these 3 derivations will be built:
  /nix/store/k3dypj0xhqsxrzygw57nyrkxsapbbkni-driverConfiguration.json.drv
  /nix/store/1flagfkjy1kzvw2b8agvj0w3iq6c4vyn-nixos-test-driver-nix-grpc-farm.drv
  /nix/store/cnqly4mrhc981rwpg4v2kgz9slkbzy0v-vm-test-run-nix-grpc-farm.drv