ghcup install ghc 8.0.2 fails on Github Actions

[robx]

The CI action on github.com/PostgREST/configurator-pg is failing to install ghc-8.0.2, and I'm a bit stuck figuring out why.

I hope it's appropriate to report this here, happy to take it elsewhere if preferable.

• This worked in the past, it doesn't seem like code changes in the repositories caused this to fail
• Newer GHC versions install fine using with the same workflow
• The workflow is pretty barebones: https://github.com/PostgREST/configurator-pg/blob/master/.github/workflows/haskell.yml. The only thing that happens before the call to ghcup install ghc 8.0.2 is to check out the source repository.

Debug results so far:

• ghcup upgrade does nothing, already up-to-date
• I dumped the log files; they end with

Info: Installing GHC (this may take a while)
Debug: Running sh with arguments ["./configure","--prefix=/usr/local/.ghcup/ghc/8.0.2"]
Debug: Running gmake with arguments ["DESTDIR=/usr/local/.ghcup/tmp/ghcup-60ce8deb918b9668","install"]
Error: (https://errors.haskell.org/messages/GHCup-00841) Process "gmake" with arguments ["DESTDIR=/usr/local/.ghcup/tmp/ghcup-60ce8deb918b9668",
                                "install"] failed with exit code 2.

• gmake is available, version 4.3

More details:

• debug PR https://github.com/PostgREST/configurator-pg/pull/21
• failed run https://github.com/PostgREST/configurator-pg/actions/runs/7131635134/job/19420568108