Type of Request
bug
Infrastructure Environment
LUCI and Firebase as far as I can tell.
What is happening?
The flutter/flutter tree is closed and there doesn't seem to be anything I can do about it:

I've tried restarting the tests from the dashboard (I can't, I get a 500 error from cocoon claiming I'm not signed in even though I am). I've tried poking at them from Luci (I can't, I don't have an account there). The logs don't seem to say anything useful either.
Steps to reproduce
No response
Expected results
No response