ices/88468.rs: fixed with no errors

=== stdout ===
=== stderr ===
warning: function is never used: `assert_not_zero_sized`
  --> /home/runner/work/glacier/glacier/ices/88468.rs:16:4
   |
16 | fn assert_not_zero_sized<T: IsNotZst>(_: T) {}
   |    ^^^^^^^^^^^^^^^^^^^^^
   |
   = note: `#[warn(dead_code)]` on by default

warning: function is never used: `main`
  --> /home/runner/work/glacier/glacier/ices/88468.rs:18:4
   |
18 | fn main() {
   |    ^^^^

warning: 2 warnings emitted

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

Author: rustbot