ices/67375.rs: fixed with errors

[github-actions]

Issue: rust-lang/rust#67375

struct Bug<T> {
    inner: [(); { [|_: &T| {}; 0].len() }],
}

fn main() {}

=== stdout ===
=== stderr ===
error: generic parameters may not be used in const operations
 --> /home/runner/work/glacier/glacier/ices/67375.rs:2:25
  |
2 |     inner: [(); { [|_: &T| {}; 0].len() }],
  |                         ^ cannot perform const operation using `T`
  |
  = note: type parameters may not be used in const expressions
  = help: use `#![feature(const_generics)]` and `#![feature(const_evaluatable_checked)]` to allow generic const expressions

warning: unnecessary braces around const expression
 --> /home/runner/work/glacier/glacier/ices/67375.rs:2:17
  |
2 |     inner: [(); { [|_: &T| {}; 0].len() }],
  |                 ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
  |
  = note: `#[warn(unused_braces)]` on by default

error[E0392]: parameter `T` is never used
 --> /home/runner/work/glacier/glacier/ices/67375.rs:1:12
  |
1 | struct Bug<T> {
  |            ^ unused parameter
  |
  = help: consider removing `T`, referring to it in a field, or using a marker such as `PhantomData`

error: aborting due to 2 previous errors; 1 warning emitted

For more information about this error, try `rustc --explain E0392`.
==============