these 6 derivations will be built:
  /nix/store/d329753lcb0cmgrmmxqfbr5da87v47n6-iets-0.1.0.drv
  /nix/store/6pv79dcxmlz8w2ccagxc21p3npkjv86l-closure-info.drv
  /nix/store/h2jdx9n9kq0b7w93n9j8ib6q2bahv4lz-test-script.drv
  /nix/store/2pi2j15wga3106snqvc7hsi93cngx5cb-driverConfiguration.json.drv
  /nix/store/hq9cfbwkvfrl7mjw8himx8pmbds62fr8-nixos-test-driver-iets-cachetest.drv
  /nix/store/6cprzpg720gafwk7v2jljh2vna0vcdjn-container-test-run-iets-cachetest.drv