https://bz.mercurial-scm.org/show_bug.cgi?id=6912

--- mercurial-6.8.1/tests/run-tests.py.orig
+++ mercurial-6.8.1/tests/run-tests.py
@@ -310,9 +310,9 @@
             start = time.time()
             while time.time() - start < timeout and p.returncode is None:
                 time.sleep(0.1)
-            p.timeout = True
-            vlog('# Timout reached for process %d' % p.pid)
             if p.returncode is None:
+                p.timeout = True
+                vlog('# Timeout reached for process %d' % p.pid)
                 terminate(p)
 
         threading.Thread(target=t).start()