these 6 derivations will be built:
  /nix/store/9rv05pacgirajsqpa7ng8j3p0jrnzza3-iets-0.1.0.drv
  /nix/store/j9a0nkd8nm8mb6m550m2psghidlml21v-closure-info.drv
  /nix/store/g90pr1p9ws339hakg83ssl1f3jfp8lm8-test-script.drv
  /nix/store/7vzyx3r6r9wm3j4vqis7m8nl2blaqa2p-driverConfiguration.json.drv
  /nix/store/90s3lywk0lv5il90bfbplyds16h4sc6b-nixos-test-driver-iets-cachetest.drv
  /nix/store/ak9wlzy324zh9pr3nsr9nzw2jr12rgh2-container-test-run-iets-cachetest.drv