http://shortn/_H9WIdYHXUC should have some data, but it doesn't.

https://chromium-swarm.appspot.com/tasklist?c=name&c=state&c=created_ts&c=user&c=bot&f=state%3AEXPIRED&f=pool%3AChrome-perf&l=100&s=created_ts%3Adesc (screenshot attached) shows that some tasks are expiring, but nothing shows up in monarch.

We've seen a fair amount of expiring tasks on the perf waterfall, which show up as red (separate issue, but makes it harder to diagnose) and which lose us data. I'd like to at least have some manual monitoring on this, if not automated alerts.