Make ping/pong rust example realtime

Change-Id: I9d1a639afe0b87dd9e303a70f9d3ed1989465139
Signed-off-by: James Kuszmaul <james.kuszmaul@bluerivertech.com>
diff --git a/aos/events/event_loop_runtime.rs b/aos/events/event_loop_runtime.rs
index fbce7c9..6bcca6a 100644
--- a/aos/events/event_loop_runtime.rs
+++ b/aos/events/event_loop_runtime.rs
@@ -1426,7 +1426,7 @@
 #[repr(transparent)]
 pub struct OnRun(Pin<Box<ffi::aos::OnRunForRust>>);
 
-impl Future for OnRun {
+impl Future for &'_ OnRun {
     type Output = ();
 
     fn poll(self: Pin<&mut Self>, _: &mut std::task::Context) -> Poll<()> {