|  | error[E0562]: `impl Trait` is not allowed in the type of variable bindings | 
|  | --> $DIR/feature-gate-impl-trait-in-bindings.rs:2:12 | 
|  | | | 
|  | LL |     let x: impl Sized = (); | 
|  | |            ^^^^^^^^^^ | 
|  | | | 
|  | = note: `impl Trait` is only allowed in arguments and return types of functions and methods | 
|  | = note: see issue #63065 <https://github.com/rust-lang/rust/issues/63065> for more information | 
|  | = help: add `#![feature(impl_trait_in_bindings)]` to the crate attributes to enable | 
|  | = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date | 
|  |  | 
|  | error: aborting due to 1 previous error | 
|  |  | 
|  | For more information about this error, try `rustc --explain E0562`. |