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#![allow(unused_variables)]
#![allow(unused_assignments)]
#![allow(dead_code)]
#![deny(unreachable_code)]
#![feature(never_type, type_ascription)]

fn a() {
    // the cast is unreachable:
    let x = {return} as !; //~ ERROR unreachable
    //~| ERROR non-primitive cast
}

fn main() { }