44     use std::sync::{Arc, Barrier};
60         let m1: Arc<Mutex<()>> = Default::default();  in test_mutex_deadlock()
61         let m2: Arc<Mutex<()>> = Default::default();  in test_mutex_deadlock()
62         let m3: Arc<Mutex<()>> = Default::default();  in test_mutex_deadlock()
63         let b = Arc::new(Barrier::new(4));  in test_mutex_deadlock()
105         let m1: Arc<Mutex<()>> = Default::default();  in test_mutex_deadlock_reentrant()
124         let m1: Arc<ReentrantMutex<()>> = Default::default();  in test_remutex_deadlock()
125         let m2: Arc<ReentrantMutex<()>> = Default::default();  in test_remutex_deadlock()
126         let m3: Arc<ReentrantMutex<()>> = Default::default();  in test_remutex_deadlock()
127         let b = Arc::new(Barrier::new(4));  in test_remutex_deadlock()
172         let m1: Arc<RwLock<()>> = Default::default();  in test_rwlock_deadlock()
173         let m2: Arc<RwLock<()>> = Default::default();  in test_rwlock_deadlock()
174         let m3: Arc<RwLock<()>> = Default::default();  in test_rwlock_deadlock()
175         let b = Arc::new(Barrier::new(4));  in test_rwlock_deadlock()
218         let m1: Arc<RwLock<()>> = Default::default();  in test_rwlock_deadlock_reentrant()