Less intense tests

Author: Stjepan Glavina

tests/lock.rs

@@ -28,7 +28,7 @@ fn contention() {
 
         let tx = Arc::new(tx);
         let l = Lock::new(0i32);
-        let num_tasks = 10000;
+        let num_tasks = 100;
 
         for _ in 0..num_tasks {
             let tx = tx.clone();