this derivation will be built:
  /nix/store/kd2x8s0q0m5x86ffbbqy6ywx0s6y574h-inputDerivation-effect-docs.drv
building '/nix/store/kd2x8s0q0m5x86ffbbqy6ywx0s6y574h-inputDerivation-effect-docs.drv'...