these 2 derivations will be built:
  /nix/store/968amkdc5hyvjdzyw785j7gf6dcjbxf5-herdr-0.9.1-vendor.drv
  /nix/store/zk2jn49pg0i8lhwl0bp0hwahrfvwkn7g-herdr-0.9.1.drv