this derivation will be built:
  /nix/store/qx6lya8b75a4gjf8f6s4qdxjb73iy1n2-inputDerivation-effect-docs.drv
building '/nix/store/qx6lya8b75a4gjf8f6s4qdxjb73iy1n2-inputDerivation-effect-docs.drv'...