question 5 warning, link to tracking issue?

[arctic-penguin]

When copy-pasting the code to rust 1.68 and running cargo check, the following warning is produced.

warning: conflicting implementations of trait `Trait` for type `fn(&_)`
  --> src/main.rs:11:1
   |
5  | impl<T> Trait for fn(T) {
   | ----------------------- first implementation here
...
11 | impl<T> Trait for fn(&T) {
   | ^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `fn(&_)`
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
   = note: for more information, see issue #56105 <https://github.com/rust-lang/rust/issues/56105>
   = note: this behavior recently changed as a result of a bug fix; see rust-lang/rust#56105 for details
   = note: `#[warn(coherence_leak_check)]` on by default

Would a link to the tracking issue in the explanation be sensible?