error[E0507]: cannot move out of `foo` in pattern guard
  --> $DIR/issue-27282-move-ref-mut-into-guard.rs:11:19
   |
LL |             if { (|| { let bar = foo; bar.take() })(); false } => {},
   |                   ^^             --- move occurs because `foo` has type `&mut Option<&i32>`, which does not implement the `Copy` trait
   |                   |
   |                   `foo` is moved here
   |
   = note: variables bound in patterns cannot be moved from until after the end of the pattern guard

error[E0507]: cannot move out of `foo` in pattern guard
  --> $DIR/issue-27282-move-ref-mut-into-guard.rs:19:34
   |
LL |             if let Some(()) = { (|| { let bar = foo; bar.take() })(); None } => {},
   |                                  ^^             --- move occurs because `foo` has type `&mut Option<&i32>`, which does not implement the `Copy` trait
   |                                  |
   |                                  `foo` is moved here
   |
   = note: variables bound in patterns cannot be moved from until after the end of the pattern guard

error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0507`.
