Migrate to cargo_embargo. am: 3530b1801c am: 90818c117d

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/thiserror/+/2834455

Change-Id: Id2684207e7570e63bc079d9304960fd8d9eedbd0
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>