$ /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=bd4e6f5ba89397d3435281ac77574d3b3b0cb729#checks.x86_64-linux.mutation-opt-env-conf --print-build-logs[m
[33m[35;1mwarning:[0m ignoring untrusted flake configuration setting 'extra-substituters'.
Pass '--accept-flake-config' to trust it[m
[33m[35;1mwarning:[0m ignoring untrusted flake configuration setting 'extra-trusted-public-keys'.
Pass '--accept-flake-config' to trust it[m
[2m[m
[32mDownloading cached opt-env-conf-mutation-report from https://cache.staging.nix-ci.com[m
[2mProgress: 0 of 1 built, 1 of 1 downloaded from cache[m