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Positive coverage: prove_ty_is_rigid / rigid

rigid
LineCoverageSource
──────── ("rigid")
105549(prove_ty_is_rigid(_env, _assumptions, state, TyData::RigidTy(rigid_ty)) => (rigid_ty, state))

49 tests exercised this rule:

Source location: tests/borrowck.rs:270

fn foo() -> Datum {
    let x: Pair = Pair { first: Datum { value: 1_u32 }, second: Datum { value: 2_u32 } };
    let a: Datum = x.first;
    let b: Datum = x.second;
    return b;
}
Proof tree
… (200 of 1154 nodes shown)

Source location: tests/borrowck.rs:2341

fn min_problem_case_4<'a>(list: &'a mut Map, list2: &'a mut Map) -> u32 {
    exists<'r0> {
        let num: &'r0 mut u32 = &mut 'r0 (*list).value;
        list = &mut 'a *list2;
        num;
        return 0_u32;
    }
}
Proof tree
… (200 of 1518 nodes shown)

Source location: tests/borrowck.rs:2911

fn foo<'a>(a: &'a u32) -> &'a u32 {
    exists<'r0> {
        let r: &'r0 u32 = identity::<&'r0 u32>(a);
        return r;
    }
}
Proof tree
… (200 of 1222 nodes shown)

Source location: tests/borrowck.rs:2933

fn bar() -> u32 {
    exists<'r1> {
        let v: u32 = 7_u32;
        let r: u32 = foo::<'r1>(&'r1 v);
        return r;
    }
}
Proof tree
… (200 of 1430 nodes shown)

Source location: tests/borrowck.rs:2961

fn foo<'a, 'b>(a: &'a u32) -> &'b u32
where 'a: 'b {
    let r: &'b u32 = identity::<&'b u32>(a);
    return r;
}
Proof tree
… (200 of 1131 nodes shown)

Source location: tests/borrowck.rs:3006

fn foo<'b>(a: &'b u32) -> &'b u32 {
    let r: &'b u32 = bar::<'b, &'b u32>(a);
    return r;
}
Proof tree
… (200 of 1134 nodes shown)

Source location: tests/borrowck.rs:3027

fn bar() -> u32 {
    exists<'r0, 'r1> {
        let v: u32 = 1_u32;
        let p: &'r0 u32 = &'r1 v;
        foo(0_u32);
        return *p;
    }
}
Proof tree
… (200 of 1451 nodes shown)

Source location: tests/borrowck.rs:3081

fn foo() -> u32 {
    exists<'r0, 'r1, 'r2, 'r3> {
        let p: Point = Point { x: 0_u32, y: 0_u32 };
        let b1: &'r0 mut u32 = &mut 'r1 p.x;
        let b2: &'r2 mut u32 = &mut 'r3 p.y;
        *b1 = 1_u32;
        *b2 = 2_u32;
        return 0_u32;
    }
}
Proof tree
… (200 of 1669 nodes shown)

Source location: tests/borrowck.rs:3683

#[test]
fn issue_63908_remove_last_node_recursive() {
    // [nll]: rustc passes.
    FormalityTest::new(feature_gate_program(
        NLL_GATE,
        ISSUE_63908_REMOVE_LAST_NODE_RECURSIVE,
    ))
    .skip_execute()
    .ok();

    // [polonius]: rustc passes.
    FormalityTest::new(feature_gate_program(
        POLONIUS_ALPHA_GATE,
        ISSUE_63908_REMOVE_LAST_NODE_RECURSIVE,
    ))
    .skip_execute()
    .ok();

    // [legacy]: rustc passes.
    FormalityTest::new(feature_gate_program(
        POLONIUS_UNLOCKED_GATE,
        ISSUE_63908_REMOVE_LAST_NODE_RECURSIVE,
    ))
    .skip_execute()
    .ok();
}
Proof tree
… (200 of 1735 nodes shown)

Source location: tests/borrowck.rs:3691

#[test]
fn issue_63908_remove_last_node_recursive() {
    // [nll]: rustc passes.
    FormalityTest::new(feature_gate_program(
        NLL_GATE,
        ISSUE_63908_REMOVE_LAST_NODE_RECURSIVE,
    ))
    .skip_execute()
    .ok();

    // [polonius]: rustc passes.
    FormalityTest::new(feature_gate_program(
        POLONIUS_ALPHA_GATE,
        ISSUE_63908_REMOVE_LAST_NODE_RECURSIVE,
    ))
    .skip_execute()
    .ok();

    // [legacy]: rustc passes.
    FormalityTest::new(feature_gate_program(
        POLONIUS_UNLOCKED_GATE,
        ISSUE_63908_REMOVE_LAST_NODE_RECURSIVE,
    ))
    .skip_execute()
    .ok();
}
Proof tree
… (200 of 1459 nodes shown)

Source location: tests/borrowck.rs:3699

#[test]
fn issue_63908_remove_last_node_recursive() {
    // [nll]: rustc passes.
    FormalityTest::new(feature_gate_program(
        NLL_GATE,
        ISSUE_63908_REMOVE_LAST_NODE_RECURSIVE,
    ))
    .skip_execute()
    .ok();

    // [polonius]: rustc passes.
    FormalityTest::new(feature_gate_program(
        POLONIUS_ALPHA_GATE,
        ISSUE_63908_REMOVE_LAST_NODE_RECURSIVE,
    ))
    .skip_execute()
    .ok();

    // [legacy]: rustc passes.
    FormalityTest::new(feature_gate_program(
        POLONIUS_UNLOCKED_GATE,
        ISSUE_63908_REMOVE_LAST_NODE_RECURSIVE,
    ))
    .skip_execute()
    .ok();
}

Proof trees omitted for the remaining 39 tests.

Source location: tests/borrowck.rs:3801

#[test]
fn issue_63908_remove_last_node_iterative() {
    FormalityTest::new(feature_gate_program(
        NLL_GATE,
        ISSUE_63908_REMOVE_LAST_NODE_ITERATIVE,
    ))
    .skip_execute()
    .err(expect_test::expect![[r#"
        the rule "borrow of disjoint places" at (nll.rs) failed because
          condition evaluated to false: `place_disjoint_from_place(&loan.place, &access.place)`
            &loan.place = *(cursor : &?lt_2 mut List) : <&?lt_2 mut List as Derefable>::Target
            &access.place = *(cursor : &?lt_2 mut List) : <&?lt_2 mut List as Derefable>::Target

        the rule "loan_cannot_outlive" at (nll.rs) failed because
          condition evaluated to false: `!outlived_by_loan.contains(&lifetime.upcast())`
            outlived_by_loan = {?lt_2, ?lt_3}
            &lifetime.upcast() = ?lt_2

        the rule "write-indirect" at (nll.rs) failed because
          pattern `TypedPlaceExpressionData::Deref(place_loaned_ref)` did not match value `cursor`

        the rule "write-indirect" at (nll.rs) failed because
          condition evaluated to false: `place_accessed.is_prefix_of(place_loaned_ref)`
            place_accessed = *(cursor : &?lt_2 mut List) : <&?lt_2 mut List as Derefable>::Target
            place_loaned_ref = cursor : &?lt_2 mut List"#]]);

    // [polonius]: rustc errors here (known-bug #63908), same as [nll].
    FormalityTest::new(feature_gate_program(
        POLONIUS_ALPHA_GATE,
        ISSUE_63908_REMOVE_LAST_NODE_ITERATIVE,
    ))
    .skip_execute()
    .err(expect_test::expect![[r#"
        the rule "borrow of disjoint places" at (nll.rs) failed because
          condition evaluated to false: `place_disjoint_from_place(&loan.place, &access.place)`
            &loan.place = *(cursor : &?lt_2 mut List) : <&?lt_2 mut List as Derefable>::Target
            &access.place = *(cursor : &?lt_2 mut List) : <&?lt_2 mut List as Derefable>::Target

        the rule "loan_cannot_outlive" at (nll.rs) failed because
          condition evaluated to false: `!outlived_by_loan.contains(&lifetime.upcast())`
            outlived_by_loan = {?lt_2, ?lt_3}
            &lifetime.upcast() = ?lt_2

        the rule "write-indirect" at (nll.rs) failed because
          pattern `TypedPlaceExpressionData::Deref(place_loaned_ref)` did not match value `cursor`

        the rule "write-indirect" at (nll.rs) failed because
          condition evaluated to false: `place_accessed.is_prefix_of(place_loaned_ref)`
            place_accessed = *(cursor : &?lt_2 mut List) : <&?lt_2 mut List as Derefable>::Target
            place_loaned_ref = cursor : &?lt_2 mut List"#]]);

