these 2 derivations will be built:
  /nix/store/5piifkzgn0kw6iif24767wxhbk4bs94n-iets-fuzzers-0.0.0.drv
  /nix/store/pm2p3d5njjwxw11fnl5wiiwjncnrzh4x-iets-fuzz-drv-check.drv