src/test/ui/rfc-0107-bind-by-move-pattern-guards/rfc-reject-double-move-in-first-arm.rs

struct A { a: Box<i32> }

fn foo(n: i32) {
    let x = A { a: Box::new(n) };
    let _y = match x {
        A { a: v } if { drop(v); true } => v,
        //~^ ERROR cannot move out of `v` in pattern guard
        _ => Box::new(0),
    };
}

fn main() {
    foo(107);
}