Fatal: could not read Username for 'https://github.com'

Support Self-hosting
9

I have two self-hosted Discourse instances that are down at the moment. In the logs, I see lines like this:

I, [2026-09-03T06:02:41.640393 #80]  INFO -- : reaped unknown subprocess #<Process::Status: pid 3079826 exit 128>
I, [2026-09-03T06:03:10.006495 #80]  INFO -- : reaped unknown subprocess #<Process::Status: pid 3079864 exit 128>
I, [2026-09-03T06:03:10.394732 #80]  INFO -- : reaped unknown subprocess #<Process::Status: pid 3079871 exit 128>
E, [2026-09-03T06:03:10.518338 #722] ERROR -- : worker=0 gen=0 pid=722 timed out, exiting
I, [2026-09-03T06:03:10.530245 #722]  INFO -- : worker=0 gen=0 pid=722 exiting

The 128 exit code looks suspiciously like Git.

Could this be related? And if so, why would a failed GitHub lookup cause an instance to go down?