Go to: https://rustup.rs
e.g. curl https://sh.rustup.rs -sSf | sh
Follow the instructions.
Install VS Code (better fetch the official package) from: https://code.visualstudio.com/
Rust code completion and auto formatting: [Rust] TOML configuration files syntax highlighting: [Better TOML] LLDB debugging for Rust programs: [LLDB Debugger]