these 4 derivations will be built:
  /nix/store/qqmqhh7fz0zrlf5yb8lqa5sakcf10hma-iets-fuzz-diff-0.0.0.drv
  /nix/store/y8hid4c327blnfjm71v2wvwld3v524d5-iets-0.1.0.drv
  /nix/store/3mxgggkv0fjjh1hx4xp2krk8vvqdfzsj-iets-conformance-adapter.drv
  /nix/store/15x3aam9z8cpq3w2za47zf663w84z58k-nix-conformance-iets.drv