//@ only-x86_64 #![feature(dyn_star, pointer_like_trait)] //~^ WARN the feature `dyn_star` is incomplete use std::fmt::Debug; use std::marker::PointerLike; fn make_dyn_star() -> dyn* Debug + 'static { f32::from_bits(0x1) as f64 //~^ ERROR `f64` needs to have the same ABI as a pointer } fn main() { println!("{:?}", make_dyn_star()); }