perf(fake-tcp) reduce the number of clone() calls in hot path

phantun/src/bin/client.rs

@@ -108,6 +108,7 @@ async fn main() {
     } else {
         panic!("only IPv4 remote address is supported");
     };
+    info!("Remote address is: {}", remote_addr);
 
     let tun_local: Ipv4Addr = matches
         .value_of("tun_local")

phantun/src/bin/server.rs

@@ -77,6 +77,7 @@ async fn main() {
         .expect("bad remote address or host")
         .next()
         .expect("unable to resolve remote host name");
+    info!("Remote address is: {}", remote_addr);
 
     let tun_local: Ipv4Addr = matches
         .value_of("tun_local")