these 6 derivations will be built:
  /nix/store/kdkxvgv9px0rrd0c57dp3i6m8dzahf7y-iets-0.1.0.drv
  /nix/store/4lp8xfkdm4whwkakzjqr5h1wh8dkhv3q-closure-info.drv
  /nix/store/djpwfk407v0rnwawgyn3yl9v5mf26ggb-test-script.drv
  /nix/store/rc18d90q0g2fl41lv4m46jpisykw838a-driverConfiguration.json.drv
  /nix/store/y5hqxha32d35gjzf5xnw9gws5k3f3zg7-nixos-test-driver-iets-cachetest.drv
  /nix/store/q100qpkgx0sk5zl2y3y8zhdz7slb7r2b-container-test-run-iets-cachetest.drv