gistfile1.txt

repr.rs:5:5: 5:15 error: discriminant value outside specified type
repr.rs:5     Qux = 5000
              ^~~~~~~~~~
repr.rs:1:8: 1:10 note: discriminant type specified here
repr.rs:1 #[repr(i8)]
                 ^~

repr.rs

#[repr(i8)]
enum Foo {
    Bar = 0,
    Baz = 127,
    Qux = 5000
}

fn main() {
    println!("{:i}", Qux as i8)
}