CDSK-928 - add debug for Failure.type

Author: warcholprzemo

master/buildbot/process/buildstep.py

@@ -806,6 +806,10 @@ def failed(self, why):
             try:
                 self.addCompleteLog("err.text", why.getTraceback())
                 self.addHTMLLog("err.html", formatFailure(why))
+            except AttributeError:
+                klog.err_json(
+                    Failure(), "DEBUG formatting exc. why.type: %s %s" % (why.type, type(why.type))
+                )
             except Exception:
                 klog.err_json(Failure(), "error while formatting exceptions")