mirror of https://github.com/rust-lang/rust
23 lines
914 B
Plaintext
23 lines
914 B
Plaintext
error: future cannot be sent between threads safely
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--> $DIR/issue-64130-non-send-future-diags.rs:23:13
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LL | is_send(foo());
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| ^^^^^ future returned by `foo` is not `Send`
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= help: within `impl Future<Output = ()>`, the trait `Send` is not implemented for `MutexGuard<'_, u32>`, which is required by `impl Future<Output = ()>: Send`
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note: future is not `Send` as this value is used across an await
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--> $DIR/issue-64130-non-send-future-diags.rs:17:11
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LL | let g = x.lock().unwrap();
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| - has type `MutexGuard<'_, u32>` which is not `Send`
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LL | baz().await;
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| ^^^^^ await occurs here, with `g` maybe used later
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note: required by a bound in `is_send`
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--> $DIR/issue-64130-non-send-future-diags.rs:9:15
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LL | fn is_send<T: Send>(t: T) { }
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| ^^^^ required by this bound in `is_send`
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error: aborting due to 1 previous error
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