1 error[E0046]: not all trait items implemented, missing: `Output`
2 --> $DIR/issue-23827.rs:36:1
4 36 | / impl<C: Component> FnOnce<(C,)> for Prototype {
5 37 | | //~^ ERROR E0046
6 38 | | //~| NOTE missing `Output` in implementation
7 39 | | //~| NOTE `Output` from trait: `type Output;`
11 | |_^ missing `Output` in implementation
13 = note: `Output` from trait: `type Output;`
15 error: aborting due to previous error