THRIFT-4405: fix cygwin on appveyor
diff --git a/test/crossrunner/run.py b/test/crossrunner/run.py
index ef8fb60..bb06d25 100644
--- a/test/crossrunner/run.py
+++ b/test/crossrunner/run.py
@@ -259,7 +259,7 @@
             raise
         logger.warn('Error executing [%s]', test.name, exc_info=True)
         return (retry_count, RESULT_ERROR)
-    except:
+    except Exception:
         logger.info('Interrupted execution', exc_info=True)
         if not async_mode:
             raise