tests/ui/async-await/issue-67252-unnamed-future.drop_tracking.stderr

   1 error: future cannot be sent between threads safely
   2   --> $DIR/issue-67252-unnamed-future.rs:21:11
   3    |
   4 LL |       spawn(async {
   5    |  ___________^
   6 LL | |         let a = std::ptr::null_mut::<()>(); // `*mut ()` is not `Send`
   7 LL | |         AFuture.await;
   8 LL | |         drop(a);
   9 LL | |     });
  10    | |_____^ future created by async block is not `Send`
  11    |
  12    = help: within `[async block@$DIR/issue-67252-unnamed-future.rs:21:11: 25:6]`, the trait `Send` is not implemented for `*mut ()`
  13 note: future is not `Send` as this value is used across an await
  14   --> $DIR/issue-67252-unnamed-future.rs:23:16
  15    |
  16 LL |         let a = std::ptr::null_mut::<()>(); // `*mut ()` is not `Send`
  17    |             - has type `*mut ()` which is not `Send`
  18 LL |         AFuture.await;
  19    |                ^^^^^^ await occurs here, with `a` maybe used later
  20 LL |         drop(a);
  21 LL |     });
  22    |     - `a` is later dropped here
  23 note: required by a bound in `spawn`
  24   --> $DIR/issue-67252-unnamed-future.rs:9:13
  25    |
  26 LL | fn spawn<T: Send>(_: T) {}
  27    |             ^^^^ required by this bound in `spawn`
  28
  29 error: aborting due to previous error
  30