this derivation will be built:
  /nix/store/7n1cj63pzdp1mql09f5zs1qp4ww5f6lm-inputDerivation-effect-docs.drv
building '/nix/store/7n1cj63pzdp1mql09f5zs1qp4ww5f6lm-inputDerivation-effect-docs.drv'...