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error[E0277]: `Sender<i32>` cannot be shared between threads safely
--> $DIR/issue-70935-complex-spans.rs:13:45
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LL | fn foo(tx: std::sync::mpsc::Sender<i32>) -> impl Future + Send {
| ^^^^^^^^^^^^^^^^^^ `Sender<i32>` cannot be shared between threads safely
|
= help: the trait `Sync` is not implemented for `Sender<i32>`
= note: required for `&Sender<i32>` to implement `Send`
note: required because it's used within this closure
--> $DIR/issue-70935-complex-spans.rs:17:13
|
LL | baz(|| async{
| ^^
note: required because it's used within this `async fn` body
--> $DIR/issue-70935-complex-spans.rs:10:67
|
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:16:5
|
LL | / async move {
LL | | baz(|| async{
LL | | foo(tx.clone());
LL | | }).await;
LL | | }
| |_____^
error: aborting due to previous error
For more information about this error, try `rustc --explain E0277`.
|
