these 3 derivations will be built:
  /nix/store/6jbsyas7k6cx5zsd11zsjh8p5815vbwc-driverConfiguration.json.drv
  /nix/store/670b4pz5cqasliy09r0n93sixf61yx7g-nixos-test-driver-nix-grpc-store-acme-substituter.drv
  /nix/store/kbbd0ijd1ydd3w59hz0aimklcx9vmqwi-vm-test-run-nix-grpc-store-acme-substituter.drv