Coverage is not working if os module is used in test

[supercairos]

While running coverage on a pkg that use the os module, coverage is not outputed.

What version of rules_go are you using?

0.44.2

What version of gazelle are you using?

0.35.0

What version of Bazel are you using?

7.0.0

Does this issue reproduce with the latest releases of all the above?

Yes

What operating system and processor architecture are you using?

Darwin / arm64

What did you do?

Please see this repository for reproduction:
https://github.com/supercairos/bazelgoperfectcoverage

running
bazel coverage //... don't produce any coverage.

What did you expect to see?

Some coverage produced

What did you see instead?

No coverage produced

[fleblay]

Same problem here. Would be interested in a fix as well !

[fmeum]

The root cause isn't the import of os, it's specifically the call to os.Clearenv that results in rules_go's coverage handler writing the coverage file into the wrong location. I have a fix out at #3820.

[supercairos]

Thank you for your prompt fix!!