error[E0119]: conflicting implementations of trait `a::LolFrom<&[_]>` for type `LocalType<_>`:
  --> $DIR/issue-23563.rs:23:1
   |
LL | impl<'a, T> LolFrom<&'a [T]> for LocalType<T> { //~ ERROR conflicting implementations of trait
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: conflicting implementation in crate `issue_23563_a`:
           - impl<T, U> a::LolFrom<T> for U
             where T: a::LolInto<U>;

error: aborting due to previous error

If you want more information on this error, try using "rustc --explain E0119"