= note: expected enum `Option<_>`
found unit type `()`
-error[E0121]: the type placeholder `_` is not allowed within types on item signatures for return types
+error[E0121]: the placeholder `_` is not allowed within types on item signatures for return types
--> $DIR/issue-91450-inner-ty-error.rs:4:20
|
LL | fn foo() -> Option<_> {}