To compile the crate simply get the sources and perform use cargo to build it:

git clone https://github.com/vityafx/toornament-rs.git
cd toornament-rs/
cargo update;
cargo build --release;

To add as dependency you must add the line into your Cargo.toml:

[dependencies]
toornament = "*"

It will get the latest available toornament crate. However, if you want to publish your crate you must know the exact version and specify it in the [dependencies] section.

Check that you have everything installed correctly by compiling a minimal user-crate:

extern crate toornament;
use toornament::*;

fn main() {
    let toornament = Toornament::with_application("API_TOKEN",
                                                  "CLIENT_ID",
                                                  "CLIENT_SECRET").unwrap()
                                .timeout(5);

    // Listing all the tournaments
    println!("Tournaments: {:?}\n", toornament.tournaments(None, true));
}

Change API_TOKEN, CLIENT_ID, CLIENT_SECRET to yours and run the source with cargo run. If everything is good you will see all the tournaments available in the toornament.com service.