these 6 derivations will be built:
  /nix/store/1m0vidkikvfacdmy9p7m27min02axija-iets-0.1.0.drv
  /nix/store/plv1npjl8sbdinfb4zqqwhjw74y7hq0w-closure-info.drv
  /nix/store/lxgpynnqn6f7q5pkdqlacc4md4gq7hhi-test-script.drv
  /nix/store/b5afsl9z8354i6r814kxz5bhzvppclil-driverConfiguration.json.drv
  /nix/store/5chxxji26zv3rhafn1gdl0dqs2d90v26-nixos-test-driver-iets-cachetest.drv
  /nix/store/amz2xh5rgzb085jmjf7jkhlr177a91pk-container-test-run-iets-cachetest.drv