these 6 derivations will be built:
  /nix/store/kdzgcpgi0q9q34i113yvfjkvqzwv0jmk-iets-0.1.0.drv
  /nix/store/8p7jngd3dcv5gvqhbdw53b0s0kc5kqfs-closure-info.drv
  /nix/store/c8l3c4b7swy1byla1yn6kkxx7nkb86la-test-script.drv
  /nix/store/h2l2vk9p3yzgfb78wf442mjylfa43np3-driverConfiguration.json.drv
  /nix/store/86qmpr0f7b0wwp95k8nva6a5rk9vdvaq-nixos-test-driver-iets-cachetest.drv
  /nix/store/wa11c9nijbwny7nxkpqixpcyvx84pfx5-container-test-run-iets-cachetest.drv