ices/61368.rs: fixed with no errors

[github-actions]

Issue: rust-lang/rust#61368

#![feature(const_generics)]

struct Stack<const N: usize> {
    stack: [u64; N / 8],
}

fn main() {}

=== stdout ===
=== stderr ===
warning: the feature `const_generics` is incomplete and may cause the compiler to crash
 --> /home/runner/work/glacier/glacier/ices/61368.rs:1:12
  |
1 | #![feature(const_generics)]
  |            ^^^^^^^^^^^^^^
  |
  = note: `#[warn(incomplete_features)]` on by default

warning: struct is never constructed: `Stack`
 --> /home/runner/work/glacier/glacier/ices/61368.rs:3:8
  |
3 | struct Stack<const N: usize> {
  |        ^^^^^
  |
  = note: `#[warn(dead_code)]` on by default

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