ices/68653.rs: fixed with no errors

=== stdout ===
=== stderr ===
warning: the feature `generic_associated_types` is incomplete and may cause the compiler to crash
 --> /home/runner/work/glacier/glacier/ices/68653.rs:1:12
  |
1 | #![feature(generic_associated_types)]
  |            ^^^^^^^^^^^^^^^^^^^^^^^^
  |
  = note: `#[warn(incomplete_features)]` on by default

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

Author: rustbot