these 6 derivations will be built:
  /nix/store/l71h95lnka6i4hi4x41qf0sy4n500720-iets-0.1.0.drv
  /nix/store/vn5l469kxf10lrjciyyjqswk2jnhw99b-closure-info.drv
  /nix/store/hji78r8bvx7siqlbcckjnsxcghvai8ci-test-script.drv
  /nix/store/6c6nqzs6ap4iwdb7y63jmvagljk3zljm-driverConfiguration.json.drv
  /nix/store/3hw54ys9ip40nh0fw2pkfwvpjnjfq8ka-nixos-test-driver-iets-grpc-e2e.drv
  /nix/store/43gvcjdq3zjzr81x8qxb2g0f0311hygj-container-test-run-iets-grpc-e2e.drv