Code shared from the Rust Playground

playground.rs

 impl From<&Message> for Vec<u8> {
	     fn from(m: &Message) -> Vec<u8> {
	         let mut v: Vec<u8> = Vec::new();
	         let bs: Vec<u8> = (&m.prelude).into();
	         v.append(&mut bs.clone());
	         let crc = m.prelude.crc();
	         let mut val_bs: Vec<u8> = u32::to_be_bytes(crc).to_vec();
	         v.append(&mut val_bs);
	         let mut bs: Vec<u8> = (&m.data).into();
	         v.append(&mut bs);
	 
	         let mut crc_bytes = Message::crc(v.to_vec());
	         v.append(&mut crc_bytes);
	         v
	     }
	 }