    // [legacy]: rustc passes.
    FormalityTest::new(feature_gate_program(
        POLONIUS_UNLOCKED_GATE,
        ISSUE_63908_REMOVE_LAST_NODE_ITERATIVE,
    ))
    .skip_execute()
    .ok();
}

Source location: tests/borrowck.rs:3849

#[test]
fn issue_57165_no_control_flow() {
    // [nll]: rustc passes.
    FormalityTest::new(feature_gate_program(NLL_GATE, ISSUE_57165_NO_CONTROL_FLOW))
        .skip_execute()
        .ok();

    // [polonius]: rustc passes.
    FormalityTest::new(feature_gate_program(
        POLONIUS_ALPHA_GATE,
        ISSUE_57165_NO_CONTROL_FLOW,
    ))
    .skip_execute()
    .ok();

    // [legacy]: rustc passes.
    FormalityTest::new(feature_gate_program(
        POLONIUS_UNLOCKED_GATE,
        ISSUE_57165_NO_CONTROL_FLOW,
    ))
    .skip_execute()
    .ok();
}

Source location: tests/borrowck.rs:3857

#[test]
fn issue_57165_no_control_flow() {
    // [nll]: rustc passes.
    FormalityTest::new(feature_gate_program(NLL_GATE, ISSUE_57165_NO_CONTROL_FLOW))
        .skip_execute()
        .ok();

    // [polonius]: rustc passes.
    FormalityTest::new(feature_gate_program(
        POLONIUS_ALPHA_GATE,
        ISSUE_57165_NO_CONTROL_FLOW,
    ))
    .skip_execute()
    .ok();

    // [legacy]: rustc passes.
    FormalityTest::new(feature_gate_program(
        POLONIUS_UNLOCKED_GATE,
        ISSUE_57165_NO_CONTROL_FLOW,
    ))
    .skip_execute()
    .ok();
}

Source location: tests/borrowck.rs:3865

#[test]
fn issue_57165_no_control_flow() {
    // [nll]: rustc passes.
    FormalityTest::new(feature_gate_program(NLL_GATE, ISSUE_57165_NO_CONTROL_FLOW))
        .skip_execute()
        .ok();

    // [polonius]: rustc passes.
    FormalityTest::new(feature_gate_program(
        POLONIUS_ALPHA_GATE,
        ISSUE_57165_NO_CONTROL_FLOW,
    ))
    .skip_execute()
    .ok();

    // [legacy]: rustc passes.
    FormalityTest::new(feature_gate_program(
        POLONIUS_UNLOCKED_GATE,
        ISSUE_57165_NO_CONTROL_FLOW,
    ))
    .skip_execute()
    .ok();
}

Source location: tests/borrowck.rs:4011

#[test]
fn issue_57165_conditional() {
    FormalityTest::new(feature_gate_program(NLL_GATE, ISSUE_57165_CONDITIONAL))
        .skip_execute()
        .err(expect_test::expect![[r#"
            the rule "fixed-point" at (nll.rs) failed because
              condition evaluated to false: `state0 == state1`
                state0 = flow_state([scope(none, None, {}, None, [], []), scope(none, None, {}, None, [], []), scope(some(U(4)), None, {}, None, [(b, X), (p, &?lt_1 mut X)], [b : X, p : &?lt_1 mut X]), scope(some(U(4)), Some('l), {}, Some({* p}), [], [])], point_flow_state({pending_outlives(?lt_2, ?lt_1)}, {loan(?lt_2, b : X, mut)}, {}), {}, {}, {pending_outlives(?lt_2, ?lt_1)})
                state1 = flow_state([scope(none, None, {}, None, [], []), scope(none, None, {}, None, [], []), scope(some(U(4)), None, {}, None, [(b, X), (p, &?lt_1 mut X)], [b : X, p : &?lt_1 mut X]), scope(some(U(4)), Some('l), {}, Some({* p}), [], [])], point_flow_state({pending_outlives(?lt_1, ?lt_3), pending_outlives(?lt_2, ?lt_1), pending_outlives(?lt_3, ?lt_4), pending_outlives(?lt_4, ?lt_1)}, {loan(?lt_2, b : X, mut), loan(?lt_3, *(p : &?lt_1 mut X) : <&?lt_1 mut X as Derefable>::Target, mut)}, {}), {labeled_flow_state('l, point_flow_state({pending_outlives(?lt_1, ?lt_3), pending_outlives(?lt_2, ?lt_1)}, {loan(?lt_2, b : X, mut), loan(?lt_3, *(p : &?lt_1 mut X) : <&?lt_1 mut X as Derefable>::Target, mut)}, {}))}, {}, {pending_outlives(?lt_1, ?lt_3), pending_outlives(?lt_2, ?lt_1), pending_outlives(?lt_3, ?lt_4), pending_outlives(?lt_4, ?lt_1)})

            the rule "borrow of disjoint places" at (nll.rs) failed because
              condition evaluated to false: `place_disjoint_from_place(&loan.place, &access.place)`
                &loan.place = *(p : &?lt_1 mut X) : <&?lt_1 mut X as Derefable>::Target
                &access.place = *(p : &?lt_1 mut X) : <&?lt_1 mut X as Derefable>::Target

            the rule "loan_cannot_outlive" at (nll.rs) failed because
              condition evaluated to false: `!outlived_by_loan.contains(&lifetime.upcast())`
                outlived_by_loan = {?lt_1, ?lt_3, ?lt_4}
                &lifetime.upcast() = ?lt_1

            the rule "write-indirect" at (nll.rs) failed because
              pattern `TypedPlaceExpressionData::Deref(place_loaned_ref)` did not match value `p`

            the rule "write-indirect" at (nll.rs) failed because
              condition evaluated to false: `place_accessed.is_prefix_of(place_loaned_ref)`
                place_accessed = *(p : &?lt_1 mut X) : <&?lt_1 mut X as Derefable>::Target
                place_loaned_ref = p : &?lt_1 mut X

            the rule "borrow of disjoint places" at (nll.rs) failed because
              condition evaluated to false: `place_disjoint_from_place(&loan.place, &access.place)`
                &loan.place = *(p : &?lt_1 mut X) : <&?lt_1 mut X as Derefable>::Target
                &access.place = *(p : &?lt_1 mut X) : <&?lt_1 mut X as Derefable>::Target

            the rule "loan_cannot_outlive" at (nll.rs) failed because
              condition evaluated to false: `!outlived_by_loan.contains(&lifetime.upcast())`
                outlived_by_loan = {?lt_1, ?lt_3, ?lt_4}
                &lifetime.upcast() = ?lt_1

            the rule "write-indirect" at (nll.rs) failed because
              pattern `TypedPlaceExpressionData::Deref(place_loaned_ref)` did not match value `p`

            the rule "write-indirect" at (nll.rs) failed because
              condition evaluated to false: `place_accessed.is_prefix_of(place_loaned_ref)`
                place_accessed = *(p : &?lt_1 mut X) : <&?lt_1 mut X as Derefable>::Target
                place_loaned_ref = p : &?lt_1 mut X"#]]);

