ices/59435.rs: fixed with errors

=== stdout ===
=== stderr ===
warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes
 --> /home/runner/work/glacier/glacier/ices/59435.rs:1:12
  |
1 | #![feature(specialization)]
  |            ^^^^^^^^^^^^^^
  |
  = note: `#[warn(incomplete_features)]` on by default
  = note: see issue #31844 <rust-lang/rust#31844> for more information

error[E0277]: the trait bound `MyStruct: std::default::Default` is not satisfied
  --> /home/runner/work/glacier/glacier/ices/59435.rs:10:5
   |
6  |     type MyType: Default;
   |     --------------------- required by `MyTrait::MyType`
...
10 |     default type MyType = MyStruct;
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `std::default::Default` is not implemented for `MyStruct`

error: aborting due to previous error; 1 warning emitted

For more information about this error, try `rustc --explain E0277`.
==============

Author: rustbot