source-tarball nightly job is failing, again
It appears that the source-tarball job in the nightly pipeline is currently failing. For instance, in https://gitlab.haskell.org/ghc/ghc/-/jobs/1427169, we have
| Run Happy: _build/source-dist/ghc-9.7.20230326-src/ghc-9.7.20230326/utils/hpc/HpcParser.y => _build/source-dist/ghc-9.7.20230326-src/ghc-9.7.20230326/utils/hpc/HpcParser.hs
happy: _build/source-dist/ghc-9.7.20230326-src/ghc-9.7.20230326/utils/hpc/HpcParser.y: openFile: does not exist (No such file or directory)
Command line: /opt/toolchain/bin/happy -agc --strict _build/source-dist/ghc-9.7.20230326-src/ghc-9.7.20230326/utils/hpc/HpcParser.y -o _build/source-dist/ghc-9.7.20230326-src/ghc-9.7.20230326/utils/hpc/HpcParser.hs
===> Command failed with error code: 1