this derivation will be built:
  /nix/store/p2llj1daafdd5l7f91l9bfxfd3kfnqgl-inputDerivation-effect-docs.drv
building '/nix/store/p2llj1daafdd5l7f91l9bfxfd3kfnqgl-inputDerivation-effect-docs.drv'...