logwarning.patch

diff --git a/src/com/facebook/buck/io/AsynchronousDirectoryContentsCleaner.java b/src/com/facebook/buck/io/AsynchronousDirectoryContentsCleaner.java
index 0c540f4..567ab27 100644
--- a/src/com/facebook/buck/io/AsynchronousDirectoryContentsCleaner.java
+++ b/src/com/facebook/buck/io/AsynchronousDirectoryContentsCleaner.java
@@ -82,6 +82,7 @@ public class AsynchronousDirectoryContentsCleaner {
    * instance of directory cleaning will occur at a time.
    */
   public void startCleaningDirectory() {
+    LOG.warn("hello %s", "ben");
     executor.execute(
         new Runnable() {
           @Override
@@ -98,6 +99,7 @@ public class AsynchronousDirectoryContentsCleaner {
             } finally {
               LOG.debug("Done cleaning %s", pathToClean);
             }
+            throw new RuntimeException("oops");
           }
         });
   }