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 {
6 37 | | //~^ ERROR E0046
7 38 | | //~| NOTE missing `Output` in implementation
8 39 | | //~| NOTE `Output` from trait: `type Output;`
12 | |_^ ...ending here: missing `Output` in implementation
14 = note: `Output` from trait: `type Output;`
16 error: aborting due to previous error