60.19 sfatal: unable to access 'https://gitlab.horizon-haskell.net/package-sets/horizon-advance/': The requested URL returned error: 504
60.21 snix-ci-eval: failed to evaluate flake: error:
60.21 s … while updating the lock file of flake 'git+https://github.com/NorfairKing/sydtest?ref=refs/pull/155/merge&rev=5a2cbda15e94b823821d1621f34d63c31b5b297a&shallow=1'
60.21 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'