these 3 derivations will be built:
  /nix/store/zzf6qlda3h5haajabd1vi7vwwkllk75c-driverConfiguration.json.drv
  /nix/store/jglh9fvmqw6lw2wbasx7d22bsa8fxq5h-nixos-test-driver-nix-grpc-store-main.drv
  /nix/store/9kax7rb68qlxamr6fghabyyhv44vlk6b-vm-test-run-nix-grpc-store-main.drv