Index: subversion/tests/cmdline/svntest/main.py
===================================================================
--- subversion/tests/cmdline/svntest/main.py	(revision 17941)
+++ subversion/tests/cmdline/svntest/main.py	(working copy)
@@ -85,6 +85,9 @@
   "Exception raised if unable to copy a repository"
   pass
 
+class SVNRepositoryCreateFailure(Failure):
+  "Exception raised if unable to create a repository"
+  pass
 
 # Windows specifics
 if sys.platform == 'win32':
@@ -412,6 +415,9 @@
   for line in stderr:
     if line.find('Unknown FS type') != -1:
       raise Skip
+    else:
+      print >> sys.stderr, stderr
+      raise SVNRepositoryCreateFailure
 
   # Allow unauthenticated users to write to the repos, for ra_svn testing.
   file_append(os.path.join(path, "conf", "svnserve.conf"),