mirror of https://github.com/rust-lang/rust
44 lines
2.0 KiB
Plaintext
44 lines
2.0 KiB
Plaintext
error: future cannot be sent between threads safely
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--> $DIR/async-fn-nonsend.rs:68:17
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LL | assert_send(non_send_temporary_in_match());
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ future returned by `non_send_temporary_in_match` is not `Send`
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= help: within `impl Future<Output = ()>`, the trait `Send` is not implemented for `Rc<()>`, 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/async-fn-nonsend.rs:33:26
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LL | match Some(non_send()) {
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| ---------------- has type `Option<impl Debug>` which is not `Send`
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LL | Some(_) => fut().await,
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| ^^^^^ await occurs here, with `Some(non_send())` maybe used later
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note: required by a bound in `assert_send`
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--> $DIR/async-fn-nonsend.rs:64:24
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LL | fn assert_send(_: impl Send) {}
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| ^^^^ required by this bound in `assert_send`
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error: future cannot be sent between threads safely
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--> $DIR/async-fn-nonsend.rs:70:17
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LL | assert_send(non_sync_with_method_call());
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^ future returned by `non_sync_with_method_call` is not `Send`
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= help: within `impl Future<Output = ()>`, the trait `Send` is not implemented for `dyn std::fmt::Write`, 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/async-fn-nonsend.rs:46:15
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LL | let f: &mut std::fmt::Formatter = &mut get_formatter();
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| --------------- has type `Formatter<'_>` which is not `Send`
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...
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LL | fut().await;
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| ^^^^^ await occurs here, with `get_formatter()` maybe used later
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note: required by a bound in `assert_send`
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--> $DIR/async-fn-nonsend.rs:64:24
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LL | fn assert_send(_: impl Send) {}
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| ^^^^ required by this bound in `assert_send`
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error: aborting due to 2 previous errors
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