tests/ui/coroutine/stalled-coroutine-obligations.stderr

error: future cannot be sent between threads safely
  --> $DIR/stalled-coroutine-obligations.rs:9:5
   |
LL | /     Box::new(async {
LL | |
LL | |         let non_send = null::<()>();
LL | |         &non_send;
LL | |         async {}.await
LL | |     })
   | |______^ future created by async block is not `Send`
   |
   = help: within `{async block@$DIR/stalled-coroutine-obligations.rs:9:14: 9:19}`, the trait `Send` is not implemented for `*const ()`
note: future is not `Send` as this value is used across an await
  --> $DIR/stalled-coroutine-obligations.rs:13:18
   |
LL |         let non_send = null::<()>();
   |             -------- has type `*const ()` which is not `Send`
LL |         &non_send;
LL |         async {}.await
   |                  ^^^^^ await occurs here, with `non_send` maybe used later
   = note: required for the cast from `Box<{async block@$DIR/stalled-coroutine-obligations.rs:9:14: 9:19}>` to `Box<dyn Send>`

error: future cannot be sent between threads safely
  --> $DIR/stalled-coroutine-obligations.rs:27:32
   |
LL |         let _: Box<dyn Send> = Box::new(fut);
   |                                ^^^^^^^^^^^^^ future created by async block is not `Send`
   |
   = help: the trait `Send` is not implemented for `dyn Trait`
note: future is not `Send` as this value is used across an await
  --> $DIR/stalled-coroutine-obligations.rs:25:22
   |
LL |             let _x = foo();
   |                 -- has type `Box<dyn Trait>` which is not `Send`
LL |             async {}.await;
   |                      ^^^^^ await occurs here, with `_x` maybe used later
   = note: required for the cast from `Box<{async block@$DIR/stalled-coroutine-obligations.rs:23:19: 23:24}>` to `Box<dyn Send>`

error: aborting due to 2 previous errors