ices/86850.rs: fixed with errors

=== stdout ===
=== stderr ===
error[E0601]: `main` function not found in crate `86850`
  --> /home/runner/work/glacier/glacier/ices/86850.rs:1:1
   |
1  | / #![feature(generic_const_exprs)]
2  | | #![allow(incomplete_features)]
3  | | use core::marker::PhantomData;
4  | |
...  |
19 | |     }
20 | | }
   | |_^ consider adding a `main` function to `/home/runner/work/glacier/glacier/ices/86850.rs`

error: aborting due to previous error

For more information about this error, try `rustc --explain E0601`.
==============

Author: rustbot