diff --git a/ietf/submit/checkers.py b/ietf/submit/checkers.py
index 5b928f043..b7d8d6026 100644
--- a/ietf/submit/checkers.py
+++ b/ietf/submit/checkers.py
@@ -9,6 +9,7 @@ import shutil
 import tempfile
 import StringIO
 
+from collections import deque
 from django.conf import settings
 
 import debug                            # pyflakes:ignore
@@ -18,6 +19,8 @@ from ietf.utils.models import VersionInfo
 from ietf.utils.pipe import pipe
 from ietf.utils.test_runner import set_coverage_checking
 
+cmd_pipe_results = deque([], 4)
+
 class DraftSubmissionChecker():
     name = ""
 
@@ -71,6 +74,8 @@ class DraftIdnitsChecker(object):
         Error and warning list items are tuples:
             (line_number, line_text, message)
         """
+        global cmd_pipe_results
+
         items = []
         errors = 0
         warnings = 0
@@ -80,6 +85,7 @@ class DraftIdnitsChecker(object):
 
         cmd = "%s %s %s" % (settings.IDSUBMIT_IDNITS_BINARY, self.options, path)
         code, out, err = pipe(cmd)
+        cmd_pipe_results.append((code, out, err))
         if code != 0 or out == "":
             message = "idnits error: %s:\n  Error %s: %s" %( cmd, code, err)
             log(message)
@@ -204,6 +210,7 @@ class DraftYangChecker(object):
                 cmd_version = VersionInfo.objects.get(command=command).version
                 cmd = cmd_template.format(libs=modpath, model=path)
                 code, out, err = pipe(cmd)
+                cmd_pipe_results.append((code, out, err))
                 if code > 0 or len(err.strip()) > 0 :
                     error_lines = err.splitlines()
                     assertion('len(error_lines) > 0')
@@ -235,6 +242,7 @@ class DraftYangChecker(object):
                     cmd = cmd_template.format(model=path, rfclib=settings.SUBMIT_YANG_RFC_MODEL_DIR, tmplib=workdir,
                         draftlib=settings.SUBMIT_YANG_DRAFT_MODEL_DIR, ianalib=settings.SUBMIT_YANG_IANA_MODEL_DIR, )
                     code, out, err = pipe(cmd)
+                    cmd_pipe_results.append((code, out, err))
                     if code > 0 or len(err.strip()) > 0:
                         error_lines = err.splitlines()
                         for line in error_lines:
diff --git a/ietf/submit/tests.py b/ietf/submit/tests.py
index 1e8f3da05..c05be6a3e 100644
--- a/ietf/submit/tests.py
+++ b/ietf/submit/tests.py
@@ -31,6 +31,8 @@ from ietf.message.models import Message
 from ietf.name.models import FormalLanguageName
 from ietf.person.models import Person
 from ietf.person.factories import UserFactory, PersonFactory
+from ietf.submit.checkers import cmd_pipe_results
+
 from ietf.submit.models import Submission, Preapproval
 from ietf.submit.mail import add_submission_email, process_response_email
 from ietf.utils.mail import outbox, empty_outbox
@@ -1037,6 +1039,7 @@ class SubmitTests(TestCase):
         q = PyQuery(r.content)
         #
         self.assertContains(r, u'The yang validation returned 1 error')
+        self.assertIn('illegal keyword', cmd_pipe_results[-2][2])
         #
         m = q('#yang-validation-message').text()
         for command in ['xym', 'pyang', 'yanglint']: