these 6 derivations will be built:
  /nix/store/0d9xixykl9pb3y5ax95ggypg6685fsk9-iets-0.1.0.drv
  /nix/store/rrxnxcdkxg6ni6wfphcyn89a7mb75yqn-closure-info.drv
  /nix/store/0d4hgkwl4namasd9dl66llhfi7jfiy0m-test-script.drv
  /nix/store/w9dj7y2kf5rpn7kqgs5gvn38v59fsghs-driverConfiguration.json.drv
  /nix/store/0b2j81bpf56hwlhnc05sph0fl9sk5rjq-nixos-test-driver-iets-cachetest.drv
  /nix/store/wwhp9s21x0s27xk2g7w3cv214cnm2qjs-container-test-run-iets-cachetest.drv