add tests for async await · rust-lang/rust@5374688 (original) (raw)
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error: future cannot be sent between threads safely
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--> $DIR/async-await-let-else.rs:45:13
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|
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LL | is_send(foo(Some(true)));
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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 Rc<()>
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note: future is not Send as this value is used across an await
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--> $DIR/async-await-let-else.rs:8:14
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LL | let r = Rc::new(());
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| - has type Rc<()> which is not Send
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LL | bar().await
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| ^^^^^^ await occurs here, with r maybe used later
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LL | };
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| - r is later dropped here
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note: required by a bound in is_send
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--> $DIR/async-await-let-else.rs:16:15
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LL | fn is_send<T: Send>(_: T) {}
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| ^^^^ required by this bound in is_send
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error: future cannot be sent between threads safely
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--> $DIR/async-await-let-else.rs:47:13
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LL | is_send(foo2(Some(true)));
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| ^^^^^^^^^^^^^^^^ future returned by foo2 is not Send
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= help: within impl Future<Output = ()>, the trait Send is not implemented for Rc<()>
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note: future is not Send as this value is used across an await
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--> $DIR/async-await-let-else.rs:20:26
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LL | bar2(Rc::new(())).await
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| ----------- ^^^^^^ await occurs here, with Rc::new(()) maybe used later
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| |
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| has type Rc<()> which is not Send
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LL | };
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| - Rc::new(()) is later dropped here
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note: required by a bound in is_send
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--> $DIR/async-await-let-else.rs:16:15
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LL | fn is_send<T: Send>(_: T) {}
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| ^^^^ required by this bound in is_send
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error: future cannot be sent between threads safely
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--> $DIR/async-await-let-else.rs:49:13
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LL | is_send(foo3(Some(true)));
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| ^^^^^^^^^^^^^^^^ future returned by foo3 is not Send
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= help: within impl Future<Output = ()>, the trait Send is not implemented for Rc<()>
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note: future is not Send as this value is used across an await
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--> $DIR/async-await-let-else.rs:30:28
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LL | (Rc::new(()), bar().await);
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| ----------- ^^^^^^ await occurs here, with Rc::new(()) maybe used later
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| |
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| has type Rc<()> which is not Send
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note: Rc::new(()) is later dropped here
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--> $DIR/async-await-let-else.rs:30:35
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LL | (Rc::new(()), bar().await);
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| ^
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note: required by a bound in is_send
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--> $DIR/async-await-let-else.rs:16:15
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LL | fn is_send<T: Send>(_: T) {}
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| ^^^^ required by this bound in is_send
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error: future cannot be sent between threads safely
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--> $DIR/async-await-let-else.rs:51:13
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LL | is_send(foo4(Some(true)));
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| ^^^^^^^^^^^^^^^^ future returned by foo4 is not Send
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= help: within impl Future<Output = ()>, the trait Send is not implemented for Rc<()>
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note: future is not Send as this value is used across an await
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--> $DIR/async-await-let-else.rs:38:14
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LL | let r = Rc::new(());
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| - has type Rc<()> which is not Send
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LL | bar().await;
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| ^^^^^^ await occurs here, with r maybe used later
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...
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LL | };
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| - r is later dropped here
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note: required by a bound in is_send
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--> $DIR/async-await-let-else.rs:16:15
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LL | fn is_send<T: Send>(_: T) {}
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| ^^^^ required by this bound in is_send
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error: aborting due to 4 previous errors
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