rust/tests/ui/borrowck/issue-85581.stderr

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error[E0499]: cannot borrow `*heap` as mutable more than once at a time
--> $DIR/issue-85581.rs:9:22
|
LL | match heap.peek_mut() {
| ---------------
| |
| first mutable borrow occurs here
| a temporary with access to the first borrow is created here ...
LL | Some(_) => { heap.pop(); },
| ^^^^ second mutable borrow occurs here
...
LL | }
| - ... and the first borrow might be used here, when that temporary is dropped and runs the destructor for type `Option<PeekMut<'_, i32>>`
error: aborting due to 1 previous error
For more information about this error, try `rustc --explain E0499`.