Check whether disk space is full.
diff --git a/Tools/buildbot/kill_python.bat b/Tools/buildbot/kill_python.bat
index e068cc7..7972bc4 100644
--- a/Tools/buildbot/kill_python.bat
+++ b/Tools/buildbot/kill_python.bat
@@ -1,3 +1,4 @@
 cd Tools\buildbot
+dir
 nmake /f kill_python.mak
 kill_python4.exe