1 error[E0658]: the precise format of `Fn`-family traits' type parameters is subject to change
2 --> $DIR/unboxed-closure-sugar-not-used-on-fn.rs:3:17
4 LL | fn bar1(x: &dyn Fn<(), Output=()>) {
5 | ^^^^^^^^^^^^^^^^^ help: use parenthetical notation instead: `Fn() -> ()`
7 = note: see issue #29625 <https://github.com/rust-lang/rust/issues/29625> for more information
8 = help: add `#![feature(unboxed_closures)]` to the crate attributes to enable
10 error[E0658]: the precise format of `Fn`-family traits' type parameters is subject to change
11 --> $DIR/unboxed-closure-sugar-not-used-on-fn.rs:7:28
13 LL | fn bar2<T>(x: &T) where T: Fn<()> {
14 | ^^^^^^ help: use parenthetical notation instead: `Fn() -> ()`
16 = note: see issue #29625 <https://github.com/rust-lang/rust/issues/29625> for more information
17 = help: add `#![feature(unboxed_closures)]` to the crate attributes to enable
19 error: aborting due to 2 previous errors
21 For more information about this error, try `rustc --explain E0658`.