these 6 derivations will be built:
  /nix/store/39mg30q9gbk004lwc1d7vali5yn077jk-iets-0.1.0.drv
  /nix/store/w5l8i54s34i4nqgrx23rlz7r7ikv9f2k-closure-info.drv
  /nix/store/bmvanssj8dzfykkgac1diaizlgydg7zb-test-script.drv
  /nix/store/wdd75l7h64dqbdqn05985z7kyx49dm7l-driverConfiguration.json.drv
  /nix/store/ask1xzccy4w4adnjixdigq5mpfmal0hh-nixos-test-driver-iets-cachetest.drv
  /nix/store/2vvqgbxnzcyz44x8hkkc0dmim1jfb771-container-test-run-iets-cachetest.drv