Merge df411fa7b7 into 2493d3c595

Co-authored-by: Jacob Rothstein <hi@jbr.me>
Signed-off-by: John Nunley <dev@notgull.net>

benches/bench.rs

@@ -6,13 +6,9 @@ const COUNT: usize = 8000;
 fn bench_events(c: &mut Criterion) {
     c.bench_function("notify_and_wait", |b| {
         let ev = Event::new();
+        let mut handles = Vec::with_capacity(COUNT);
         b.iter(|| {
-            let mut handles = Vec::with_capacity(COUNT);
-
-            for _ in 0..COUNT {
-                handles.push(ev.listen());
-            }
-
+            handles.extend(iter::repeat_with(|| ev.listen()).take(COUNT));
             ev.notify(COUNT);
 
             for handle in handles {