return &gover.TooNewError{What: r.ModulePath() + "@" + version, GoVersion: goVers}
		}
	} else if !errors.Is(err, fs.ErrNotExist) {
		return err
	}

	dl, err := r.code.ReadZip(ctx, rev, subdir, codehost.MaxZipFile)
	if err != nil {
		return err
	}
	defer dl.Close()
	subdir = strings.Trim(subdir, "/")

	// Spool to local file.
	f, err := os.CreateTemp("", "go-codehost-")

		}

		if f.weSleep() {
			scannerSleeper.Sleep(ctx, dataScannerSleepPerFolder)
		}

		var existingFolders, newFolders []cachedFolder
		var foundObjects bool
		err := readDirFn(pathJoin(f.root, folder.name), func(entName string, typ os.FileMode) error {
			// Parse
			entName = pathClean(pathJoin(folder.name, entName))
			if entName == "" || entName == folder.name {
				if f.dataUsageScannerDebug {