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task: update JoinHandle panic message (#3727)

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Alice Ryhl 2021-04-25 09:03:14 +02:00 committed by GitHub
parent 0ba1e3c3e1
commit 73466f4b6c
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tokio/src/runtime/task/core.rs
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@ -279,7 +279,7 @@ impl<T: Future> CoreStage<T> {
// Safety:: the caller ensures mutal exclusion to the field. // Safety:: the caller ensures mutal exclusion to the field.
match mem::replace(unsafe { &mut *ptr }, Stage::Consumed) { match mem::replace(unsafe { &mut *ptr }, Stage::Consumed) {
Stage::Finished(output) => output, Stage::Finished(output) => output,
_ => panic!("unexpected task state"), _ => panic!("JoinHandle polled after completion"),
} }
}) })
} }