chore: Fix routeguide example warning (#807)

examples/src/routeguide/client.rs

@@ -65,7 +65,8 @@ async fn run_route_chat(client: &mut RouteGuideClient<Channel>) -> Result<(), Bo
     let outbound = async_stream::stream! {
         let mut interval = time::interval(Duration::from_secs(1));
 
-        while let time = interval.tick().await {
+        loop {
+            let time = interval.tick().await;
             let elapsed = time.duration_since(start);
             let note = RouteNote {
                 location: Some(Point {

examples/src/uds/server.rs

@@ -50,7 +50,9 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
         let uds = UnixListener::bind(path)?;
 
         async_stream::stream! {
-            while let item = uds.accept().map_ok(|(st, _)| unix::UnixStream(st)).await {
+            loop {
+                let item = uds.accept().map_ok(|(st, _)| unix::UnixStream(st)).await;
+
                 yield item;
             }
         }