tokio_lifetimes.rs

extern crate futures;
extern crate tokio;

use futures::future::lazy;
use tokio::executor::current_thread;

fn main() {
    let data = vec![1, 2, 3, 4, 5];
    current_thread::run(move |_| {
        for num in data.iter() {
            current_thread::spawn(lazy(move || {
                println!("printing {}", num);
                Ok(())
            }));
        }
    });
}