Update clippy module to fix breakage

alexcrichton · alexcrichton · commit 0f84c8ef8f61 · 2018-11-20T13:48:12.000-08:00
diff --git a/src/tools/clippy b/src/tools/clippy
@@ -1 +1 @@
-Subproject commit b1d0343749bdc87e5cbbe7f1aeaa9d2a2c9dbc5b
+Subproject commit 246a77ebe8c9d640c76a82f3869c5272ba51346d
