build checks.x86_64-linux.mutation-opt-env-conf

Reproduce this run
  1. 0.02 s $ /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=parallel-coverage-discovery&rev=de8477655acae40ec18f6fdc3b54f8786d588b5d#checks.x86_64-linux.mutation-opt-env-conf --print-build-logs
  2. 0.08 s warning: ignoring untrusted flake configuration setting 'extra-substituters'.
  3. 0.08 s Pass '--accept-flake-config' to trust it
  4. 0.08 s warning: ignoring untrusted flake configuration setting 'extra-trusted-public-keys'.
  5. 0.08 s Pass '--accept-flake-config' to trust it
  6. 0.54 s error (ignored): SQLite database '/var/cache/private/nix-ci-worker/eval-cache-v6/a8b1c18b60a90a5fb5e2bc0003dd068b09667912bd3cb3dc7c2051b552db2a33.sqlite' is busy
  7. 1.32 s
  8. 1.39 s Downloading cached opt-env-conf-test-0.0.0.4-report from https://cache.staging.nix-ci.com
  9. 1.44 s Progress: 0 of 1 built, 1 of 1 downloaded from cache