these 2 derivations will be built:
  /nix/store/pxwq337w4hg8x494024mlazdc5mgm7pq-iets-fuzzers-0.0.0.drv
  /nix/store/k4f4lcx429pvykrwb6gc5fxw88f6cmd8-iets-fuzz-parse-check.drv