these 6 derivations will be built:
  /nix/store/y5dywn9znli4a7bb3licpfb6knccbmws-iets-0.1.0.drv
  /nix/store/kzf6yx7brpam380icm2vqm0gxjaljbaz-closure-info.drv
  /nix/store/6dhdmcm9lcsaabqd2zambfzzswvg44nw-test-script.drv
  /nix/store/g7h8np17rip2ms1zxmyq953z3fsnwy8y-driverConfiguration.json.drv
  /nix/store/0fag8m424776g7dnhs2xxcjhgylcps94-nixos-test-driver-iets-cachetest.drv
  /nix/store/s0f8f16rrf2qdswn2aa8kr9qanvwf76l-container-test-run-iets-cachetest.drv