Test mutex locking
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@ -6,6 +6,9 @@ use std::intrinsics;
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fn main() {
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fn main() {
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let mutex = std::sync::Mutex::new(());
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mutex.lock().unwrap();
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let _ = ::std::iter::repeat('a' as u8).take(10).collect::<Vec<_>>();
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let _ = ::std::iter::repeat('a' as u8).take(10).collect::<Vec<_>>();
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let stderr = ::std::io::stderr();
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let stderr = ::std::io::stderr();
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let mut stderr = stderr.lock();
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let mut stderr = stderr.lock();
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