these 2 derivations will be built:
  /nix/store/nxsj6p9q01918c9nb6gka7mxfqwhg79m-iets-fuzzers-0.0.0.drv
  /nix/store/8vi2xkpf66m21ld0jlv3var2rjp1kqld-iets-fuzz-parse-check.drv