It looks like the underlying problem here is that testprog TimeProf (the binary TestTimePprof runs) timed out. The "failed to fetch any source profiles" is a follow-on failure because the binary didn't exit. There's not much information about the time-out, unfortunately. We may want to add in a GOTRACEBACK=crash just to get more details.
We've seen timeouts of TestTimePprof, but the tracebacks aren't useful
because goroutines are running on other threads. Add GOTRACEBACK=crash
to catch these in the future.
Trust: Austin Clements <email@example.com>
Run-TryBot: Austin Clements <firstname.lastname@example.org>
TryBot-Result: Go Bot <email@example.com>
Reviewed-by: Bryan C. Mills <firstname.lastname@example.org>