these 6 derivations will be built:
  /nix/store/77z1basdihnq4ykpgj9farh2q4ymzlid-iets-0.1.0.drv
  /nix/store/g82dq1xx2gmq1vwirlvj5z97ja02jifi-closure-info.drv
  /nix/store/605xqg67ibvbl0xxy1zcimrnwqx7h7ri-test-script.drv
  /nix/store/vb44nyg68f76bfy969i2l5nlgma9g780-driverConfiguration.json.drv
  /nix/store/dsf6fkdidbllq3ffkqwk88c7cvk77zrv-nixos-test-driver-iets-cachetest.drv
  /nix/store/zz37s21mvx0ylz7ly7hnm06s7pvrlw5m-container-test-run-iets-cachetest.drv