Presumably, you are here because you want to get Rust installed on your computer.
If you're a Rubyist, you're probably wanting to know what version manager you're going to have to install, whatever the Rust equivalent to rvm or rbenv is. And then you're going to want to know what hoops you're going to have to jump through in order to get Rust running on your computer.
The good news is that you'll be using rustup to do and manage everything.
The bad news is that I'm not going to be walking you through this.
You can find installation instructions for Linux, MacOS, and Windows here.