these 3 derivations will be built:
  /nix/store/w7w5z6slf6hdh5v5jgywghhn9f62mz7k-driverConfiguration.json.drv
  /nix/store/4c5imypkc4d6nj9lf882ayrhxwswjyrr-nixos-test-driver-nix-grpc-farm.drv
  /nix/store/viiind79lgrmamkwr4132lmyrcj4rdb5-vm-test-run-nix-grpc-farm.drv