$ /nix/store/vzx1mi9c0xfadmsm9dhd83d005cb1qs9-coreutils-9.8/bin/timeout --kill-after=15s 7200s /nix/store/99b1z08awpxj8b6mzggn59gp1shljnff-nix-2.34.5/bin/nix --extra-experimental-features nix-command --extra-experimental-features flakes --log-format internal-json build --no-link git+https://github.com/NorfairKing/sydtest?ref=mutation-testing&rev=e46f74e2932ea4b75875c51de49c3347dd3f6438#checks.x86_64-linux.mutation-really-safe-money --print-build-logs warning: ignoring untrusted flake configuration setting 'extra-substituters'. Pass '--accept-flake-config' to trust it warning: ignoring untrusted flake configuration setting 'extra-trusted-public-keys'. Pass '--accept-flake-config' to trust it error (ignored): SQLite database '/var/cache/private/nix-ci-worker/eval-cache-v6/a70b1ca814186494d18d5e374babbb0ff85c072ecf72a6756c5e40ec639cf49f.sqlite' is busy  Downloading cached mutation-really-safe-money-assert from https://cache.staging.nix-ci.com Progress: 0 of 1 built, 1 of 1 downloaded from cache