在使用cargo add 添加rand的时候（cargo add rand)，报错：

Updating crates.io index
warning: spurious network error (3 tries remaining): [35] SSL connect error (Recv failure: Connection was reset)
warning: spurious network error (2 tries remaining): [35] SSL connect error (Recv failure: Connection was reset)
warning: spurious network error (1 tries remaining): [35] SSL connect error (Recv failure: Connection was reset)
error: download of config.json failed

Caused by:
  failed to download from `https://index.crates.io/config.json`

Caused by:
  [35] SSL connect error (Recv failure: Connection was reset)

可是在cmd中直接中鼠标点击https://index.crates.io/config.json时，浏览器可以直接下载该文件，请问下，这个如何解决，谢谢