Rust: Number Guesser

guesser.rs

extern crate rand;
use rand::Rng;
use std::cmp::Ordering;
use std::io::prelude::*;

enum GameResult {
	WON,
	LOST,
}

fn main() {
	let mut tries = 0;
	let mut game_result = GameResult::LOST;
	let secret_number = rand::thread_rng().gen_range(1, 101);

	loop {
		if tries >= 10 {
			break;
		}

		print!("Guess the number ({} tries left): ", 10 - tries);
		std::io::stdout().flush().expect("I/O error");

		let mut guess = String::new();
		std::io::stdin().read_line(&mut guess).expect("I/O error");
		let guess: usize = match guess.trim().parse() {
			Ok(n) => n,
			Err(_) => {
				println!("Please type a number!");
				continue;
			}
		};
		match guess.cmp(&secret_number) {
			Ordering::Less => println!("{}: too _small_", guess),
			Ordering::Greater => println!("{}: too BIG", guess),
			Ordering::Equal => {
				game_result = GameResult::WON;
				break;
			}
		};
		tries += 1
	}

	match game_result {
		GameResult::WON => println!("You won!"),
		GameResult::LOST => println!("You lost :( [the answer was {}]", secret_number),
	}
}