Cleanup gnu test script

[jaggededgedjustice]

This fixes the last review comments from #1699

[sylvestre]

# TOTAL: 624
# PASS:  546
# SKIP:  62
# XFAIL: 0
# FAIL:  16
# XPASS: 0
# ERROR: 0

Are you sure you are really testing rust/coreutils?

[sylvestre]

That sounds too good to be true

[jaggededgedjustice]

I can't see how anything would be going wrong, posibly the make to generate getlimits is messing things up? I did test that adding that make command wouldn't affect the binaries in the uutils build dir, but then again locally running lib/configmake.h src/getlimits was enough to get it the executable while in github there was another file that needed to be generated. So there might be remnants in my local test environment that is changing the results.
I'll run some experiments to confirm that the uutils binaries are what's being testsed.

[tdulcet]

That sounds too good to be true

Yeah, something is not right. Most of the factor tests should fail, since they test numbers > 2⁶⁴ - 1, which uutils factor does not currently support (#1559). Only two are currently failing.

You may want to try increasing the ulimit -t command, as some of the tests should take longer then 60 seconds.

[jaggededgedjustice]

I have discovered my mistake. I was building uutils with cargo but that doesn't build all the individual binaries, so this is effectively testing the binaries that are installed on the system. After fixing this the tests just hang, a bit of digging indicates a fmt call was stuck in a read syscall which I assume is why the ulimit -t doesn't keep things moving.
I couldn't see an easy way to wrap individual tests with timeout, so I'll see if I can come up with a list of non-hanging tests.

[sylvestre]

@jaggededgedjustice ok, thanks for digging into that :)
Don't hesitate to report a bug about the fmt issue, we could just fix the problem

[sylvestre]

@jaggededgedjustice are you going to work on a fix to really use rust/coreutils?
Thanks

[jaggededgedjustice]

Still working on it, I hope I've found the last problem and it just needs testing. If things work out I should have a PR over the weekend.