these 3 derivations will be built:
  /nix/store/255mdyzm46rp01qyw89xixgkm66qk4b8-iets-fuzz-diff-0.0.0.drv
  /nix/store/70rdgn9mf3py1avfzfz6c99zfnhv3lr0-iets-fuzzers-0.0.0.drv
  /nix/store/zck5madccilhpqcvn3jj9fr1pm2x3bvy-iets-fuzz-drv-check.drv