A CL passed moblab-generic-vm-pre-cq but then broke the tree in moblab-generic-vm-paladin

https://chromium-review.googlesource.com/c/chromiumos/infra/lucifer/+/1013138

http://cros-goldeneye/chromeos/healthmonitoring/buildDetails?buildbucketId=8946803689878789104

https://uberchromegw.corp.google.com/i/chromeos/builders/master-paladin/builds/18576
https://uberchromegw.corp.google.com/i/chromeos/builders/master-paladin/builds/18577