Rust Guessing Game

guessing_game.rs

use rand::{thread_rng, Rng};
use std::cmp::Ordering;
use std::io; // 0.8.5

fn main() {
  let mut rang = thread_rng();

  let guessed_number = rang.gen_range(0..=100);
  loop {
    let mut answer = String::new();

    match io::stdin().read_line(&mut answer) {
      Ok(_num) => println!("Thank you!"),
      Err(error) => println!("Error: {error}"),
    }

    let answer: u8 = answer.trim().parse().expect("Failed to Read input");

    match answer.cmp(&guessed_number) {
      Ordering::Less => println!("Too small!"),
      Ordering::Greater => println!("Too big!"),
      Ordering::Equal => {
        println!("You win!");
        break;
      }
    }
  }

  println!("number: {}", guessed_number);
}