these 3 derivations will be built:
  /nix/store/hhnnrcsx75psyb5bg40f9hpnigd26c5n-iets-fuzz-diff-0.0.0.drv
  /nix/store/myppc78ca9f9whridhf355szcbpzfh3i-iets-fuzzers-0.0.0.drv
  /nix/store/pgihvja0jh0cflfpvj6x9bfli2yx5w43-iets-fuzz-drv-check.drv