1 error[E0277]: expected a `Fn<(_,)>` closure, found `impl Fn(((_, _), _))`
2 --> $DIR/issue-59494.rs:21:22
4 LL | let t8 = t8n(t7, t7p(f, g));
5 | --- ^^^^^^^^^ expected an `Fn<(_,)>` closure, found `impl Fn(((_, _), _))`
7 | required by a bound introduced by this call
9 = help: the trait `Fn<(_,)>` is not implemented for `impl Fn(((_, _), _))`
10 note: required by a bound in `t8n`
11 --> $DIR/issue-59494.rs:5:45
13 LL | fn t8n<A, B, C>(f: impl Fn(A) -> B, g: impl Fn(A) -> C) -> impl Fn(A) -> (B, C)
14 | ^^^^^^^^^^ required by this bound in `t8n`
16 error: aborting due to previous error
18 For more information about this error, try `rustc --explain E0277`.