    FormalityTest::new(feature_gate_program(
        POLONIUS_ALPHA_GATE,
        ISSUE_57165_CONDITIONAL,
    ))
    .skip_execute()
    .err(expect_test::expect![[r#"
        the rule "fixed-point" at (nll.rs) failed because
          condition evaluated to false: `state0 == state1`
            state0 = flow_state([scope(none, None, {}, None, [], []), scope(none, None, {}, None, [], []), scope(some(U(4)), None, {}, None, [(b, X), (p, &?lt_1 mut X)], [b : X, p : &?lt_1 mut X]), scope(some(U(4)), Some('l), {}, Some({* p}), [], [])], point_flow_state({pending_outlives(?lt_2, ?lt_1)}, {loan(?lt_2, b : X, mut)}, {}), {}, {}, {pending_outlives(?lt_2, ?lt_1)})
            state1 = flow_state([scope(none, None, {}, None, [], []), scope(none, None, {}, None, [], []), scope(some(U(4)), None, {}, None, [(b, X), (p, &?lt_1 mut X)], [b : X, p : &?lt_1 mut X]), scope(some(U(4)), Some('l), {}, Some({* p}), [], [])], point_flow_state({pending_outlives(?lt_1, ?lt_3), pending_outlives(?lt_2, ?lt_1), pending_outlives(?lt_3, ?lt_4), pending_outlives(?lt_4, ?lt_1)}, {loan(?lt_2, b : X, mut), loan(?lt_3, *(p : &?lt_1 mut X) : <&?lt_1 mut X as Derefable>::Target, mut)}, {}), {labeled_flow_state('l, point_flow_state({pending_outlives(?lt_1, ?lt_3), pending_outlives(?lt_2, ?lt_1)}, {loan(?lt_2, b : X, mut), loan(?lt_3, *(p : &?lt_1 mut X) : <&?lt_1 mut X as Derefable>::Target, mut)}, {}))}, {}, {pending_outlives(?lt_1, ?lt_3), pending_outlives(?lt_2, ?lt_1), pending_outlives(?lt_3, ?lt_4), pending_outlives(?lt_4, ?lt_1)})

        the rule "borrow of disjoint places" at (nll.rs) failed because
          condition evaluated to false: `place_disjoint_from_place(&loan.place, &access.place)`
            &loan.place = *(p : &?lt_1 mut X) : <&?lt_1 mut X as Derefable>::Target
            &access.place = *(p : &?lt_1 mut X) : <&?lt_1 mut X as Derefable>::Target

        the rule "loan_cannot_outlive" at (nll.rs) failed because
          condition evaluated to false: `!outlived_by_loan.contains(&lifetime.upcast())`
            outlived_by_loan = {?lt_1, ?lt_3, ?lt_4}
            &lifetime.upcast() = ?lt_1

        the rule "write-indirect" at (nll.rs) failed because
          pattern `TypedPlaceExpressionData::Deref(place_loaned_ref)` did not match value `p`

        the rule "write-indirect" at (nll.rs) failed because
          condition evaluated to false: `place_accessed.is_prefix_of(place_loaned_ref)`
            place_accessed = *(p : &?lt_1 mut X) : <&?lt_1 mut X as Derefable>::Target
            place_loaned_ref = p : &?lt_1 mut X

        the rule "borrow of disjoint places" at (nll.rs) failed because
          condition evaluated to false: `place_disjoint_from_place(&loan.place, &access.place)`
            &loan.place = *(p : &?lt_1 mut X) : <&?lt_1 mut X as Derefable>::Target
            &access.place = *(p : &?lt_1 mut X) : <&?lt_1 mut X as Derefable>::Target

        the rule "loan_cannot_outlive" at (nll.rs) failed because
          condition evaluated to false: `!outlived_by_loan.contains(&lifetime.upcast())`
            outlived_by_loan = {?lt_1, ?lt_3, ?lt_4}
            &lifetime.upcast() = ?lt_1

        the rule "write-indirect" at (nll.rs) failed because
          pattern `TypedPlaceExpressionData::Deref(place_loaned_ref)` did not match value `p`

        the rule "write-indirect" at (nll.rs) failed because
          condition evaluated to false: `place_accessed.is_prefix_of(place_loaned_ref)`
            place_accessed = *(p : &?lt_1 mut X) : <&?lt_1 mut X as Derefable>::Target
            place_loaned_ref = p : &?lt_1 mut X"#]]);

    FormalityTest::new(feature_gate_program(
        POLONIUS_UNLOCKED_GATE,
        ISSUE_57165_CONDITIONAL,
    ))
    .skip_execute()
    .ok();
}

Source location: tests/borrowck.rs:4066

#[test]
fn issue_57165_conditional_with_indirection() {
    // [nll]: rustc passes
    FormalityTest::new(feature_gate_program(
        NLL_GATE,
        ISSUE_57165_CONDITIONAL_WITH_INDIRECTION,
    ))
    .skip_execute()
    .ok();

    // [polonius]: rustc passes
    FormalityTest::new(feature_gate_program(
        POLONIUS_ALPHA_GATE,
        ISSUE_57165_CONDITIONAL_WITH_INDIRECTION,
    ))
    .skip_execute()
    .ok();

    // [legacy]: rustc passes
    FormalityTest::new(feature_gate_program(
        POLONIUS_UNLOCKED_GATE,
        ISSUE_57165_CONDITIONAL_WITH_INDIRECTION,
    ))
    .skip_execute()
    .ok();
}

Source location: tests/borrowck.rs:4074

#[test]
fn issue_57165_conditional_with_indirection() {
    // [nll]: rustc passes
    FormalityTest::new(feature_gate_program(
        NLL_GATE,
        ISSUE_57165_CONDITIONAL_WITH_INDIRECTION,
    ))
    .skip_execute()
    .ok();

    // [polonius]: rustc passes
    FormalityTest::new(feature_gate_program(
        POLONIUS_ALPHA_GATE,
        ISSUE_57165_CONDITIONAL_WITH_INDIRECTION,
    ))
    .skip_execute()
    .ok();

    // [legacy]: rustc passes
    FormalityTest::new(feature_gate_program(
        POLONIUS_UNLOCKED_GATE,
        ISSUE_57165_CONDITIONAL_WITH_INDIRECTION,
    ))
    .skip_execute()
    .ok();
}

Source location: tests/borrowck.rs:4082

#[test]
fn issue_57165_conditional_with_indirection() {
    // [nll]: rustc passes
    FormalityTest::new(feature_gate_program(
        NLL_GATE,
        ISSUE_57165_CONDITIONAL_WITH_INDIRECTION,
    ))
    .skip_execute()
    .ok();

    // [polonius]: rustc passes
    FormalityTest::new(feature_gate_program(
        POLONIUS_ALPHA_GATE,
        ISSUE_57165_CONDITIONAL_WITH_INDIRECTION,
    ))
    .skip_execute()
    .ok();

    // [legacy]: rustc passes
    FormalityTest::new(feature_gate_program(
        POLONIUS_UNLOCKED_GATE,
        ISSUE_57165_CONDITIONAL_WITH_INDIRECTION,
    ))
    .skip_execute()
    .ok();
}

Source location: tests/borrowck.rs:4137

#[test]
fn issue_46859_to_refs() {
    // [nll]: rustc passes
    FormalityTest::new(feature_gate_program(NLL_GATE, ISSUE_46859_TO_REFS))
        .skip_execute()
        .ok();

    // [polonius]: rustc passes
    FormalityTest::new(feature_gate_program(
        POLONIUS_ALPHA_GATE,
        ISSUE_46859_TO_REFS,
    ))
    .skip_execute()
    .ok();

    // [legacy]: rustc passes
    FormalityTest::new(feature_gate_program(
        POLONIUS_UNLOCKED_GATE,
        ISSUE_46859_TO_REFS,
    ))
    .skip_execute()
    .ok();
}

Source location: tests/borrowck.rs:4145

#[test]
fn issue_46859_to_refs() {
    // [nll]: rustc passes
    FormalityTest::new(feature_gate_program(NLL_GATE, ISSUE_46859_TO_REFS))
        .skip_execute()
        .ok();

    // [polonius]: rustc passes
    FormalityTest::new(feature_gate_program(
        POLONIUS_ALPHA_GATE,
        ISSUE_46859_TO_REFS,
    ))
    .skip_execute()
    .ok();

    // [legacy]: rustc passes
    FormalityTest::new(feature_gate_program(
        POLONIUS_UNLOCKED_GATE,
        ISSUE_46859_TO_REFS,
    ))
    .skip_execute()
    .ok();
}

Source location: tests/borrowck.rs:4153

#[test]
fn issue_46859_to_refs() {
    // [nll]: rustc passes
    FormalityTest::new(feature_gate_program(NLL_GATE, ISSUE_46859_TO_REFS))
        .skip_execute()
        .ok();

