this derivation will be built:
  /nix/store/k2y38j0w4864zf9zascdgwb8jgxbwkac-inputDerivation-effect-docs.drv
building '/nix/store/k2y38j0w4864zf9zascdgwb8jgxbwkac-inputDerivation-effect-docs.drv'...