Recently we had a builder renamed after we released a new version of the OS. Here's the change: https://go-review.googlesource.com/c/build/+/222517/
But it turns out now I'm getting a key error, so I'm wondering if I need a new key for the renamed builder (the old one isn't working):
2020/04/08 18:11:44 buildlet starting.
2020/04/08 18:11:44 Dialing coordinator farmer.golang.org:443 ...
2020/04/08 18:11:44 Dialed coordinator farmer.golang.org:443.
2020/04/08 18:11:44 Doing TLS handshake with coordinator (verifying hostname "farmer.golang.org")...
2020/04/08 18:11:45 Registering reverse mode with coordinator...
2020/04/08 18:11:45 Error dialing coordinator: coordinator registration failed; want HTTP status 101; got 412 Precondition Failed:
invalid build key