执行 vi ``$HOME/.cargo/config 添加

    中科大源：https://lug.ustc.edu.cn/wiki/mirrors/help/rust-crates/

    1. [source.crates-io]
    2. registry = "https://github.com/rust-lang/crates.io-index"
    3. replace-with = 'ustc'
    4. [source.ustc]
    5. registry = "git://mirrors.ustc.edu.cn/crates.io-index"

    清华源

    1. [source.crates-io]
    2. registry = "https://github.com/rust-lang/crates.io-index"
    4. replace-with = 'tuna'
    5. [source.tuna]
    6. registry = "https://mirrors.tuna.tsinghua.edu.cn/git/crates.io-index.git"
    8. #replace-with = 'ustc'
    9. #[source.ustc]
    10. #registry = "git://mirrors.ustc.edu.cn/crates.io-index"
    12. [net]
    13. git-fetch-with-cli = true