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use std::thread;
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use std::sync::mpsc::channel;
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fn bar() {
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let (send, recv) = channel();
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let t = thread::spawn(|| {
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recv.recv().unwrap();
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//~^^ ERROR `std::sync::mpsc::Receiver<()>` cannot be shared between threads safely
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});
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send.send(());
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t.join().unwrap();
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}
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fn main() {}
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