these 2 derivations will be built:
  /nix/store/nn66dvnwz3yq5bw6m18g46v447z16dqc-iets-deps-0.1.0.drv
  /nix/store/lkq9yhh7bi3hgmh9lfyzxhkqczfmyr23-iets-doc-0.1.0.drv