this derivation will be built:
  /nix/store/idjhcwncnvbxhwscy31jz9339zfj4zix-inputDerivation-effect-docs.drv
building '/nix/store/idjhcwncnvbxhwscy31jz9339zfj4zix-inputDerivation-effect-docs.drv'...