Code shared from the Rust Playground

playground.rs

#[warn(unused_variables)]
#[warn(unused_must_use)]
use std::thread;

fn main(){
    let mut c  = vec![];

    for i in 0..10{
        c.push(thread::spawn(move || {
             println!("thread number {}", i);
        }));
    }

    for _j in c {
        _j.join();
    }
}