these 2 derivations will be built:
  /nix/store/l21yk1w68jbaf4l78wcqh2fjn600066m-nixos-test-driver-pg_hashids.drv
  /nix/store/k6zml7lpscwk9c0zp5nb2rj6nj7zzps0-vm-test-run-pg_hashids.drv