these 4 derivations will be built:
  /nix/store/15053s8s647j8ni9dnh8fzh2zcvkv4vm-test-script.drv
  /nix/store/gzdi7jig7rbn2dvwracihga3p8b05mx6-driverConfiguration.json.drv
  /nix/store/k5qb4bnkacf3prj7jy975jbiiaynkzsd-nixos-test-driver-iets-cachetest.drv
  /nix/store/7r5ywsn0fzi20sykvf8ghhcmv9jqxzpq-container-test-run-iets-cachetest.drv