| error[E0507]: cannot move out of `v` in pattern guard | |
| --> $DIR/rfc-reject-double-move-in-first-arm.rs:6:30 | |
| | | |
| LL | A { a: v } if { drop(v); true } => v, | |
| | ^ move occurs because `v` has type `std::boxed::Box<i32>`, which does not implement the `Copy` trait | |
| | | |
| = note: variables bound in patterns cannot be moved from until after the end of the pattern guard | |
| error: aborting due to previous error | |
| For more information about this error, try `rustc --explain E0507`. |