select {
	case <-ctx.Done():
		return ctx.Err()
	case maxConcurrentScannerSaves <- struct{}{}:
	}

	buf := bytebufferpool.Get()
	defer func() {
		<-maxConcurrentScannerSaves
		buf.Reset()
		bytebufferpool.Put(buf)
	}()

	if err := d.serializeTo(buf); err != nil {
		return err
	}

	save := func(name string, timeout time.Duration) error {