| ^^^^^^^^^^^^ method not found in `std::option::Option<{integer}>`
|
= note: the method `as_deref_mut` exists but the following trait bounds were not satisfied:
- `<{integer} as std::ops::Deref>::Target = _`
`{integer}: std::ops::DerefMut`
+ `<{integer} as std::ops::Deref>::Target = _`
error: aborting due to previous error