Update cargo submodule
diff --git a/src/tools/cargo b/src/tools/cargo
index 9fa462f..2a7c496 160000
--- a/src/tools/cargo
+++ b/src/tools/cargo
@@ -1 +1 @@
-Subproject commit 9fa462fe3a81e07e0bfdcc75c29d312c55113ebb
+Subproject commit 2a7c4960677971f88458b0f8b461a866836dff59