Debugging Pre-Submit Test Failures

[Jeremy Wood]

I have a PR <https://github.com/openjdk/jdk/pull/8828> that is failing 
<https://github.com/mickleness/jdk/actions/runs/2367246796> some Linux 
pre-submit tests, but I don’t have a linux machine handy to test 
against.

I tried running the tests 3 times in case the failure was random, but it 
persists.

Any pointers on how to debug/resolve this? The error mentions:
# newfailures.txt
# other_errors.txt

Do those files explain the failures, and if so how do I access them?

If I can get to a place where I understand Java code that is failing I 
can probably solve that, but I could use some help making sense of this 
output.

Regards,
  - Jeremy