Guessing Game from Rust book https://doc.rust-lang.org/book/ch02-00-guessing-game-tutorial.html

main.go

package main

import (
	"bufio"
	"fmt"
	"math/rand"
	"os"
	"strconv"
	"strings"
	"time"
)

func main() {
	rand.Seed(time.Now().UnixNano())

	fmt.Println("Guess the number!")

	// rust can generate range [1, 101). So in go we can fix this
	// by +1 after number was generated.
	secretNumber := rand.Intn(101) + 1

	fmt.Println("The secret number is:", secretNumber)

gameLoop:
	for {
		fmt.Println("Please input your guess")

		r := bufio.NewReader(os.Stdin)
		line, _, err := r.ReadLine()
		if err != nil {
			panic("Failed to read line")
		}
		guess, err := strconv.Atoi(strings.TrimSpace(string(line)))
		if err != nil {
			continue
		}
		fmt.Println("You guessed:", guess)

		switch {
		case guess < secretNumber:
			fmt.Println("Too small!")
		case guess > secretNumber:
			fmt.Println("Too big!")
		case guess == secretNumber:
			fmt.Println("You win!")
			// in Go, break statement can terminated switch execution. This can fix by adding label above of loop.
			break gameLoop
		}
	}
}

main.rs

use rand::Rng;
use std::cmp::Ordering;
use std::io;

fn main() {
    println!("Guess the number!");

    let secret_number = rand::thread_rng().gen_range(1, 101);

    println!("The secret number is: {}", secret_number);

    loop {
        println!("Please input your guess");

        let mut guess = String::new();
        io::stdin()
            .read_line(&mut guess)
            .expect("Failed to read line");

        let guess: u32 = match guess.trim().parse() {
            Ok(num) => num,
            Err(_) => continue,
        };

        println!("You guessed: {}", guess);

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