ices/109072.rs: fixed with errors

=== stdout ===
=== stderr ===
error[E0637]: `'_` cannot be used here
 --> /home/runner/work/glacier/glacier/ices/109072.rs:1:10
  |
1 | trait Lt<'_> {
  |          ^^ `'_` is a reserved lifetime name

error[E0261]: use of undeclared lifetime name `'a`
 --> /home/runner/work/glacier/glacier/ices/109072.rs:4:13
  |
4 | impl<'f> Lt<'a> for () {
  |      -      ^^ undeclared lifetime
  |      |
  |      help: consider introducing lifetime `'a` here: `'a,`

error[E0658]: associated type defaults are unstable
 --> /home/runner/work/glacier/glacier/ices/109072.rs:2:5
  |
2 |     type T = ();
  |     ^^^^^^^^^^^^
  |
  = note: see issue #29661 <rust-lang/rust#29661> for more information
  = help: add `#![feature(associated_type_defaults)]` to the crate attributes to enable

error: aborting due to 3 previous errors

Some errors have detailed explanations: E0261, E0637, E0658.
For more information about an error, try `rustc --explain E0261`.
==============

Author: rustbot