rust: update to 1.66.1

This release fixes CVE-2022-46176.

This also adds an environment variable that lets us fix b/265160991.

BUG=b:265149507, b:265160991
TEST=CQ

Change-Id: I7042fd4e414eac9f4717b6c56ccc511f26d7a505
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/overlays/chromiumos-overlay/+/4174680
Tested-by: George Burgess <gbiv@chromium.org>
Reviewed-by: Jordan Abrahams-Whitehead <ajordanr@google.com>
10 files changed