bugzilla.mozilla.org will be intermittently unavailable on Saturday, March 24th, from 16:00 until 20:00 UTC.
Right now, it looks like an intermittent issue (e.g. bug 1263471) and doesn't list the failures explicitly. We should improve the treeherder output so it's easy to identify why the job failed.
(fwiw, I think there was another bug on this but I can't find it)
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