tokio run_until bug

test.rs

use std::time::Duration;
use tokio::task::LocalSet;

fn main() {
    let mut builder = tokio::runtime::Builder::new_current_thread();
    let tokio = builder.enable_time().start_paused(true).build().unwrap();
    let local = LocalSet::new();

    let fut = async move {
        tokio::task::spawn_blocking(move || {
            dbg!();
            std::thread::sleep(Duration::from_secs(10));
            dbg!();
        });
        dbg!();
    };

    local.spawn_local(fut);

    tokio.block_on(async {
        local.run_until(async {
            dbg!();
            tokio::time::sleep(Duration::from_secs(1)).await;
            dbg!();
        }).await;

        local.run_until(async {
            dbg!();
            tokio::time::sleep(Duration::from_secs(1)).await;
            dbg!();
        }).await;
        dbg!();


    });

    drop(tokio);
    dbg!();
}