Handle bug that happens when a player leaves the game in an early stage

rust/sea_battle_backend/src/server.rs

@@ -131,6 +131,8 @@ async fn start_random(
     resp
 }
 pub async fn start_server(args: Args) -> std::io::Result<()> {
+    log::info!("Start to listen on {}", args.listen_address);
+
     let args_clone = args.clone();
 
     let dispatcher_actor = DispatcherActor::default().start();