VS Code/CLion + Rust

Extract rust_downloaded_use_rustup.7z and add to enverment vars:
Add %CARGO_HOME%\bin to PATH

Or download rustup-init.exe, install by network, then:
rustup toolchain install stable-x86_64-pc-windows-msvc
rustup component add rust-analysis --toolchain stable-x86_64-pc-windows-msvc
rustup component add rust-src --toolchain stable-x86_64-pc-windows-msvc
rustup component add rls --toolchain stable-x86_64-pc-windows-msvc

rustup toolchain install stable-i686-pc-windows-msvc
rustup component add rust-analysis --toolchain stable-i686-pc-windows-msvc
rustup component add rust-src --toolchain stable-i686-pc-windows-msvc
rustup component add rls --toolchain stable-i686-pc-windows-msvc

rustup toolchain install stable-x86_64-pc-windows-gnu
rustup component add rust-analysis --toolchain stable-x86_64-pc-windows-gnu
rustup component add rust-src --toolchain stable-x86_64-pc-windows-gnu
rustup component add rls --toolchain stable-x86_64-pc-windows-gnu

rustup toolchain install stable-i686-pc-windows-gnu
rustup component add rust-analysis --toolchain stable-i686-pc-windows-gnu
rustup component add rust-src --toolchain stable-i686-pc-windows-gnu
rustup component add rls --toolchain stable-i686-pc-windows-gnu

rustup show

1:Use VS Code
Install VS Code x64-1.46.1, extract vscode_plugin.7z to C:\Users\li\.vscode, 
Or install blow extensions online:
Rust for Visual Studio Code (powered by Rust Language Server/Rust Analyzer)
Better TOML

File - Preferences - Settings - Features - Debug:
Allow setting breakpoints in any file.

Terminal - Configure Tasks - Rust:Cargo build xxx:
copy content of "label", paste to blow "preLaunchTask"

Run - Start Debugging - C++ (Windows)
This should create and open launch.json, edit:
"preLaunchTask": "Rust: cargo build - xxx",
"program": "${workspaceRoot}/target/debug/${workspaceFolderBasename}.exe",
"externalConsole": true
If use MinGW, add:"miDebuggerPath": "D:/Qt/Qt5.14.2/Tools/mingw730_64/bin/gdb.exe",

Set breakpoint and press F5 to debug

Tips: msvc debugger looks better than gdb

2:Use CLion
rustup toolchain install stable-x86_64-pc-windows-gnu
rustup default stable-x86_64-pc-windows-gnu
rustup show
Download CLion-2020.1.2.exe, intellij-toml-, intellij-rust-
Install CLion and plugins
If direct launch CLion, error info will show in Setting - Languages - Rust - Standard Library:(Download via rustup), 
you need open VSCode, then will display same message - "Rust Src", click install
CLion debug Rust exe only support MinGW64, install and set Settings - Build - Toolchains - MinGW - Environment: D:\Qt\Qt5.14.2\Tools\mingw730_64
You can start debugging