#![cfg(feature ="derive")]externcrate bincode as bincode_new;// Make sure that the `bincode` crate exists, just symlink it to `core.
externcrate core as bincode;#[derive(bincode_new::Encode)]#[bincode(crate ="bincode_new")]#[allow(dead_code)]structDeriveRenameTest{a:u32,
b:u32,
}