# 安装rust
curl https://sh.rustup.rs -sSf | sh -s # 安装 ; 卸载: $HOME/.cargo/bin/rustup self uninstall
vi /root/.cargo/config
[registry]
index = "https://mirrors.ustc.edu.cn/crates.io-index/"
[source.crates-io]
registry = "https://github.com/rust-lang/crates.io-index"
replace-with = 'ustc'
[source.ustc]
registry = "https://mirrors.ustc.edu.cn/crates.io-index/"
rustup override set nightly-2018-01-12 # 安装指定版本
or
rustup default nightly #可以在stable的情况下 切换为每日更新版
source $HOME/.cargo/env
rustup --version
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