Update cargo

diff --git a/src/tools/cargo b/src/tools/cargo
index 8a0d4d9c9abc74fd670353094387d62028b40ae9..6e07d2dfb7fc87b1c9489de41da4dafa239daf03 160000 (submodule)
--- a/src/tools/cargo
+++ b/src/tools/cargo
@@ -1 +1 @@
-Subproject commit 8a0d4d9c9abc74fd670353094387d62028b40ae9
+Subproject commit 6e07d2dfb7fc87b1c9489de41da4dafa239daf03