60.21 sfatal: unable to access 'https://gitlab.horizon-haskell.net/package-sets/horizon-advance/': The requested URL returned error: 504
60.22 snix-ci-eval: failed to evaluate flake: error:
60.22 s … while updating the lock file of flake 'git+https://github.com/NorfairKing/sydtest?ref=refs/pull/158/merge&rev=debe323fa6cf7d074405f7a40982441a1782a155&shallow=1'
60.22 s … while fetching the input 'git+https://gitlab.horizon-haskell.net/package-sets/horizon-advance?ref=refs/heads/lts/ghc-9.12.x&rev=fcb43e438bd603583b829a7330f4fe2a0a00f45e'