Index: subversion/tests/cmdline/svntest/main.py
===================================================================
--- subversion/tests/cmdline/svntest/main.py	(revision 22841)
+++ subversion/tests/cmdline/svntest/main.py	(working copy)
@@ -291,6 +291,7 @@
     exit_signal = wait_code % 256
 
     if exit_signal != 0:
+      map(sys.stdout.write, stderr_lines)
       raise SVNProcessTerminatedBySignal
 
   if verbose_mode: