error: generator cannot be sent between threads safely --> $DIR/partial-drop.rs:17:17 | LL | assert_send(|| { | _________________^ LL | | LL | | let guard = Bar { foo: Foo, x: 42 }; LL | | drop(guard.foo); LL | | yield; LL | | }); | |_____^ generator is not `Send` | = help: within `[generator@$DIR/partial-drop.rs:17:17: 17:19]`, the trait `Send` is not implemented for `Foo` = note: consider using `std::sync::Arc`; for more information visit note: generator is not `Send` as this value is used across a yield --> $DIR/partial-drop.rs:21:9 | LL | let guard = Bar { foo: Foo, x: 42 }; | ----- has type `Bar` which is not `Send` LL | drop(guard.foo); LL | yield; | ^^^^^ yield occurs here, with `guard` maybe used later LL | }); | - `guard` is later dropped here note: required by a bound in `assert_send` --> $DIR/partial-drop.rs:33:19 | LL | fn assert_send(_: T) {} | ^^^^ required by this bound in `assert_send` error: generator cannot be sent between threads safely --> $DIR/partial-drop.rs:24:17 | LL | assert_send(|| { | _________________^ LL | | LL | | let guard = Bar { foo: Foo, x: 42 }; LL | | let Bar { foo, x } = guard; LL | | drop(foo); LL | | yield; LL | | }); | |_____^ generator is not `Send` | = help: within `[generator@$DIR/partial-drop.rs:24:17: 24:19]`, the trait `Send` is not implemented for `Foo` = note: consider using `std::sync::Arc`; for more information visit note: generator is not `Send` as this value is used across a yield --> $DIR/partial-drop.rs:29:9 | LL | let guard = Bar { foo: Foo, x: 42 }; | ----- has type `Bar` which is not `Send` ... LL | yield; | ^^^^^ yield occurs here, with `guard` maybe used later LL | }); | - `guard` is later dropped here note: required by a bound in `assert_send` --> $DIR/partial-drop.rs:33:19 | LL | fn assert_send(_: T) {} | ^^^^ required by this bound in `assert_send` error: aborting due to 2 previous errors