error[E0658]: naming constants with `_` is unstable (see issue #54912)
- --> $DIR/feature-gate-underscore_const_names.rs:17:1
+ --> $DIR/feature-gate-underscore_const_names.rs:8:1
|
LL | / const _ : () = {
+LL | | //~^ ERROR is unstable
LL | | use std::marker::PhantomData;
LL | | struct ImplementsTrait<T: Trt>(PhantomData<T>);
LL | | let _ = ImplementsTrait::<Str>(PhantomData);