29         let mut buf = std::io::BufReader::new(&fd);  in main()
34         let mut buf = std::io::BufReader::new(&fd);  in main()
45     let svc = Routes::new(pb::echo_server::EchoServer::new(server)).prepare();  in main()
47     let http = Builder::new(TokioExecutor::new());  in main()
50     let tls_acceptor = TlsAcceptor::from(Arc::new(tls));  in main()
66             let mut certificates = Vec::new();  in main()
79             let svc = tower::ServiceBuilder::new()  in main()
80                 .add_extension(Arc::new(ConnInfo { addr, certificates }))  in main()
84                 TokioIo::new(conn),  in main()
85                 TowerToHyperService::new(  in main()
86                     svc.map_request(|req: http::Request<_>| req.map(Body::new)),  in main()
116         Ok(Response::new(EchoResponse { message }))  in unary_echo()