Rust is a systems programming language that runs blazingly fast, prevents segfaults, and guarantees thread safety.
For installation it's advised to use
rustup as it will (among other things)
allow you to switch between versions of Rust without having to download
$ brew install rustup
Use rustup to install the Rust compiler (rustc) and the Rust package manager (cargo).
To verify you can run:
$ rustc --version