these 6 derivations will be built:
  /nix/store/gazgj7gwfc1kjzkwsrkhvqwh7kf9g8wc-iets-0.1.0.drv
  /nix/store/4b2xrqmwkx716qqrl7pdcbz5ds1diiwx-closure-info.drv
  /nix/store/jyr84ndsy5hjn8kcb25ijj6ba5v8g4kg-test-script.drv
  /nix/store/iq0kdrl1rjikkyfnrznsrsm1lp23zr9c-driverConfiguration.json.drv
  /nix/store/88jl14pbnls2wribfbp4n2rhfalasqz6-nixos-test-driver-iets-cachetest.drv
  /nix/store/8ngiy4gk3q98c6972qsii64ll9ra64ys-container-test-run-iets-cachetest.drv