| error[E0277]: `*mut ()` cannot be shared between threads safely |
| --> $DIR/issue-70935-complex-spans.rs:15:23 |
| | |
| LL | fn foo(x: NotSync) -> impl Future + Send { |
| | ^^^^^^^^^^^^^^^^^^ `*mut ()` cannot be shared between threads safely |
| | |
| = help: within `NotSync`, the trait `Sync` is not implemented for `*mut ()` |
| note: required because it appears within the type `PhantomData<*mut ()>` |
| --> $SRC_DIR/core/src/marker.rs:LL:COL |
| note: required because it appears within the type `NotSync` |
| --> $DIR/issue-70935-complex-spans.rs:9:8 |
| | |
| LL | struct NotSync(PhantomData<*mut ()>); |
| | ^^^^^^^ |
| = note: required for `&NotSync` to implement `Send` |
| note: required because it's used within this closure |
| --> $DIR/issue-70935-complex-spans.rs:18:13 |
| | |
| LL | baz(|| async { |
| | ^^ |
| note: required because it's used within this `async` fn body |
| --> $DIR/issue-70935-complex-spans.rs:12:67 |
| | |
| LL | async fn baz<T>(_c: impl FnMut() -> T) where T: Future<Output=()> { |
| | ___________________________________________________________________^ |
| LL | | } |
| | |_^ |
| = note: required because it captures the following types: `impl Future<Output = ()>` |
| note: required because it's used within this `async` block |
| --> $DIR/issue-70935-complex-spans.rs:17:5 |
| | |
| LL | / async move { |
| LL | | baz(|| async { |
| LL | | foo(x.clone()); |
| LL | | }).await; |
| LL | | } |
| | |_____^ |
| |
| error: aborting due to previous error |
| |
| For more information about this error, try `rustc --explain E0277`. |
