$ /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=490b86530dfa034ab205f507878072bb190e6668#devShells.x86_64-linux.default --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-v6/57fe895611c91b12d5e52f9d49736db6b260d31e85e5f826fee015eca2ee1ae0.sqlite' is busy  Downloading cached genvalidity-sydtest-1.0.1.0-doc from https://cache.staging.nix-ci.com Downloading cached opt-env-conf-test-0.0.0.4-doc from https://cache.staging.nix-ci.com Progress: 0 of 1 built, 1 of 9 downloaded from cache (1 downloading) Downloading cached opt-env-conf-test from https://cache.staging.nix-ci.com Progress: 0 of 1 built, 2 of 9 downloaded from cache (1 downloading) Downloading cached genvalidity-sydtest from https://cache.staging.nix-ci.com Downloading cached genvalidity-sydtest-aeson-1.0.0.1-doc from https://cache.staging.nix-ci.com Progress: 0 of 1 built, 3 of 9 downloaded from cache (2 downloading) Progress: 0 of 1 built, 4 of 9 downloaded from cache (1 downloading) Downloading cached hoogle-with-packages from https://cache.staging.nix-ci.com Progress: 0 of 1 built, 5 of 9 downloaded from cache (1 downloading) Downloading cached genvalidity-sydtest-aeson from https://cache.staging.nix-ci.com Progress: 0 of 1 built, 6 of 9 downloaded from cache (1 downloading) Progress: 0 of 1 built, 7 of 9 downloaded from cache Downloading cached ghc-9.10.3-with-packages from https://cache.staging.nix-ci.com Progress: 0 of 1 built, 8 of 9 downloaded from cache Downloading cached sydtest-shell from https://cache.staging.nix-ci.com Progress: 0 of 1 built, 9 of 9 downloaded from cache