ices/61455.rs: fixed with errors

=== stdout ===
=== stderr ===
warning: the feature `const_generics` is incomplete and may cause the compiler to crash
 --> /home/runner/work/glacier/glacier/ices/61455.rs:1:12
  |
1 | #![feature(const_generics)]
  |            ^^^^^^^^^^^^^^
  |
  = note: `#[warn(incomplete_features)]` on by default

error: `std::intrinsics::transmute` is not yet stable as a const fn
  --> /home/runner/work/glacier/glacier/ices/61455.rs:10:18
   |
10 |         unsafe { transmute(|x: u8| {}) }
   |                  ^^^^^^^^^^^^^^^^^^^^^
   |
   = help: add `#![feature(const_transmute)]` to the crate attributes to enable

error[E0080]: evaluation of constant value failed
  --> /home/runner/work/glacier/glacier/ices/61455.rs:10:18
   |
10 |         unsafe { transmute(|x: u8| {}) }
   |                  ^^^^^^^^^^^^^^^^^^^^^ tried to transmute from [closure@/home/runner/work/glacier/glacier/ices/61455.rs:10:28: 10:38] to fn(usize), but their sizes differed

error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0080`.
==============

Author: rustbot