these 2 derivations will be built:
  /nix/store/8d3xffragfmbsangjzb97ayrjh5d7ah3-iets-fuzzers-0.0.0.drv
  /nix/store/nmlapbf1qkns2fdb3ds9i1wppb74xp0f-iets-fuzz-parse-check.drv