these 6 derivations will be built:
  /nix/store/ff27mganc6yhpq8gdzxck2dnn7b9n4wy-iets-0.1.0.drv
  /nix/store/wzv7ijsxvgzyh4q8p08vk6wz986ja5w6-closure-info.drv
  /nix/store/4gmwplzz8ix4rz7hp7hd2w4218w69zfp-test-script.drv
  /nix/store/b219ycin0gk1pilygldq787288d0i19m-driverConfiguration.json.drv
  /nix/store/m3gg2mnqkbl11f739041l6hbnqqg8xyq-nixos-test-driver-iets-cachetest.drv
  /nix/store/a070yaq8dpqp0yfxk8lxpkssvbmndpdz-container-test-run-iets-cachetest.drv