src/test/ui/type-alias-impl-trait/type-alias-impl-trait-const.stderr

warning: the feature `impl_trait_in_bindings` is incomplete and may cause the compiler to crash
  --> $DIR/type-alias-impl-trait-const.rs:8:12
   |
LL | #![feature(impl_trait_in_bindings)]
   |            ^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: `#[warn(incomplete_features)]` on by default