these 3 derivations will be built:
  /nix/store/4q56hk7f2525zp9q4dxr94q5gxzqzxkr-iets-fuzz-diff-0.0.0.drv
  /nix/store/8z7lniba78g3739xls7nkbg9ipn4cyij-iets-fuzzers-0.0.0.drv
  /nix/store/jhi22nq9q02zdmxpnwiqf2fw7p9hxwkq-iets-fuzz-drv-eval-check.drv