this derivation will be built:
  /nix/store/z0i0hqf9bq52ng7kl0c6fmdfd9y0gn12-inputDerivation-effect-docs.drv
building '/nix/store/z0i0hqf9bq52ng7kl0c6fmdfd9y0gn12-inputDerivation-effect-docs.drv'...