error[E0713]: borrow may still be in use when destructor runs --> $DIR/borrowck-fn-in-const-c.rs:17:16 | LL | return &local.inner; | ^^^^^^^^^^^^ returning this value requires that `local.inner` is borrowed for `'static` LL | } | - here, drop of `local` needs exclusive access to `local.inner`, because the type `DropString` implements the `Drop` trait error: aborting due to previous error For more information about this error, try `rustc --explain E0713`.