these 4 derivations will be built:
  /nix/store/8ydb5av9pbb6rhbjc95z9cigqycckmk1-test-script.drv
  /nix/store/f4zh1b4rgqv3j3pxzdnrfm6qqbdzn1x5-driverConfiguration.json.drv
  /nix/store/ha7yqmk4qa2m21irihgaq7s7bd7rppm2-nixos-test-driver-nix-grpc-farm.drv
  /nix/store/wj2r3w7v0x05j0diyyhxal7s1fgn1x41-vm-test-run-nix-grpc-farm.drv