these 4 derivations will be built:
  /nix/store/l8yzqrjn4a550w25jms8jn6ilf7bgvhw-iets-0.1.0.drv
  /nix/store/vk1fa4jq60v7wbbnwi3xam9v3h23x264-iets-fuzz-diff-0.0.0.drv
  /nix/store/86bfvdrr5dyh4ihl6nw22rx3vf4s11rs-iets-conformance-adapter.drv
  /nix/store/wljk8qfi7dbqyw6x9nksx6c5m6v8m98y-nix-conformance-iets.drv