this derivation will be built:
  /nix/store/f660yc2r19alfdqj5hqfc7b1kx5p31q4-inputDerivation-effect-docs.drv
building '/nix/store/f660yc2r19alfdqj5hqfc7b1kx5p31q4-inputDerivation-effect-docs.drv'...