error[E0500]: closure requires unique access to `x` but it is already borrowed | |
--> $DIR/issue-27282-mutate-before-diverging-arm-2.rs:38:18 | |
| | |
LL | match x { | |
| - borrow occurs here | |
... | |
LL | (|| { *x = None; drop(force_fn_once); })(); | |
| ^^ - second borrow occurs due to use of `x` in closure | |
| | | |
| closure construction occurs here | |
... | |
LL | &mut Some(&2) | |
| ------------- borrow later used here | |
error: aborting due to previous error | |
For more information about this error, try `rustc --explain E0500`. |