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// check that borrowck looks inside consts/statics
static FN : &'static (dyn Fn() -> Box<dyn Fn()->Box<i32>> + Sync) = &|| {
let x = Box::new(0);
Box::new(|| x) //~ ERROR cannot move out of `x`, a captured variable in an `Fn` closure
};
fn main() {
let f = (FN)();
f();
f();
}
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