this derivation will be built:
  /nix/store/6y5c7rpprr7zlc0xj9n5wv4xy2rjw6xx-inputDerivation-effect-docs.drv
building '/nix/store/6y5c7rpprr7zlc0xj9n5wv4xy2rjw6xx-inputDerivation-effect-docs.drv'...