    // [polonius]: rustc passes
    FormalityTest::new(feature_gate_program(
        POLONIUS_ALPHA_GATE,
        ISSUE_46859_TO_REFS,
    ))
    .skip_execute()
    .ok();

    // [legacy]: rustc passes
    FormalityTest::new(feature_gate_program(
        POLONIUS_UNLOCKED_GATE,
        ISSUE_46859_TO_REFS,
    ))
    .skip_execute()
    .ok();
}

Source location: tests/borrowck.rs:4191

#[test]
fn issue_46859_to_refs2() {
    // [nll]: rustc passes.
    FormalityTest::new(feature_gate_program(NLL_GATE, ISSUE_46859_TO_REFS2))
        .skip_execute()
        .ok();

    // [polonius]: rustc passes.
    FormalityTest::new(feature_gate_program(
        POLONIUS_ALPHA_GATE,
        ISSUE_46859_TO_REFS2,
    ))
    .skip_execute()
    .ok();

    // [legacy]: rustc passes.
    FormalityTest::new(feature_gate_program(
        POLONIUS_UNLOCKED_GATE,
        ISSUE_46859_TO_REFS2,
    ))
    .skip_execute()
    .ok();
}

Source location: tests/borrowck.rs:4199

#[test]
fn issue_46859_to_refs2() {
    // [nll]: rustc passes.
    FormalityTest::new(feature_gate_program(NLL_GATE, ISSUE_46859_TO_REFS2))
        .skip_execute()
        .ok();

    // [polonius]: rustc passes.
    FormalityTest::new(feature_gate_program(
        POLONIUS_ALPHA_GATE,
        ISSUE_46859_TO_REFS2,
    ))
    .skip_execute()
    .ok();

    // [legacy]: rustc passes.
    FormalityTest::new(feature_gate_program(
        POLONIUS_UNLOCKED_GATE,
        ISSUE_46859_TO_REFS2,
    ))
    .skip_execute()
    .ok();
}

Source location: tests/borrowck.rs:4207

#[test]
fn issue_46859_to_refs2() {
    // [nll]: rustc passes.
    FormalityTest::new(feature_gate_program(NLL_GATE, ISSUE_46859_TO_REFS2))
        .skip_execute()
        .ok();

    // [polonius]: rustc passes.
    FormalityTest::new(feature_gate_program(
        POLONIUS_ALPHA_GATE,
        ISSUE_46859_TO_REFS2,
    ))
    .skip_execute()
    .ok();

    // [legacy]: rustc passes.
    FormalityTest::new(feature_gate_program(
        POLONIUS_UNLOCKED_GATE,
        ISSUE_46859_TO_REFS2,
    ))
    .skip_execute()
    .ok();
}

Source location: tests/borrowck.rs:4256

#[test]
fn issue_46859_to_refs3() {
    FormalityTest::new(feature_gate_program(NLL_GATE, ISSUE_46859_TO_REFS3))
        .skip_execute()
        .ok();

    FormalityTest::new(feature_gate_program(
        POLONIUS_ALPHA_GATE,
        ISSUE_46859_TO_REFS3,
    ))
    .skip_execute()
    .ok();

    FormalityTest::new(feature_gate_program(
        POLONIUS_UNLOCKED_GATE,
        ISSUE_46859_TO_REFS3,
    ))
    .skip_execute()
    .ok();
}

Source location: tests/borrowck.rs:4263

#[test]
fn issue_46859_to_refs3() {
    FormalityTest::new(feature_gate_program(NLL_GATE, ISSUE_46859_TO_REFS3))
        .skip_execute()
        .ok();

    FormalityTest::new(feature_gate_program(
        POLONIUS_ALPHA_GATE,
        ISSUE_46859_TO_REFS3,
    ))
    .skip_execute()
    .ok();

    FormalityTest::new(feature_gate_program(
        POLONIUS_UNLOCKED_GATE,
        ISSUE_46859_TO_REFS3,
    ))
    .skip_execute()
    .ok();
}

Source location: tests/borrowck.rs:4270

#[test]
fn issue_46859_to_refs3() {
    FormalityTest::new(feature_gate_program(NLL_GATE, ISSUE_46859_TO_REFS3))
        .skip_execute()
        .ok();

    FormalityTest::new(feature_gate_program(
        POLONIUS_ALPHA_GATE,
        ISSUE_46859_TO_REFS3,
    ))
    .skip_execute()
    .ok();

    FormalityTest::new(feature_gate_program(
        POLONIUS_UNLOCKED_GATE,
        ISSUE_46859_TO_REFS3,
    ))
    .skip_execute()
    .ok();
}

Source location: tests/borrowck.rs:4394

#[test]
fn issue_46859_decoder_next() {
    // [nll]: rustc errors
    FormalityTest::new(feature_gate_program(NLL_GATE, ISSUE_46859_DECODER_NEXT))
        .skip_execute()
        .err(expect_test::expect![[r#"
            the rule "fixed-point" at (nll.rs) failed because
              condition evaluated to false: `state0 == state1`
                state0 = flow_state([scope(some(U(1)), None, {}, None, [(d, &!lt_1 mut Decoder)], [d : &!lt_1 mut Decoder]), scope(some(U(1)), None, {}, None, [], []), scope(some(U(3)), None, {}, None, [], []), scope(some(U(3)), Some('l), {}, Some({(* d) . buf_read}), [], [])], point_flow_state({pending_outlives(!lt_1, ?lt_2), pending_outlives(?lt_2, ?lt_3), pending_outlives(?lt_3, !lt_1)}, {}, {}), {}, {}, {pending_outlives(!lt_1, ?lt_2), pending_outlives(?lt_2, ?lt_3), pending_outlives(?lt_3, !lt_1)})
                state1 = flow_state([scope(some(U(1)), None, {}, None, [(d, &!lt_1 mut Decoder)], [d : &!lt_1 mut Decoder]), scope(some(U(1)), None, {}, None, [], []), scope(some(U(3)), None, {}, None, [], []), scope(some(U(3)), Some('l), {}, Some({(* d) . buf_read}), [], [])], point_flow_state({pending_outlives(!lt_1, ?lt_2), pending_outlives(?lt_2, ?lt_3), pending_outlives(?lt_3, !lt_1)}, {loan(?lt_2, *(d : &!lt_1 mut Decoder) : <&!lt_1 mut Decoder as Derefable>::Target . buf_read[Decoder , struct] : u32, mut)}, {}), {}, {}, {pending_outlives(!lt_1, ?lt_2), pending_outlives(?lt_2, ?lt_3), pending_outlives(?lt_3, !lt_1)})

            the rule "borrow of disjoint places" at (nll.rs) failed because
              condition evaluated to false: `place_disjoint_from_place(&loan.place, &access.place)`
                &loan.place = *(d : &!lt_1 mut Decoder) : <&!lt_1 mut Decoder as Derefable>::Target . buf_read[Decoder , struct] : u32
                &access.place = *(d : &!lt_1 mut Decoder) : <&!lt_1 mut Decoder as Derefable>::Target . buf_read[Decoder , struct] : u32

            the rule "loan_cannot_outlive" at (nll.rs) failed because
              condition evaluated to false: `!outlived_by_loan.contains(&lifetime.upcast())`
                outlived_by_loan = {!lt_1, ?lt_2, ?lt_3}
                &lifetime.upcast() = !lt_1

            the rule "loan_not_required_by_universal_regions" at (nll.rs) failed because
              condition evaluated to false: `outlived_by_loan.iter().all(|p| match p
              {
                  Parameter::Ty(_) => false, Parameter::Lt(lt) => match lt.as_ref()
                  {
                      Lt::Static => false, Lt::Variable(Variable::UniversalVar(_)) => false,
                      Lt::Variable(Variable::ExistentialVar(_)) => true,
                      Lt::Variable(Variable::BoundVar(_)) =>
                      panic!("cannot outlive a bound var"), Lt::Erased => true,
                  }, Parameter::Const(_) => panic!("cannot outlive a constant"),
              })`

            the rule "write-indirect" at (nll.rs) failed because
              pattern `TypedPlaceExpressionData::Deref(place_loaned_ref)` did not match value `*(d : &!lt_1 mut Decoder) : <&!lt_1 mut Decoder as Derefable>::Target . buf_read[Decoder , struct]`

