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// run-pass
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#![allow(unused_must_use)]
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#![allow(unused_mut)]
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// ignore-emscripten no threads support
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use std::thread;
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pub fn main() {
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let mut result = thread::spawn(child);
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println!("1");
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thread::yield_now();
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result.join();
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}
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fn child() { println!("2"); }
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