this derivation will be built:
  /nix/store/gx23l46pssgbjbfn2k3bfvmc1a8d5k9b-inputDerivation-effect-docs.drv
building '/nix/store/gx23l46pssgbjbfn2k3bfvmc1a8d5k9b-inputDerivation-effect-docs.drv'...