            the rule "write-indirect" at (nll.rs) failed because
              pattern `TypedPlaceExpressionData::Deref(place_loaned_ref)` did not match value `d`

            the rule "write-indirect" at (nll.rs) failed because
              condition evaluated to false: `place_accessed.is_prefix_of(place_loaned_ref)`
                place_accessed = *(d : &!lt_1 mut Decoder) : <&!lt_1 mut Decoder as Derefable>::Target . buf_read[Decoder , struct] : u32
                place_loaned_ref = d : &!lt_1 mut Decoder

            the rule "borrow of disjoint places" at (nll.rs) failed because
              condition evaluated to false: `place_disjoint_from_place(&loan.place, &access.place)`
                &loan.place = *(d : &!lt_1 mut Decoder) : <&!lt_1 mut Decoder as Derefable>::Target . buf_read[Decoder , struct] : u32
                &access.place = *(d : &!lt_1 mut Decoder) : <&!lt_1 mut Decoder as Derefable>::Target . buf_read[Decoder , struct] : u32

            the rule "loan_cannot_outlive" at (nll.rs) failed because
              condition evaluated to false: `!outlived_by_loan.contains(&lifetime.upcast())`
                outlived_by_loan = {!lt_1, ?lt_2, ?lt_3}
                &lifetime.upcast() = !lt_1

            the rule "loan_not_required_by_universal_regions" at (nll.rs) failed because
              condition evaluated to false: `outlived_by_loan.iter().all(|p| match p
              {
                  Parameter::Ty(_) => false, Parameter::Lt(lt) => match lt.as_ref()
                  {
                      Lt::Static => false, Lt::Variable(Variable::UniversalVar(_)) => false,
                      Lt::Variable(Variable::ExistentialVar(_)) => true,
                      Lt::Variable(Variable::BoundVar(_)) =>
                      panic!("cannot outlive a bound var"), Lt::Erased => true,
                  }, Parameter::Const(_) => panic!("cannot outlive a constant"),
              })`

            the rule "write-indirect" at (nll.rs) failed because
              pattern `TypedPlaceExpressionData::Deref(place_loaned_ref)` did not match value `*(d : &!lt_1 mut Decoder) : <&!lt_1 mut Decoder as Derefable>::Target . buf_read[Decoder , struct]`

            the rule "write-indirect" at (nll.rs) failed because
              pattern `TypedPlaceExpressionData::Deref(place_loaned_ref)` did not match value `d`

            the rule "write-indirect" at (nll.rs) failed because
              condition evaluated to false: `place_accessed.is_prefix_of(place_loaned_ref)`
                place_accessed = *(d : &!lt_1 mut Decoder) : <&!lt_1 mut Decoder as Derefable>::Target . buf_read[Decoder , struct] : u32
                place_loaned_ref = d : &!lt_1 mut Decoder"#]]);

    // [polonius]: rustc passes
    FormalityTest::new(feature_gate_program(
        POLONIUS_ALPHA_GATE,
        ISSUE_46859_DECODER_NEXT,
    ))
    .skip_execute()
    .ok();

    // [legacy]: rustc passes
    FormalityTest::new(feature_gate_program(
        POLONIUS_UNLOCKED_GATE,
        ISSUE_46859_DECODER_NEXT,
    ))
    .skip_execute()
    .ok();
}

Source location: tests/borrowck.rs:4402

#[test]
fn issue_46859_decoder_next() {
    // [nll]: rustc errors
    FormalityTest::new(feature_gate_program(NLL_GATE, ISSUE_46859_DECODER_NEXT))
        .skip_execute()
        .err(expect_test::expect![[r#"
            the rule "fixed-point" at (nll.rs) failed because
              condition evaluated to false: `state0 == state1`
                state0 = flow_state([scope(some(U(1)), None, {}, None, [(d, &!lt_1 mut Decoder)], [d : &!lt_1 mut Decoder]), scope(some(U(1)), None, {}, None, [], []), scope(some(U(3)), None, {}, None, [], []), scope(some(U(3)), Some('l), {}, Some({(* d) . buf_read}), [], [])], point_flow_state({pending_outlives(!lt_1, ?lt_2), pending_outlives(?lt_2, ?lt_3), pending_outlives(?lt_3, !lt_1)}, {}, {}), {}, {}, {pending_outlives(!lt_1, ?lt_2), pending_outlives(?lt_2, ?lt_3), pending_outlives(?lt_3, !lt_1)})
                state1 = flow_state([scope(some(U(1)), None, {}, None, [(d, &!lt_1 mut Decoder)], [d : &!lt_1 mut Decoder]), scope(some(U(1)), None, {}, None, [], []), scope(some(U(3)), None, {}, None, [], []), scope(some(U(3)), Some('l), {}, Some({(* d) . buf_read}), [], [])], point_flow_state({pending_outlives(!lt_1, ?lt_2), pending_outlives(?lt_2, ?lt_3), pending_outlives(?lt_3, !lt_1)}, {loan(?lt_2, *(d : &!lt_1 mut Decoder) : <&!lt_1 mut Decoder as Derefable>::Target . buf_read[Decoder , struct] : u32, mut)}, {}), {}, {}, {pending_outlives(!lt_1, ?lt_2), pending_outlives(?lt_2, ?lt_3), pending_outlives(?lt_3, !lt_1)})

            the rule "borrow of disjoint places" at (nll.rs) failed because
              condition evaluated to false: `place_disjoint_from_place(&loan.place, &access.place)`
                &loan.place = *(d : &!lt_1 mut Decoder) : <&!lt_1 mut Decoder as Derefable>::Target . buf_read[Decoder , struct] : u32
                &access.place = *(d : &!lt_1 mut Decoder) : <&!lt_1 mut Decoder as Derefable>::Target . buf_read[Decoder , struct] : u32

            the rule "loan_cannot_outlive" at (nll.rs) failed because
              condition evaluated to false: `!outlived_by_loan.contains(&lifetime.upcast())`
                outlived_by_loan = {!lt_1, ?lt_2, ?lt_3}
                &lifetime.upcast() = !lt_1

            the rule "loan_not_required_by_universal_regions" at (nll.rs) failed because
              condition evaluated to false: `outlived_by_loan.iter().all(|p| match p
              {
                  Parameter::Ty(_) => false, Parameter::Lt(lt) => match lt.as_ref()
                  {
                      Lt::Static => false, Lt::Variable(Variable::UniversalVar(_)) => false,
                      Lt::Variable(Variable::ExistentialVar(_)) => true,
                      Lt::Variable(Variable::BoundVar(_)) =>
                      panic!("cannot outlive a bound var"), Lt::Erased => true,
                  }, Parameter::Const(_) => panic!("cannot outlive a constant"),
              })`

            the rule "write-indirect" at (nll.rs) failed because
              pattern `TypedPlaceExpressionData::Deref(place_loaned_ref)` did not match value `*(d : &!lt_1 mut Decoder) : <&!lt_1 mut Decoder as Derefable>::Target . buf_read[Decoder , struct]`

            the rule "write-indirect" at (nll.rs) failed because
              pattern `TypedPlaceExpressionData::Deref(place_loaned_ref)` did not match value `d`

            the rule "write-indirect" at (nll.rs) failed because
              condition evaluated to false: `place_accessed.is_prefix_of(place_loaned_ref)`
                place_accessed = *(d : &!lt_1 mut Decoder) : <&!lt_1 mut Decoder as Derefable>::Target . buf_read[Decoder , struct] : u32
                place_loaned_ref = d : &!lt_1 mut Decoder

            the rule "borrow of disjoint places" at (nll.rs) failed because
              condition evaluated to false: `place_disjoint_from_place(&loan.place, &access.place)`
                &loan.place = *(d : &!lt_1 mut Decoder) : <&!lt_1 mut Decoder as Derefable>::Target . buf_read[Decoder , struct] : u32
                &access.place = *(d : &!lt_1 mut Decoder) : <&!lt_1 mut Decoder as Derefable>::Target . buf_read[Decoder , struct] : u32

