these 3 derivations will be built:
  /nix/store/2m1yfc6hadg7h4m32mfm31pqkz43b3sq-driverConfiguration.json.drv
  /nix/store/4mxv429wj2p898n9akyliw05fgwxij1b-nixos-test-driver-nix-grpc-farm.drv
  /nix/store/n1dr4smlhq9f83npy9vc0z64j0s43shm-vm-test-run-nix-grpc-farm.drv