Merge "Update buck"
diff --git a/buckversion b/buckversion
index 4462205..4777b76 100644
--- a/buckversion
+++ b/buckversion
@@ -1 +1 @@
-75000f4273a399d2cd2768512639da80748877b7
+849f320a6fa8293615fa5d05592580d17692bfd3