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error[E0658]: the precise format of `Fn`-family traits' type parameters is subject to change
--> $DIR/unboxed-closure-sugar-not-used-on-fn.rs:3:17
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LL | fn bar1(x: &dyn Fn<(), Output=()>) {
| ^^^^^^^^^^^^^^^^^ help: use parenthetical notation instead: `Fn() -> ()`
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= note: see issue #29625 <https://github.com/rust-lang/rust/issues/29625> for more information
= help: add `#![feature(unboxed_closures)]` 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= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date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[E0658]: the precise format of `Fn`-family traits' type parameters is subject to change
--> $DIR/unboxed-closure-sugar-not-used-on-fn.rs:7:28
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LL | fn bar2<T>(x: &T) where T: Fn<()> {
| ^^^^^^ help: use parenthetical notation instead: `Fn() -> ()`
|
= note: see issue #29625 <https://github.com/rust-lang/rust/issues/29625> for more information
= help: add `#![feature(unboxed_closures)]` 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= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date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 2 previous errors
For more information about this error, try `rustc --explain E0658`.
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