title: GitLab CI builds remains pending
body: <p>We recently started to use GitLab-CI on the <code>gitlab.com</code> free service.
  At first everything went fine, but now, seems like we can't build our project anymore. The builds are shown as <code>pending</code> and doesn't do anything.</p>
  
  <p>Here's what we have in our builds list:</p>
  
  <p><a href="https://i.stack.imgur.com/bDtCB.png" rel="noreferrer"><img src="https://i.stack.imgur.com/bDtCB.png" alt="builds"></a></p>
  
  <p>And if we check the details of a build:</p>
  
  <p><a href="https://i.stack.imgur.com/lTkHq.png" rel="noreferrer"><img src="https://i.stack.imgur.com/lTkHq.png" alt="details"></a></p>
  
  <p>As you might notice, in the list, each build is assigned to a runner id, but in the details page, the runner section is blank.</p>
  
  <p>At first, we thought it was just latency caused by <code>gitlab.com</code> ingrastructure, but it's really just stuck there...</p>
  
  <p>EDIT</p>
  
  <p>It's more than 1 year ago but I keep having notifications about this question. If I recall properly, the problem was due to GitLab itself. Follow the GitLab docs and make sure your setup is valid, and hope for the best !</p>