these 4 derivations will be built:
  /nix/store/h9k3b1pc71nmyl7nwhyr90ny68c25ph9-iets-0.1.0.drv
  /nix/store/xbpcz3qqszh0hs561ysf5za0c2jypx2h-iets-fuzz-diff-0.0.0.drv
  /nix/store/bnas5zqfsd5655h7n74h2ja7byn0m10w-iets-conformance-adapter.drv
  /nix/store/42ji3hxh9rw9rvw43q8qjz71k49b2cgx-nix-conformance-iets.drv