CI build failures

[Ben Gamari]

ÉRDI Gergő <gergo at erdi.hu> writes:

> Hi,
>
> I'm seeing three build failures in CI:
>
Hi,

> 1. On perf-nofib, it fails with:
>
Don't worry about this one for the moment. This job is marked as
accepting of failure for a reason (hence the job state being an orange
exclamation mark rather than a red X).

> == make boot -j --jobserver-fds=3,4 --no-print-directory;
>   in /builds/cactus/ghc/nofib/real/smallpt
> ------------------------------------------------------------------------
> /builds/cactus/ghc/ghc/bin/ghc  -M -dep-suffix "" -dep-makefile .depend 
> -osuf o     -O2 -Wno-tabs -Rghc-timing -H32m -hisuf hi -packageunboxed-ref 
> -rtsopts smallpt.hs
> <command line>: cannot satisfy -package unboxed-ref
>      (use -v for more information)
>
> (e.g. https://gitlab.haskell.org/cactus/ghc/-/jobs/743141#L1465)
>
> 2. On validate-x86_64-darwin, pretty much every test fails because of the 
> following extra stderr output:
>
> +
> +<no location info>:
> +    warning: Couldn't figure out C compiler information!
> +             Make sure you're using GNU gcc, or clang
>
> (e.g. https://gitlab.haskell.org/cactus/ghc/-/jobs/743129#L3655)
>
Yes, this will be fixed by !6162 once I get it passing CI.

> 3. On validate-x86_64-linux-deb9-integer-simple, T11545 fails on memory 
> consumption:
>
> Unexpected stat failures:
>     perf/compiler/T11545.run  T11545 [stat decreased from x86_64-linux-deb9-integer-simple-validate baseline @ 
> 5f3991c7cab8ccc9ab8daeebbfce57afbd9acc33] (normal)
>
This test appears to be quite sensitive to environment. I suspect we
should further increase its acceptance window to avoid this sort of
spurious failure.

Cheers,

Cheers,

- Ben
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