HEAD failed on DateUpgradePathTest this morning. It went away on a retest. I overheard someone mention this test the other day so I think it may be unstable:
I didn't find any existing core issues for this failure, just #1860778: Provide an upgrade path for date formats, so filing against testbot for now until someone can confirm.
|date_upgrade_path_test.png||15.42 KB||Ignored: Check issue status.||None||None|