these 4 derivations will be built:
  /nix/store/1vmmr4k1qy2avmxlwfm02hb43skbzf19-test-script.drv
  /nix/store/wzp8v9lkhv1yc7lyqbhbj2znw7ri5bcf-driverConfiguration.json.drv
  /nix/store/nml2grqxqalmdyyxi5hnw12kd49igqv1-nixos-test-driver-iets-cachetest.drv
  /nix/store/51lni6qxjn98w8fjyi857a1c83f2cdn7-container-test-run-iets-cachetest.drv