stable installed - rustc 1.44.1 (c7087fe00 2020-06-17)
# rustc --version
rustc 1.44.1 (c7087fe00 2020-06-17)
# cargo --version
cargo 1.44.1 (88ba85757 2020-06-11)
2020-05-07, rust version 1.43.1
(8d69840ab 2020-05-04
)
Rust 语言服务器RLSCargo 更改源Cargo 更改源
参考：
Rust 版本指南crates.io
