buildbot/buildbot — pull request #902 by patricklucas (2013-10-09 17:15:56+00:00)
Title: Ignore unavailable images for EC2 buildslaves

We ran into a problem where Buildbot tried to use an AMI produced by an automated process that was still 'pending'. This exposed a race condition in the get_image() code on EC2LatentBuildSlave. (stack trace to follow)