ices/96572.rs: fixed with errors

[github-actions]

Issue: rust-lang/rust#96572

#![feature(type_alias_impl_trait)]

fn main() {
    type T = impl Copy;
    let foo: T = (1u32, 2u32);
    let (a, b): (u32, u32) = foo;
}

=== stdout ===
=== stderr ===
error: unconstrained opaque type
 --> /home/runner/work/glacier/glacier/ices/96572.rs:4:14
  |
4 |     type T = impl Copy;
  |              ^^^^^^^^^
  |
  = note: `T` must be used in combination with a concrete type within the same module

error: aborting due to previous error

==============