this derivation will be built:
  /nix/store/d2qsfd7qnww3kp0gcq0jx25n2hh6kymz-inputDerivation-effect-docs.drv
building '/nix/store/d2qsfd7qnww3kp0gcq0jx25n2hh6kymz-inputDerivation-effect-docs.drv'...