1 error[E0596]: cannot borrow `*inner` as mutable, as it is behind a `&` reference
2 --> $DIR/issue-91206.rs:13:5
4 LL | let inner = client.get_inner_ref();
5 | ----- help: consider changing this to be a mutable reference: `&mut Vec<usize>`
8 | ^^^^^^^^^^^^^ `inner` is a `&` reference, so the data it refers to cannot be borrowed as mutable
10 error: aborting due to previous error
12 For more information about this error, try `rustc --explain E0596`.