            the rule "loan_cannot_outlive" at (nll.rs) failed because
              condition evaluated to false: `!outlived_by_loan.contains(&lifetime.upcast())`
                outlived_by_loan = {!lt_1, ?lt_2, ?lt_3}
                &lifetime.upcast() = !lt_1

            the rule "loan_not_required_by_universal_regions" at (nll.rs) failed because
              condition evaluated to false: `outlived_by_loan.iter().all(|p| match p
              {
                  Parameter::Ty(_) => false, Parameter::Lt(lt) => match lt.as_ref()
                  {
                      Lt::Static => false, Lt::Variable(Variable::UniversalVar(_)) => false,
                      Lt::Variable(Variable::ExistentialVar(_)) => true,
                      Lt::Variable(Variable::BoundVar(_)) =>
                      panic!("cannot outlive a bound var"), Lt::Erased => true,
                  }, Parameter::Const(_) => panic!("cannot outlive a constant"),
              })`

            the rule "write-indirect" at (nll.rs) failed because
              pattern `TypedPlaceExpressionData::Deref(place_loaned_ref)` did not match value `*(d : &!lt_1 mut Decoder) : <&!lt_1 mut Decoder as Derefable>::Target . buf_read[Decoder , struct]`

            the rule "write-indirect" at (nll.rs) failed because
              pattern `TypedPlaceExpressionData::Deref(place_loaned_ref)` did not match value `d`

            the rule "write-indirect" at (nll.rs) failed because
              condition evaluated to false: `place_accessed.is_prefix_of(place_loaned_ref)`
                place_accessed = *(d : &!lt_1 mut Decoder) : <&!lt_1 mut Decoder as Derefable>::Target . buf_read[Decoder , struct] : u32
                place_loaned_ref = d : &!lt_1 mut Decoder"#]]);

    // [polonius]: rustc passes
    FormalityTest::new(feature_gate_program(
        POLONIUS_ALPHA_GATE,
        ISSUE_46859_DECODER_NEXT,
    ))
    .skip_execute()
    .ok();

    // [legacy]: rustc passes
    FormalityTest::new(feature_gate_program(
        POLONIUS_UNLOCKED_GATE,
        ISSUE_46859_DECODER_NEXT,
    ))
    .skip_execute()
    .ok();
}

Source location: tests/borrowck.rs:4536

#[test]
fn issue_92985_filtering_lending_iterator() {
    // [nll]: rustc errors
    FormalityTest::new(feature_gate_program(NLL_GATE, ISSUE_92985_FILTER_NEXT))
        .skip_execute()
        .err(expect_test::expect![[r#"
            the rule "fixed-point" at (nll.rs) failed because
              condition evaluated to false: `state0 == state1`
                state0 = flow_state([scope(some(U(1)), None, {}, None, [(f, &!lt_1 mut Filter)], [f : &!lt_1 mut Filter]), scope(some(U(1)), None, {}, None, [], []), scope(some(U(4)), None, {}, None, [], []), scope(some(U(4)), Some('l), {}, Some({(* f) . iter, (* f) . predicate}), [], [])], point_flow_state({pending_outlives(!lt_1, ?lt_2), pending_outlives(!lt_1, ?lt_3), pending_outlives(?lt_2, !lt_1), pending_outlives(?lt_2, ?lt_4)}, {}, {}), {}, {}, {pending_outlives(!lt_1, ?lt_2), pending_outlives(!lt_1, ?lt_3), pending_outlives(?lt_2, !lt_1), pending_outlives(?lt_2, ?lt_4)})
                state1 = flow_state([scope(some(U(1)), None, {}, None, [(f, &!lt_1 mut Filter)], [f : &!lt_1 mut Filter]), scope(some(U(1)), None, {}, None, [], []), scope(some(U(4)), None, {}, None, [], []), scope(some(U(4)), Some('l), {}, Some({(* f) . iter, (* f) . predicate}), [], [])], point_flow_state({pending_outlives(!lt_1, ?lt_2), pending_outlives(!lt_1, ?lt_3), pending_outlives(?lt_2, !lt_1), pending_outlives(?lt_2, ?lt_4)}, {loan(?lt_2, *(f : &!lt_1 mut Filter) : <&!lt_1 mut Filter as Derefable>::Target . iter[Filter , struct] : u32, mut), loan(?lt_3, *(f : &!lt_1 mut Filter) : <&!lt_1 mut Filter as Derefable>::Target . predicate[Filter , struct] : u32, mut)}, {}), {labeled_flow_state('l, point_flow_state({pending_outlives(!lt_1, ?lt_2), pending_outlives(!lt_1, ?lt_3), pending_outlives(?lt_2, !lt_1), pending_outlives(?lt_2, ?lt_4)}, {loan(?lt_2, *(f : &!lt_1 mut Filter) : <&!lt_1 mut Filter as Derefable>::Target . iter[Filter , struct] : u32, mut)}, {}))}, {}, {pending_outlives(!lt_1, ?lt_2), pending_outlives(!lt_1, ?lt_3), pending_outlives(?lt_2, !lt_1), pending_outlives(?lt_2, ?lt_4)})

            the rule "borrow of disjoint places" at (nll.rs) failed because
              condition evaluated to false: `place_disjoint_from_place(&loan.place, &access.place)`
                &loan.place = *(f : &!lt_1 mut Filter) : <&!lt_1 mut Filter as Derefable>::Target . iter[Filter , struct] : u32
                &access.place = *(f : &!lt_1 mut Filter) : <&!lt_1 mut Filter as Derefable>::Target . iter[Filter , struct] : u32

            the rule "loan_cannot_outlive" at (nll.rs) failed because
              condition evaluated to false: `!outlived_by_loan.contains(&lifetime.upcast())`
                outlived_by_loan = {!lt_1, ?lt_2, ?lt_3, ?lt_4}
                &lifetime.upcast() = !lt_1

            the rule "loan_not_required_by_universal_regions" at (nll.rs) failed because
              condition evaluated to false: `outlived_by_loan.iter().all(|p| match p
              {
                  Parameter::Ty(_) => false, Parameter::Lt(lt) => match lt.as_ref()
                  {
                      Lt::Static => false, Lt::Variable(Variable::UniversalVar(_)) => false,
                      Lt::Variable(Variable::ExistentialVar(_)) => true,
                      Lt::Variable(Variable::BoundVar(_)) =>
                      panic!("cannot outlive a bound var"), Lt::Erased => true,
                  }, Parameter::Const(_) => panic!("cannot outlive a constant"),
              })`

            the rule "write-indirect" at (nll.rs) failed because
              pattern `TypedPlaceExpressionData::Deref(place_loaned_ref)` did not match value `*(f : &!lt_1 mut Filter) : <&!lt_1 mut Filter as Derefable>::Target . iter[Filter , struct]`

            the rule "write-indirect" at (nll.rs) failed because
              pattern `TypedPlaceExpressionData::Deref(place_loaned_ref)` did not match value `f`

            the rule "write-indirect" at (nll.rs) failed because
              condition evaluated to false: `place_accessed.is_prefix_of(place_loaned_ref)`
                place_accessed = *(f : &!lt_1 mut Filter) : <&!lt_1 mut Filter as Derefable>::Target . iter[Filter , struct] : u32
                place_loaned_ref = f : &!lt_1 mut Filter

            the rule "borrow of disjoint places" at (nll.rs) failed because
              condition evaluated to false: `place_disjoint_from_place(&loan.place, &access.place)`
                &loan.place = *(f : &!lt_1 mut Filter) : <&!lt_1 mut Filter as Derefable>::Target . iter[Filter , struct] : u32
                &access.place = *(f : &!lt_1 mut Filter) : <&!lt_1 mut Filter as Derefable>::Target . iter[Filter , struct] : u32

            the rule "loan_cannot_outlive" at (nll.rs) failed because
              condition evaluated to false: `!outlived_by_loan.contains(&lifetime.upcast())`
                outlived_by_loan = {!lt_1, ?lt_2, ?lt_3, ?lt_4}
                &lifetime.upcast() = !lt_1

            the rule "loan_not_required_by_universal_regions" at (nll.rs) failed because
              condition evaluated to false: `outlived_by_loan.iter().all(|p| match p
              {
                  Parameter::Ty(_) => false, Parameter::Lt(lt) => match lt.as_ref()
                  {
                      Lt::Static => false, Lt::Variable(Variable::UniversalVar(_)) => false,
                      Lt::Variable(Variable::ExistentialVar(_)) => true,
                      Lt::Variable(Variable::BoundVar(_)) =>
                      panic!("cannot outlive a bound var"), Lt::Erased => true,
                  }, Parameter::Const(_) => panic!("cannot outlive a constant"),
              })`

            the rule "write-indirect" at (nll.rs) failed because
              pattern `TypedPlaceExpressionData::Deref(place_loaned_ref)` did not match value `*(f : &!lt_1 mut Filter) : <&!lt_1 mut Filter as Derefable>::Target . iter[Filter , struct]`

            the rule "write-indirect" at (nll.rs) failed because
              pattern `TypedPlaceExpressionData::Deref(place_loaned_ref)` did not match value `f`

            the rule "write-indirect" at (nll.rs) failed because
              condition evaluated to false: `place_accessed.is_prefix_of(place_loaned_ref)`
                place_accessed = *(f : &!lt_1 mut Filter) : <&!lt_1 mut Filter as Derefable>::Target . iter[Filter , struct] : u32
                place_loaned_ref = f : &!lt_1 mut Filter"#]]);

