changing logger to use exception instead of error

Author: binarymatt

pyres/worker.py

@@ -201,7 +201,7 @@ def process(self, job=None):
             return job.perform()
         except Exception, e:
             exceptionType, exceptionValue, exceptionTraceback = sys.exc_info()
-            logger.error("%s failed: %s" % (job, e))
+            logger.exception("%s failed: %s" % (job, e))
             job.fail(exceptionTraceback)
             self.failed()
         else: