src/test/ui/async-await/issues/issue-54974.rs

// build-pass (FIXME(62277): could be check-pass?)
// edition:2018

use std::sync::Arc;

trait SomeTrait: Send + Sync + 'static {
    fn do_something(&self);
}

async fn my_task(obj: Arc<dyn SomeTrait>) {
    unimplemented!()
}

fn main() {}