tweak server logging

src/bin/mgen-server.rs

@@ -65,7 +65,6 @@ async fn main() -> Result<(), Box<dyn Error>> {
 
     // Allow registering or reconnecting during the registration time.
     while let Ok(accepted) = timeout_at(reg_time, listener.accept()).await {
-        log!("foo");
         let stream = match accepted {
             Ok((stream, _)) => stream,
             Err(e) => {
@@ -84,6 +83,7 @@ async fn main() -> Result<(), Box<dyn Error>> {
         .await;
     }
 
+    log!("registration phase complete");
     // Notify all the listener threads that registration is over.
     phase_notify.notify_waiters();