Sample Rust Tokio library for an infinit loop

main.rs

use std::time::Duration;

async fn action() {
    loop {
        print!("Hello!");
        tokio::time::sleep(Duration::from_millis(1)).await;
    }
}


#[tokio::main]
async fn main() {
    println!("Hello, world!");

    let a = tokio::spawn(async{action().await;});

    tokio::time::sleep(Duration::from_secs(1)).await;

    a.abort();
    print!("STOPED!");
}