these 5 derivations will be built:
  /nix/store/fwix1yw2p6wvr792vmq326rkjyfxfz1w-nix-grpc-e2e.drv
  /nix/store/j6rvnqr6rkp3ks7nqkfxmszlclkizr6n-test-script.drv
  /nix/store/45qjss6s3f21ibgwq7jdqizyhzpd2zvk-driverConfiguration.json.drv
  /nix/store/lcr3smvjh48m3g3nnr0cf5limkpq3fv9-nixos-test-driver-nix-grpc-farm.drv
  /nix/store/5xbm9jyyvvcaalcazk8xr5vrcxywfbna-vm-test-run-nix-grpc-farm.drv