Negative coverage: prove_place_is_movable / copy / premise prove_ty_is_copy(env, assumptions, state, &place.ty) => state

Premise at line 1013. Observed failure causes: failed_judgment.

3 tests failed proving this premise:

Source location: tests/borrowck.rs:473

fn foo() -> Datum {
    exists<'r0, 'r1> {
        let x: Datum = Datum { value: 0_u32 };
        let r: &'r0 Datum = &'r1 x;
        let y: Datum = *r;
        return y;
    }
}

Source location: tests/borrowck.rs:1132

fn foo() -> Datum {
    exists<'r0, 'r1> {
        let x: Datum = Datum { value: 0_u32 };
        let r: &'r0 mut Datum = &mut 'r1 x;
        let y: Datum = *r;
        return y;
    }
}

Source location: tests/borrowck.rs:3398

fn foo(f: Pair) -> () {
    let s: Datum = f.x;
}