    // [polonius]: rustc passes
    FormalityTest::new(feature_gate_program(
        POLONIUS_ALPHA_GATE,
        ISSUE_92985_FILTER_NEXT,
    ))
    .skip_execute()
    .ok();

    // [legacy]: rustc passes
    FormalityTest::new(feature_gate_program(
        POLONIUS_UNLOCKED_GATE,
        ISSUE_92985_FILTER_NEXT,
    ))
    .skip_execute()
    .ok();
}

Source location: tests/borrowck.rs:4544

#[test]
fn issue_92985_filtering_lending_iterator() {
    // [nll]: rustc errors
    FormalityTest::new(feature_gate_program(NLL_GATE, ISSUE_92985_FILTER_NEXT))
        .skip_execute()
        .err(expect_test::expect![[r#"
            the rule "fixed-point" at (nll.rs) failed because
              condition evaluated to false: `state0 == state1`
                state0 = flow_state([scope(some(U(1)), None, {}, None, [(f, &!lt_1 mut Filter)], [f : &!lt_1 mut Filter]), scope(some(U(1)), None, {}, None, [], []), scope(some(U(4)), None, {}, None, [], []), scope(some(U(4)), Some('l), {}, Some({(* f) . iter, (* f) . predicate}), [], [])], point_flow_state({pending_outlives(!lt_1, ?lt_2), pending_outlives(!lt_1, ?lt_3), pending_outlives(?lt_2, !lt_1), pending_outlives(?lt_2, ?lt_4)}, {}, {}), {}, {}, {pending_outlives(!lt_1, ?lt_2), pending_outlives(!lt_1, ?lt_3), pending_outlives(?lt_2, !lt_1), pending_outlives(?lt_2, ?lt_4)})
                state1 = flow_state([scope(some(U(1)), None, {}, None, [(f, &!lt_1 mut Filter)], [f : &!lt_1 mut Filter]), scope(some(U(1)), None, {}, None, [], []), scope(some(U(4)), None, {}, None, [], []), scope(some(U(4)), Some('l), {}, Some({(* f) . iter, (* f) . predicate}), [], [])], point_flow_state({pending_outlives(!lt_1, ?lt_2), pending_outlives(!lt_1, ?lt_3), pending_outlives(?lt_2, !lt_1), pending_outlives(?lt_2, ?lt_4)}, {loan(?lt_2, *(f : &!lt_1 mut Filter) : <&!lt_1 mut Filter as Derefable>::Target . iter[Filter , struct] : u32, mut), loan(?lt_3, *(f : &!lt_1 mut Filter) : <&!lt_1 mut Filter as Derefable>::Target . predicate[Filter , struct] : u32, mut)}, {}), {labeled_flow_state('l, point_flow_state({pending_outlives(!lt_1, ?lt_2), pending_outlives(!lt_1, ?lt_3), pending_outlives(?lt_2, !lt_1), pending_outlives(?lt_2, ?lt_4)}, {loan(?lt_2, *(f : &!lt_1 mut Filter) : <&!lt_1 mut Filter as Derefable>::Target . iter[Filter , struct] : u32, mut)}, {}))}, {}, {pending_outlives(!lt_1, ?lt_2), pending_outlives(!lt_1, ?lt_3), pending_outlives(?lt_2, !lt_1), pending_outlives(?lt_2, ?lt_4)})

            the rule "borrow of disjoint places" at (nll.rs) failed because
              condition evaluated to false: `place_disjoint_from_place(&loan.place, &access.place)`
                &loan.place = *(f : &!lt_1 mut Filter) : <&!lt_1 mut Filter as Derefable>::Target . iter[Filter , struct] : u32
                &access.place = *(f : &!lt_1 mut Filter) : <&!lt_1 mut Filter as Derefable>::Target . iter[Filter , struct] : u32

            the rule "loan_cannot_outlive" at (nll.rs) failed because
              condition evaluated to false: `!outlived_by_loan.contains(&lifetime.upcast())`
                outlived_by_loan = {!lt_1, ?lt_2, ?lt_3, ?lt_4}
                &lifetime.upcast() = !lt_1

            the rule "loan_not_required_by_universal_regions" at (nll.rs) failed because
              condition evaluated to false: `outlived_by_loan.iter().all(|p| match p
              {
                  Parameter::Ty(_) => false, Parameter::Lt(lt) => match lt.as_ref()
                  {
                      Lt::Static => false, Lt::Variable(Variable::UniversalVar(_)) => false,
                      Lt::Variable(Variable::ExistentialVar(_)) => true,
                      Lt::Variable(Variable::BoundVar(_)) =>
                      panic!("cannot outlive a bound var"), Lt::Erased => true,
                  }, Parameter::Const(_) => panic!("cannot outlive a constant"),
              })`

            the rule "write-indirect" at (nll.rs) failed because
              pattern `TypedPlaceExpressionData::Deref(place_loaned_ref)` did not match value `*(f : &!lt_1 mut Filter) : <&!lt_1 mut Filter as Derefable>::Target . iter[Filter , struct]`

            the rule "write-indirect" at (nll.rs) failed because
              pattern `TypedPlaceExpressionData::Deref(place_loaned_ref)` did not match value `f`

            the rule "write-indirect" at (nll.rs) failed because
              condition evaluated to false: `place_accessed.is_prefix_of(place_loaned_ref)`
                place_accessed = *(f : &!lt_1 mut Filter) : <&!lt_1 mut Filter as Derefable>::Target . iter[Filter , struct] : u32
                place_loaned_ref = f : &!lt_1 mut Filter

            the rule "borrow of disjoint places" at (nll.rs) failed because
              condition evaluated to false: `place_disjoint_from_place(&loan.place, &access.place)`
                &loan.place = *(f : &!lt_1 mut Filter) : <&!lt_1 mut Filter as Derefable>::Target . iter[Filter , struct] : u32
                &access.place = *(f : &!lt_1 mut Filter) : <&!lt_1 mut Filter as Derefable>::Target . iter[Filter , struct] : u32

            the rule "loan_cannot_outlive" at (nll.rs) failed because
              condition evaluated to false: `!outlived_by_loan.contains(&lifetime.upcast())`
                outlived_by_loan = {!lt_1, ?lt_2, ?lt_3, ?lt_4}
                &lifetime.upcast() = !lt_1

            the rule "loan_not_required_by_universal_regions" at (nll.rs) failed because
              condition evaluated to false: `outlived_by_loan.iter().all(|p| match p
              {
                  Parameter::Ty(_) => false, Parameter::Lt(lt) => match lt.as_ref()
                  {
                      Lt::Static => false, Lt::Variable(Variable::UniversalVar(_)) => false,
                      Lt::Variable(Variable::ExistentialVar(_)) => true,
                      Lt::Variable(Variable::BoundVar(_)) =>
                      panic!("cannot outlive a bound var"), Lt::Erased => true,
                  }, Parameter::Const(_) => panic!("cannot outlive a constant"),
              })`

            the rule "write-indirect" at (nll.rs) failed because
              pattern `TypedPlaceExpressionData::Deref(place_loaned_ref)` did not match value `*(f : &!lt_1 mut Filter) : <&!lt_1 mut Filter as Derefable>::Target . iter[Filter , struct]`

            the rule "write-indirect" at (nll.rs) failed because
              pattern `TypedPlaceExpressionData::Deref(place_loaned_ref)` did not match value `f`

            the rule "write-indirect" at (nll.rs) failed because
              condition evaluated to false: `place_accessed.is_prefix_of(place_loaned_ref)`
                place_accessed = *(f : &!lt_1 mut Filter) : <&!lt_1 mut Filter as Derefable>::Target . iter[Filter , struct] : u32
                place_loaned_ref = f : &!lt_1 mut Filter"#]]);

