=== DID THE UNLOCK ESCALATION EVER FIRE? ===
  'unlock --remove-all' in any argv: 0
  plain 'unlock' in any argv:        0

=== DID A LOCK EVER VANISH WHILE A CHECK WAS STILL RUNNING? ===
  samples: 58  with a lock: 43
  lock-vanished-under-a-live-check events: 0
  samples showing restore AND check running together: 0

=== a sample of the overlap, verbatim ===
