if r.current.name, err = r.mr.ReadString(); err != nil {
		if err == io.EOF {
			err = io.ErrUnexpectedEOF
		}
		r.err = err
		return metaCacheEntry{}, err
	}
	r.current.metadata, err = r.mr.ReadBytes(r.current.metadata[:0])
	if err == io.EOF {
		err = io.ErrUnexpectedEOF
	}
	r.err = err
	return r.current, err
}

// next will read one entry from the stream.