Sometimes the BDD tests are failing and the only error reported in the log is:
Timeout while retreaving DOM element (Exception)

(For instance in http://cilogs.ez.no/job/docker-behat-bundle-pr-PlatformUIBundle/535/behat.output.html)

It would be nice to provide more info when a test is failing. For instance, here the name/id/selector of the expected element would be helpful to see if it's a test issue or something which was broken by a change.