之前rust crates.io的官方源，国内访问特别忙，还经常超时。就换了中科大的源，但是不稳定，到了暑假就挂了。找到了国内阿里云的源，速度飞快。 vim ~/.cargo/config，打开后为
[source.crates-io]
registry = "https://github.com/rust-lang/crates.io-index"
增加上阿里云的源，变为
[source.crates-io]
registry = "https://github.com/rust-lang/crates.io-index"
replace-with = "rustcc"
[source.rustcc]
registry = "https://code.aliyun.com/rustcc/crates.io-index.git"
2019-08-08 02:17