error: captured variable cannot escape `FnMut` closure body
--> $DIR/issue-53040.rs:3:8
|
+LL | let mut v: Vec<()> = Vec::new();
+ | ----- variable defined here
LL | || &mut v;
- | - ^^^^^^ returns a reference to a captured variable which escapes the closure body
- | |
+ | - ^^^^^-
+ | | | |
+ | | | variable captured here
+ | | returns a reference to a captured variable which escapes the closure body
| inferred to be a `FnMut` closure
|
= note: `FnMut` closures only have access to their captured variables while they are executing...