|
LL | fn ho_func(f: Option<FuncType>) {
| ^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
+...
+LL | enum Option<T> {
+ | - required by this bound in `Option`
|
= help: the trait `std::marker::Sized` is not implemented for `dyn for<'r> std::ops::Fn(&'r isize) -> isize`
= note: to learn more, visit <https://doc.rust-lang.org/book/ch19-04-advanced-types.html#dynamically-sized-types-and-the-sized-trait>
- = note: required by `std::option::Option`
error: aborting due to previous error