[automerger skipped] Mark Android R (rvc-dev-plus-aosp-without-vendor@6692709) as merged am: 19ddfa96b3 -s ours am: f6b45b0438 -s ours am: 8b052418e4 -s ours

am skip reason: Change-Id I6af29ba2ac8fc203419da6665cd9824bbb3c3cc4 with SHA-1 55547b2579 is in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/external/rust/crates/proc-macro-hack/+/12469915

Change-Id: Icb83ddbce17c6166f2bcd594b59cf89c5273249d