these 2 derivations will be built:
  /nix/store/fxbdb21mlixfd9535b9ccndml2n0ydlm-iets-deps-0.1.0.drv
  /nix/store/hyhf9cqrwfjvmxylnjx1ci5ih2dwd6kc-iets-doc-0.1.0.drv