these 6 derivations will be built:
  /nix/store/k29y59bs4q38gdbgnv5v6mgvlq1252ky-iets-0.1.0.drv
  /nix/store/539biakhljkpnvxqaj3b0mgkgv3hz00v-closure-info.drv
  /nix/store/x4ivgsv2gkxyrcmwqkhhc1qckjvs153c-test-script.drv
  /nix/store/x3bi6d5la3fv0yjhcb5h5wf8pmfrfvqb-driverConfiguration.json.drv
  /nix/store/d3fgrnv96l7r5hdw6xaa2hzckawrzd76-nixos-test-driver-iets-cachetest.drv
  /nix/store/zaim8zy03rq1parkbppzyrxspavxcj2w-container-test-run-iets-cachetest.drv