fix case where unknown packets caused the next packet to not be handled properly

src/common/client.rs

@@ -98,8 +98,13 @@ impl<S, R> Client<S, R> where
             let pkt_data = self.incoming_data.drain(..pkt_len).collect::<Vec<_>>();
 
             trace!("[recv buf from {:?}] {:?}", self.id, pkt_data);
-            let pkt = R::from_bytes(&pkt_data[..pkt_size])
-                .map_err(|err| -> PacketNetworkError { err.into() })?;
+            let pkt = match R::from_bytes(&pkt_data[..pkt_size]) {
+                Ok(p) => p,
+                Err(err) => {
+                    warn!("error RecvServerPacket::from_bytes: {:?}", err);
+                    continue
+                },
+            };
 
             trace!("[recv from {:?}] {:?}", self.id, pkt);
             result.push(pkt);