| error[E0658]: `impl Trait` in return position is experimental (see issue #34511) | |
| --> $DIR/feature-gate-conservative_impl_trait.rs:11:13 | |
| | | |
| 11 | fn foo() -> impl Fn() { || {} } | |
| | ^^^^^^^^^ | |
| | | |
| = help: add #![feature(conservative_impl_trait)] to the crate attributes to enable | |
| error: aborting due to previous error | |