72         let mut hello_buf = [0u8; RUNNER_HELLO_SIZE];  in new()  localVariable
73         socket.read_exact(&mut hello_buf)?;  in new()
74         if &hello_buf[0..RUNNER_MAGIC_NUMBER.len()] != RUNNER_MAGIC_NUMBER.as_bytes() {  in new()
78         let runner_version = [hello_buf[i], hello_buf[i + 1], hello_buf[i + 2]];  in new()
83         let mut hello_buf = [0u8; BENCHMARK_HELLO_SIZE];  in new()  localVariable
84         hello_buf[0..BENCHMARK_MAGIC_NUMBER.len()]  in new()
87         hello_buf[i] = 0;  in new()
88         hello_buf[i + 1] = 0;  in new()
89         hello_buf[i + 2] = 0;  in new()
91         hello_buf[i..i + 2].clone_from_slice(&PROTOCOL_VERSION.to_be_bytes());  in new()
93         hello_buf[i..i + 2].clone_from_slice(&PROTOCOL_FORMAT.to_be_bytes());  in new()
95         socket.write_all(&hello_buf)?;  in new()