1error[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
3   |
4LL | fn bar1(x: &dyn Fn<(), Output=()>) {
5   |                 ^^^^^^^^^^^^^^^^^ help: use parenthetical notation instead: `Fn() -> ()`
6   |
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
9
10error[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
12   |
13LL | fn bar2<T>(x: &T) where T: Fn<()> {
14   |                            ^^^^^^ help: use parenthetical notation instead: `Fn() -> ()`
15   |
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
18
19error: aborting due to 2 previous errors
20
21For more information about this error, try `rustc --explain E0658`.
22