21     let coll: Vec<u32> = stream::empty().collect().await;  in empty_vec()  localVariable
22     assert!(coll.is_empty());  in empty_vec()
27     let coll: Box<[u32]> = stream::empty().collect().await;  in empty_box_slice()  localVariable
28     assert!(coll.is_empty());  in empty_box_slice()
33     let coll: String = stream::empty::<&str>().collect().await;  in empty_string()  localVariable
34     assert!(coll.is_empty());  in empty_string()
39     let coll: Result<Vec<u32>, &str> = stream::empty().collect().await;  in empty_result()  localVariable
40     assert_eq!(Ok(vec![]), coll);  in empty_result()
60     let coll = assert_ready!(fut.poll());  in collect_vec_items()  localVariable
61     assert_eq!(vec![1, 2], coll);  in collect_vec_items()
82     let coll = assert_ready!(fut.poll());  in collect_string_items()  localVariable
83     assert_eq!("hello world", coll);  in collect_string_items()
104     let coll = assert_ready!(fut.poll());  in collect_str_items()  localVariable
105     assert_eq!("hello world", coll);  in collect_str_items()
126     let coll = assert_ready_ok!(fut.poll());  in collect_results_ok()  localVariable
127     assert_eq!("hello world", coll);  in collect_results_ok()