these 6 derivations will be built:
  /nix/store/031gw4y07xax5i5phzzjg7m3scpkl5bj-iets-0.1.0.drv
  /nix/store/b14f7bgawlfqbdsvb2gw37g0cd4sb8ac-closure-info.drv
  /nix/store/zxiicxrajyzvk94zcjr584bivrqdndlp-test-script.drv
  /nix/store/gcw0pdkcnn1d2n3wk404ywgps2qlad01-driverConfiguration.json.drv
  /nix/store/29kvyrvgsl6v4a90gywailqcf1bq7rcl-nixos-test-driver-iets-cachetest.drv
  /nix/store/4wfabhgmrw8v8hj4pz4h783kw6jrnmzp-container-test-run-iets-cachetest.drv