| error: this `Deref` implementation is covered by an implicit supertrait coercion |
| --> $DIR/migrate-lint-deny.rs:9:1 |
| | |
| LL | impl<'a> Deref for dyn 'a + B { |
| | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `dyn B` implements `Deref<Target = dyn A>` which conflicts with supertrait `A` |
| ... |
| LL | type Target = dyn A; |
| | -------------------- target type is a supertrait of `dyn B` |
| | |
| = warning: this will change its meaning in a future release! |
| = note: for more information, see issue #89460 <https://github.com/rust-lang/rust/issues/89460> |
| note: the lint level is defined here |
| --> $DIR/migrate-lint-deny.rs:1:9 |
| | |
| LL | #![deny(deref_into_dyn_supertrait)] |
| | ^^^^^^^^^^^^^^^^^^^^^^^^^ |
| |
| error: aborting due to 1 previous error |
| |
