these 6 derivations will be built:
  /nix/store/xfwc6wrx5h5ag22vndkifp7lhy0qq6j9-iets-0.1.0.drv
  /nix/store/dzcp5i5pbf1hln8dqqv08gn44mcgcvs4-closure-info.drv
  /nix/store/vsahfd3nh1l4g5h5ypiky9nlr28lbl1b-test-script.drv
  /nix/store/c1gnx5a67c6307ixqhf2s3ajpw14d126-driverConfiguration.json.drv
  /nix/store/d58kk2sn0ypwrml96ab0vl5ss4dys3ii-nixos-test-driver-iets-cachetest.drv
  /nix/store/kzyg4xda8hq498y6ll2kq54p7z18jbw5-container-test-run-iets-cachetest.drv