'yes' implementation in Rust

yes.rs

use std::io::{stdout, Write};

// Compile: rustc -O -C lto yes.rs
// Use: ./yes | pv > /dev/null
// 97GiB 0:00:57 [3.72GiB/s] [      <=>          ]

fn main() {
    let buffer = "y\n".repeat(16384).into_bytes();
    let stdout = stdout();
    let mut stdout = stdout.lock();

    loop {
        stdout.write(&buffer).unwrap();
    }
}