https://blog.wongcw.com/2020/01/21/%e5%be%ae%e8%bb%9f%e6%ad%a3%e5%bc%8f%e9%96%8b%e6%ba%90%e5%8f%97rust-%e5%95%9f%e7%99%bc%e7%9a%84%e6%96%b0%e7%b7%a8%e7%a8%8b%e8%aa%9e%e8%a8%80verona/