x/build/dashboard: linux-386-longtest log missing the failure reason

[bcmills]

https://build.golang.org/log/bcb53a27f560f5363c22056d02f2a968ca351370 is marked as a failure in the build dashboard:

However, the log doesn't indicate what failed: the log does not include the word FAIL or any output that includes a goroutine dump, timeout indication, or signal. (It looks like it might have either hung or crashed during the API check, but without a goroutine or process dump there is no clear way to diagnose the problem further.)

[bcmills]

CC @toothrot

[toothrot]

Thanks, that's odd. I'll see what I can find out about that particular build.

[bcmills]

Duplicate of #39349.