error[E0499]: cannot borrow `*bar` as mutable more than once at a time --> $DIR/issue-51117.rs:10:13 | LL | Some(baz) => { | --- first mutable borrow occurs here LL | bar.take(); //~ ERROR cannot borrow | ^^^ second mutable borrow occurs here ... LL | } | - first borrow ends here error: aborting due to previous error For more information about this error, try `rustc --explain E0499`.