As far as I can tell, it looks like one of the clocks fell out of sync on the container runners, which caused the builds to fail. 

Also, as far I can tell from an initial look, it impacted the two patches Thomas cited.  Two patches that are running now (i.e. they don't have a full set of results yet, look like they are running on.  So, it was a transient issue.  Obviously we need to track down its root cause. I suspect something happened with NTP, which should be keeping the runners and bare metal systems synced.  I'm looking into that now.

For the patches with the failed jobs, we will queue those for rerun today.

Cheers,
Lincoln