diff -r c8e9a3636abe -r 888bd39ed555 mercurial/bundle2.py
--- a/mercurial/bundle2.py	Fri Nov 22 11:08:59 2019 -0800
+++ b/mercurial/bundle2.py	Tue Nov 19 18:38:17 2019 -0800
@@ -2372,7 +2372,7 @@
 
         if pushkeycompat:
 
-            def runhook():
+            def runhook(unused_success):
                 for hookargs in allhooks:
                     op.repo.hook(b'pushkey', **pycompat.strkwargs(hookargs))