Get The Domain From A URL In Rust

```cargo
[dependencies]
url = "2.5.0"
```

use url::Url;

fn main() {
  let string = "https://www.example.com/";
  match Url::parse(string) {
    Ok(url) => println!("{}", url.host_str().unwrap()),
    Err(e) => println!("{}", e)
  }
}