/gitlab/middleware/multipart.rb:93:in `call'
/builds/gitlab-org/gitlab-ce/lib/gitlab/request_profiler/middleware.rb:15:in `call'
/builds/gitlab-org/gitlab-ce/lib/gitlab/middleware/go.rb:16:in `call'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/warden-1.2.6/lib/warden/manager.rb:35:in `block in call'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/warden-1.2.6/lib/warden/manager.rb:34:in `catch'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/warden-1.2.6/lib/warden/manager.rb:34:in `call'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/rack-cors-0.4.0/lib/rack/cors.rb:80:in `call'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/rack-attack-4.4.1/lib/rack/attack.rb:107:in `call'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/rack-1.6.5/lib/rack/etag.rb:24:in `call'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/rack-1.6.5/lib/rack/conditionalget.rb:25:in `call'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/rack-1.6.5/lib/rack/head.rb:13:in `call'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/actionpack-4.2.7.1/lib/action_dispatch/middleware/params_parser.rb:27:in `call'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/actionpack-4.2.7.1/lib/action_dispatch/middleware/flash.rb:260:in `call'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/rack-1.6.5/lib/rack/session/abstract/id.rb:225:in `context'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/rack-1.6.5/lib/rack/session/abstract/id.rb:220:in `call'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/actionpack-4.2.7.1/lib/action_dispatch/middleware/cookies.rb:560:in `call'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/activerecord-4.2.7.1/lib/active_record/query_cache.rb:36:in `call'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/activerecord-4.2.7.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:653:in `call'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/actionpack-4.2.7.1/lib/action_dispatch/middleware/callbacks.rb:29:in `block in call'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/activesupport-4.2.7.1/lib/active_support/callbacks.rb:88:in `__run_callbacks__'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/activesupport-4.2.7.1/lib/active_support/callbacks.rb:778:in `_run_call_callbacks'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/activesupport-4.2.7.1/lib/active_support/callbacks.rb:81:in `run_callbacks'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/actionpack-4.2.7.1/lib/action_dispatch/middleware/callbacks.rb:27:in `call'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/actionpack-4.2.7.1/lib/action_dispatch/middleware/reloader.rb:73:in `call'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/actionpack-4.2.7.1/lib/action_dispatch/middleware/remote_ip.rb:78:in `call'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/actionpack-4.2.7.1/lib/action_dispatch/middleware/debug_exceptions.rb:17:in `call'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/actionpack-4.2.7.1/lib/action_dispatch/middleware/show_exceptions.rb:30:in `call'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/railties-4.2.7.1/lib/rails/rack/logger.rb:38:in `call_app'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/railties-4.2.7.1/lib/rails/rack/logger.rb:20:in `block in call'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/activesupport-4.2.7.1/lib/active_support/tagged_logging.rb:68:in `block in tagged'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/activesupport-4.2.7.1/lib/active_support/tagged_logging.rb:26:in `tagged'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/activesupport-4.2.7.1/lib/active_support/tagged_logging.rb:68:in `tagged'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/railties-4.2.7.1/lib/rails/rack/logger.rb:20:in `call'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/request_store-1.3.1/lib/request_store/middleware.rb:9:in `call'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/actionpack-4.2.7.1/lib/action_dispatch/middleware/request_id.rb:21:in `call'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/rack-1.6.5/lib/rack/methodoverride.rb:22:in `call'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/rack-1.6.5/lib/rack/runtime.rb:18:in `call'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/activesupport-4.2.7.1/lib/active_support/cache/strategy/local_cache_middleware.rb:28:in `call'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/rack-1.6.5/lib/rack/lock.rb:17:in `call'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/actionpack-4.2.7.1/lib/action_dispatch/middleware/static.rb:120:in `call'
/builds/gitlab-org/gitlab-ce/lib/gitlab/middleware/static.rb:9:in `call'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/rack-1.6.5/lib/rack/sendfile.rb:113:in `call'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/sentry-raven-2.0.2/lib/raven/integrations/rack.rb:50:in `call'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/railties-4.2.7.1/lib/rails/engine.rb:518:in `call'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/railties-4.2.7.1/lib/rails/application.rb:165:in `call'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/rack-1.6.5/lib/rack/urlmap.rb:66:in `block in call'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/rack-1.6.5/lib/rack/urlmap.rb:50:in `each'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/rack-1.6.5/lib/rack/urlmap.rb:50:in `call'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/capybara-2.6.2/lib/capybara/server.rb:19:in `call'
/builds/gitlab-org/gitlab-ce/vendor/ruby/2.3.0/gems/rack-1.6.5/lib/rack/handler/webrick.rb:88:in `service'
/usr/local/lib/ruby/2.3.0/webrick/httpserver.rb:140:in `service'
/usr/local/lib/ruby/2.3.0/webrick/httpserver.rb:96:in `run'
/usr/local/lib/ruby/2.3.0/webrick/server.rb:296:in `block in start_thread'
Retrying 2...
Retrying 1...
ERROR: Build failed: exit code 1
It's not clear to me what is the root cause here, though...