these 2 derivations will be built:
  /nix/store/390adziqkv8y1i4l3fwp82fwd9mnazf2-iets-fuzzers-0.0.0.drv
  /nix/store/4mgi48pi3slna5qmvzx16a84jdfd8sa3-iets-fuzz-parse-check.drv