linux

export RUSTUP_DIST_SERVER='https://mirrors.ustc.edu.cn/rust-static'
export RUSTUP_UPDATE_ROOT='https://mirrors.ustc.edu.cn/rust-static/rustup'

win32

$ENV:RUSTUP_DIST_SERVER='https://mirrors.ustc.edu.cn/rust-static' 
$ENV:RUSTUP_UPDATE_ROOT='https://mirrors.ustc.edu.cn/rust-static/rustup'

Rust安装升级国内源_rust