Rust code shared from the playground

playground.rs

use std::str;

fn main() {
    let b = "67e5504410b1426f9247bb680e5fe0c8";
    let mut bytes = [0u8; 16];
    
    for (dest, chunk) in bytes.iter_mut().zip(b.as_bytes().chunks(2)) {
        let s = match str::from_utf8(chunk) {
            Ok(v) => v,
            Err(e) => panic!("Invalid UTF-8 sequence: {}", e),
        };
        
        match u8::from_str_radix(s, 16) {
                Ok(byte) => *dest = byte,
                Err(..) => {},
        }
    }
    
    println!("{:?}", bytes);
}