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#![feature(box_into_boxed_slice)]
use std::boxed::Box;
use std::fmt::Debug;
fn main() {
let boxed_slice = Box::new([1,2,3]) as Box<[u8]>;
let _ = Box::into_boxed_slice(boxed_slice);
//~^ ERROR the size for values of type `[u8]` cannot be known at compilation time
//~^^ ERROR the size for values of type `[u8]` cannot be known at compilation time
let boxed_trait: Box<dyn Debug> = Box::new(5u8);
let _ = Box::into_boxed_slice(boxed_trait);
//~^ ERROR the size for values of type `dyn Debug` cannot be known at compilation time
//~^^ ERROR the size for values of type `dyn Debug` cannot be known at compilation time
}
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