title: Gitlab runner failure, HTTP 500 curl 22
body: <p>We had been having troubles with gitlab runner for couple of days now. Whenever we try to deploy a commit, we are getting the following error (it's the full log):</p>
  <blockquote>
  <p>Running with gitlab-runner 10.8.0 (079aad9e)   on LST GitLab Runner
  9db4eb2c Using Docker executor with image alpine:3.7 ...</p>
  <p>Pulling docker image alpine:3.7 ...</p>
  <p>Using docker image
  sha256:6d1ef012b5674ad8a127ecfa9b5e6f5178d171b90ee462846974177fd9bdd39f
  for alpine:3.7 ...</p>
  <p>Running on runner-9db4eb2c-project-2-concurrent-0
  via a7dcae9d7882...</p>
  <p>Fetching changes...</p>
  <p>HEAD is now at 142ba7a</p>
  <p>Merge
  branch '3378-new-payroll-export-lexware' into test</p>
  <p>error: RPC failed;
  HTTP 500 curl 22
  The requested URL returned error: 500 Internal Server Error</p>
  <p>fatal: The remote end hung up unexpectedly</p>
  <p>ERROR: Job failed:
  exit code 1</p>
  </blockquote>
  <p>It happens right after pulling docker image. We also tested it on different branches and different stages (we have test and deploy), all of them result with the same error.</p>
  <p>Not sure if it's relevant, but we also cannot preform pull request from git repository. It fails with following error:</p>
  <blockquote>
  <p>RPC failed; HTTP 500 curl 22 The requested URL returned error: 500
  Internal Server Error</p>
  <p>The remote end hung up unexpectedly</p>
  </blockquote>
  <p>We tried switching to SSH instead of HTTP, but this also didn't work.
  Could you please point us in right direction so we can solve it? What could be the problem here?</p>