#![feature(rustc_attrs)] | |
#![allow(internal_features)] | |
#[derive(Debug)] | |
#[rustc_layout_scalar_valid_range_start(2)] | |
struct NonZeroAndOneU8(u8); | |
fn main() { | |
println!("{:?}", Some(1).map(NonZeroAndOneU8).unwrap()); | |
//~^ ERROR found `unsafe fn(u8) -> NonZeroAndOneU8 {NonZeroAndOneU8}` | |
} |