Add Tiger Bot to the list of "core builders" (builders which block the commit-queue when red) http://trac.webkit.org/browser/trunk/WebKitTools/Scripts/webkitpy/buildbot.py#L47 This is a master bug for tracking flakey tiger tests which block us from adding it to the list of builders which block the commit-queue and cause "bugzilla-tool land-diff" to error out when people try to land (unless they pass --ignore-builders). Once we don't have any flakiness issues with the Tiger bot, we'll add it to the list. :)