Merge "Ignore deny and warn flags to rustc." into main am: cdee866686 am: 0793ee2751 am: c9e455e3d6

Original change: https://android-review.googlesource.com/c/platform/development/+/2843095

Change-Id: I123886f438c8edc52b0d5a92e8c7b63947774406
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>