Update clippy

Manishearth · Manishearth · commit e2885eb65696 · 2019-07-06T21:41:57.000-07:00
diff --git a/src/tools/clippy b/src/tools/clippy
@@ -1 +1 @@
-Subproject commit e3cb40e4f7e566ffe260b2b9d606485c7c22d642
+Subproject commit 316da7eb41f2c263963fc1b74fe9bb528860817f