    // [polonius]: rustc passes
    FormalityTest::new(feature_gate_program(
        POLONIUS_ALPHA_GATE,
        ISSUE_92985_FILTER_NEXT,
    ))
    .skip_execute()
    .ok();

    // [legacy]: rustc passes
    FormalityTest::new(feature_gate_program(
        POLONIUS_UNLOCKED_GATE,
        ISSUE_92985_FILTER_NEXT,
    ))
    .skip_execute()
    .ok();
}

Source location: tests/borrowck.rs:4618

#[test]
fn flow_sensitive_invariance_use_it() {
    // [nll]: rustc errors
    FormalityTest::new(feature_gate_program(
        NLL_GATE,
        FLOW_SENSITIVE_INVARIANCE_USE_IT,
    ))
    .skip_execute()
    .err(expect_test::expect![[r#"
        crates/formality-rust/src/prove/prove_via.rs:8:1: no applicable rules for prove_via { goal: !lt_1 : !lt_2, via: @ wf(?lt_0), assumptions: {@ wf(?lt_0)}, env: Env { variables: [!lt_1, !lt_2, ?lt_0], bias: Soundness, pending: [], allow_pending_outlives: false } }

        crates/formality-rust/src/prove/prove_outlives.rs:8:1: no applicable rules for prove_outlives { a: !lt_1, b: !lt_2, assumptions: {@ wf(?lt_0)}, env: Env { variables: [!lt_1, !lt_2, ?lt_0], bias: Soundness, pending: [], allow_pending_outlives: false } }"#]]);

    // [polonius]: rustc errors
    FormalityTest::new(feature_gate_program(
        POLONIUS_ALPHA_GATE,
        FLOW_SENSITIVE_INVARIANCE_USE_IT,
    ))
    .skip_execute()
    .err(expect_test::expect![[r#"
        crates/formality-rust/src/prove/prove_via.rs:8:1: no applicable rules for prove_via { goal: !lt_1 : !lt_2, via: @ wf(?lt_0), assumptions: {@ wf(?lt_0)}, env: Env { variables: [!lt_1, !lt_2, ?lt_0], bias: Soundness, pending: [], allow_pending_outlives: false } }

        crates/formality-rust/src/prove/prove_outlives.rs:8:1: no applicable rules for prove_outlives { a: !lt_1, b: !lt_2, assumptions: {@ wf(?lt_0)}, env: Env { variables: [!lt_1, !lt_2, ?lt_0], bias: Soundness, pending: [], allow_pending_outlives: false } }"#]]);

    // [legacy]: rustc passes
    FormalityTest::new(feature_gate_program(
        POLONIUS_UNLOCKED_GATE,
        FLOW_SENSITIVE_INVARIANCE_USE_IT,
    ))
    .skip_execute()
    .ok();
}

Source location: tests/borrowck.rs:4711

#[test]
fn flow_sensitive_invariance_same_region() {
    // [nll]: rustc passes.
    FormalityTest::new(feature_gate_program(
        NLL_GATE,
        FLOW_SENSITIVE_INVARIANCE_SAME_REGION,
    ))
    .skip_execute()
    .ok();

    // [polonius]: rustc passes.
    FormalityTest::new(feature_gate_program(
        POLONIUS_ALPHA_GATE,
        FLOW_SENSITIVE_INVARIANCE_SAME_REGION,
    ))
    .skip_execute()
    .ok();

    // [legacy]: rustc passes.
    FormalityTest::new(feature_gate_program(
        POLONIUS_UNLOCKED_GATE,
        FLOW_SENSITIVE_INVARIANCE_SAME_REGION,
    ))
    .skip_execute()
    .ok();
}

Source location: tests/borrowck.rs:4719

#[test]
fn flow_sensitive_invariance_same_region() {
    // [nll]: rustc passes.
    FormalityTest::new(feature_gate_program(
        NLL_GATE,
        FLOW_SENSITIVE_INVARIANCE_SAME_REGION,
    ))
    .skip_execute()
    .ok();

    // [polonius]: rustc passes.
    FormalityTest::new(feature_gate_program(
        POLONIUS_ALPHA_GATE,
        FLOW_SENSITIVE_INVARIANCE_SAME_REGION,
    ))
    .skip_execute()
    .ok();

    // [legacy]: rustc passes.
    FormalityTest::new(feature_gate_program(
        POLONIUS_UNLOCKED_GATE,
        FLOW_SENSITIVE_INVARIANCE_SAME_REGION,
    ))
    .skip_execute()
    .ok();
}

Source location: tests/borrowck.rs:4727

#[test]
fn flow_sensitive_invariance_same_region() {
    // [nll]: rustc passes.
    FormalityTest::new(feature_gate_program(
        NLL_GATE,
        FLOW_SENSITIVE_INVARIANCE_SAME_REGION,
    ))
    .skip_execute()
    .ok();

    // [polonius]: rustc passes.
    FormalityTest::new(feature_gate_program(
        POLONIUS_ALPHA_GATE,
        FLOW_SENSITIVE_INVARIANCE_SAME_REGION,
    ))
    .skip_execute()
    .ok();

    // [legacy]: rustc passes.
    FormalityTest::new(feature_gate_program(
        POLONIUS_UNLOCKED_GATE,
        FLOW_SENSITIVE_INVARIANCE_SAME_REGION,
    ))
    .skip_execute()
    .ok();
}

Source location: tests/codegen.rs:64

fn main() -> () {
    let y: i32 = add_one(1_i32);
    println!(y);
}

Source location: tests/codegen.rs:79

fn main() -> () {
    let y: i32 = identity::<i32>(42_i32);
    println!(y);
}

Source location: tests/codegen.rs:141

fn main() -> () {
    let p: Pair = Pair { x: 10_i32, y: 20_i32 };
    println!(p.x);
    println!(p.y);
}

Source location: tests/codegen.rs:188

fn main() -> () {
    let a: i32 = f(1_i32);
    let b: i32 = f(2_i32);
    let c: i32 = f(3_i32);
    println!(a);
    println!(b);
    println!(c);
}

Source location: tests/codegen.rs:201

fn main() -> () {
    let y: i32 = f(f(42_i32));
    println!(y);
}

Source location: tests/codegen.rs:218

fn main() -> () {
    let r: i32 = outer(7_i32);
    println!(r);
}

Source location: tests/codegen.rs:238

fn main() -> () {
    a();
}

Source location: tests/codegen.rs:251

fn main() -> () {
    let r: i32 = first::<i32, bool>(10_i32, true);
    println!(r);
}

Source location: tests/codegen.rs:264

fn main() -> () {
    let w: Wrapper<i32> = Wrapper::<i32> { val: 42_i32 };
    println!(w.val);
}

Source location: tests/mir_typeck.rs:171

fn bar(v1: u32) -> u32 {
    let v0: u32 = foo(v1);
    return v0;
}

Source location: tests/mir_typeck.rs:234

fn foo (v1: u32) -> u32 {
    let v2: Dummy = Dummy { value: 1_u32, is_true: false };
    v2.value = 2_u32;
    return v1;
}

Source location: tests/mir_typeck.rs:345

fn bar(v1: u32) -> u32 {
    let v0: u32 = identity::<u32>(v1);
    return v0;
}

Source location: tests/mir_typeck.rs:857

fn foo<'a>(v1: &'a Pair) -> u32 {
    exists<'r0> {
        let v2: u32 = (*v1).value;
        return v2;
    }
}