build checks.x86_64-linux.shell

Reproduce this run
  1. 0.09 s $ /nix/store/9ypz3flqsrl5xl495mm8h645gadjsxi1-coreutils-9.11/bin/timeout --kill-after=15s 7200s /nix/store/23zk8sgzamrbmj1fday15szf7f2279s8-nix-2.34.7/bin/nix --extra-experimental-features nix-command --extra-experimental-features flakes --log-format internal-json build --no-link --print-out-paths git+https://github.com/NorfairKing/centjes?ref=refs%2Fpull%2F3%2Fmerge&rev=08e0d0908af5d906861b0fb8d1c8fbec600a0e95#checks.x86_64-linux.shell --print-build-logs
  2. 0.11 s warning: ignoring untrusted flake configuration setting 'extra-substituters'.
  3. 0.11 s Pass '--accept-flake-config' to trust it
  4. 0.11 s warning: ignoring untrusted flake configuration setting 'extra-trusted-public-keys'.
  5. 0.11 s Pass '--accept-flake-config' to trust it
  6. 5.46 s
  7. 5.66 s /nix/store/1ps8w3nl8xlcshp2g3xkrcvhpjwk19fz-centjes-shell
  8. 5.73 s Build succeeded.