dev-lang/rust: upgrade to Rust 1.47.0

This CL is created by rust_uprev tool automatically.

BUG=chromium:1136579
TEST=Use CQ to test the new Rust version

Change-Id: Iaef465426aa6e06ffb1649f658a416751708755f
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/overlays/chromiumos-overlay/+/2472102
Reviewed-by: LaMont Jones <lamontjones@chromium.org>
Reviewed-by: George Burgess <gbiv@chromium.org>
Commit-Queue: LaMont Jones <lamontjones@chromium.org>
Tested-by: LaMont Jones <lamontjones@chromium.org>
17 files changed