these 6 derivations will be built:
  /nix/store/djjrrk8cdfb4m5r1pih2gzhm7hazlcn9-iets-0.1.0.drv
  /nix/store/rhgb6xnhn1xgfhi8q4gzgp108khba4yc-closure-info.drv
  /nix/store/5szgdnsxarshy9y5jpw9qv7azyn0kf56-test-script.drv
  /nix/store/nxjm6md9dlcjrb7dsxi5bf6sp4952bqp-driverConfiguration.json.drv
  /nix/store/sahjbwy76r460n68gqqs9s8lsw42pj23-nixos-test-driver-iets-grpc-e2e.drv
  /nix/store/l5ydd3gkq03xmd4qg2rkjifyyi39bz7a-container-test-run-iets-grpc-e2e.drv