--- a/tests/test-demandimport.py.out	Tue Sep 27 21:56:00 2016 +0900
+++ b/tests/test-demandimport.py.out	Mon Sep 26 23:28:57 2016 +0900
@@ -16,4 +16,6 @@
 re = <unloaded module 'sys'>
 re.stderr = <open file '<whatever>', mode 'w' at 0x?>
 re = <proxied module 'sys'>
+contextlib = <unloaded module 'contextlib'>
+contextlib.unknownattr = ImportError: cannot import name unknownattr
 node = <module 'mercurial.node' from '?'>