gitlab_ci - sidekiq.log

2014-02-28T22:51:29Z 3692 TID--9o3q42 ERROR: undefined method `first' for nil:NilClass
2014-02-28T22:51:29Z 3692 TID--9o3q42 ERROR: /home/gitlab_ci/gitlab-ci/vendor/bundle/ruby/2.0.0/gems/sidekiq-2.17.0/lib/sidekiq/scheduled.rb:35:in `block (3 levels) in poll'
2014-02-28T22:51:44Z 3692 TID--9o3q42 ERROR: undefined method `first' for nil:NilClass
2014-02-28T22:51:44Z 3692 TID--9o3q42 ERROR: /home/gitlab_ci/gitlab-ci/vendor/bundle/ruby/2.0.0/gems/sidekiq-2.17.0/lib/sidekiq/scheduled.rb:35:in `block (3 levels) in poll'

gitlab_ci - production.log
Started POST "//api/v1/builds/register.json" for 127.0.0.1 at 2014-02-28 22:51:37 +0000
Started POST "//api/v1/builds/register.json" for 127.0.0.1 at 2014-02-28 22:51:42 +0000


gitlab_ci_runners - nginx.log
xx.xx - - [28/Feb/2014:22:51:37 +0000] "POST //api/v1/builds/register.json HTTP/1.1" 404 27 "-" "-"
xx.xx - - [28/Feb/2014:22:51:42 +0000] "POST //api/v1/builds/register.json HTTP/1.1" 404 27 "-" "-"