fix error 500 when runner token is invalid

django/jwt/views.py

@@ -141,9 +141,12 @@ def jwt_auth(request):
         return HttpResponse(status=401)
     username, password = base64.b64decode(credentials).decode('utf-8').split(':', 1)
     #log.debug('HTTP_AUTHORIZATION %s username %s', auth_header, username)
-    if username == "$token" and Runner.objects.get(token=password):
-        log.info("Token for runner called")
-        actor = Runner.objects.get(token=password)
+    if username == "$token":
+        try:
+            actor = Runner.objects.get(token=password)
+            log.info("Token for runner called")
+        except Runner.DoesNotExist:
+            return HttpResponse(status=401)
     else:
         try:
             actor = User.objects.get(email=username)