| error[E0499]: cannot borrow `y` as mutable more than once at a time |
| --> $DIR/issue-18783.rs:7:21 |
| | |
| LL | c.push(Box::new(|| y = 0)); |
| | -- - first borrow occurs due to use of `y` in closure |
| | | |
| | first mutable borrow occurs here |
| LL | c.push(Box::new(|| y = 0)); |
| | ^^ - second borrow occurs due to use of `y` in closure |
| | | |
| | second mutable borrow occurs here |
| LL | |
| LL | } |
| | - first borrow might be used here, when `c` is dropped and runs the destructor for type `RefCell<Vec<Box<dyn FnMut()>>>` |
| |
| error[E0499]: cannot borrow `y` as mutable more than once at a time |
| --> $DIR/issue-18783.rs:16:29 |
| | |
| LL | Push::push(&c, Box::new(|| y = 0)); |
| | -- - first borrow occurs due to use of `y` in closure |
| | | |
| | first mutable borrow occurs here |
| LL | Push::push(&c, Box::new(|| y = 0)); |
| | ^^ - second borrow occurs due to use of `y` in closure |
| | | |
| | second mutable borrow occurs here |
| LL | |
| LL | } |
| | - first borrow might be used here, when `c` is dropped and runs the destructor for type `RefCell<Vec<Box<dyn FnMut()>>>` |
| |
| error: aborting due to 2 previous errors |
| |
| For more information about this error, try `rustc --explain E0499`. |
