mirror of
https://github.com/rust-lang/rust
synced 2024-11-05 20:45:15 +00:00
16 lines
343 B
Rust
16 lines
343 B
Rust
//@ edition: 2021
|
|
|
|
#![feature(unsized_locals)]
|
|
//~^ WARN the feature `unsized_locals` is incomplete
|
|
|
|
async fn f() {}
|
|
|
|
async fn g(x: Box<dyn std::fmt::Display>) {
|
|
let _x = *x;
|
|
//~^ ERROR the size for values of type `dyn std::fmt::Display` cannot be known at compilation time
|
|
f().await;
|
|
}
|
|
|
|
fn main() {
|
|
let _a = g(Box::new(5));
|
|
}
|