I got this message for this CL:

https://chromium-review.googlesource.com/c/439005/


The following build(s) failed:

rambi-pre-cq: The SetupBoard stage failed: (15, 'Received signal 15; shutting down') in https://luci-milo.appspot.com/buildbot/chromiumos.tryserver/pre_cq/17924

This failure was probably caused by your change.

Please check whether the failure is your fault. If your change is not at fault, you may mark it as ready again.

Commit queue documentation: http://www.chromium.org/developers/tree-sheriffs/sheriff-details-chromium-os/commit-queue-overview


The build is shown in purple.  Ideally this should be detected, and the CL given an automatic +1.