error: future cannot be sent between threads safely
  --> $DIR/issue-65436-raw-ptr-not-send.rs:17:17
   |
LL |       assert_send(async {
   |  _________________^
LL | |
LL | |         bar(Foo(std::ptr::null())).await;
LL | |     })
   | |_____^ future created by async block is not `Send`
   |
   = help: within `[async block@$DIR/issue-65436-raw-ptr-not-send.rs:17:17: 20:6]`, the trait `Send` is not implemented for `*const u8`
   = note: consider using `std::sync::Arc<*const u8>`; for more information visit <https://doc.rust-lang.org/book/ch16-03-shared-state.html>
note: future is not `Send` as this value is used across an await
  --> $DIR/issue-65436-raw-ptr-not-send.rs:19:36
   |
LL |         bar(Foo(std::ptr::null())).await;
   |                 ----------------   ^^^^^- `std::ptr::null()` is later dropped here
   |                 |                  |
   |                 |                  await occurs here, with `std::ptr::null()` maybe used later
   |                 has type `*const u8` which is not `Send`
help: consider moving this into a `let` binding to create a shorter lived borrow
  --> $DIR/issue-65436-raw-ptr-not-send.rs:19:13
   |
LL |         bar(Foo(std::ptr::null())).await;
   |             ^^^^^^^^^^^^^^^^^^^^^
note: required by a bound in `assert_send`
  --> $DIR/issue-65436-raw-ptr-not-send.rs:14:19
   |
LL | fn assert_send<T: Send>(_: T) {}
   |                   ^^^^ required by this bound in `assert_send`

error: aborting due to previous error