Migrate to cargo_embargo. am: b051631162

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/env_logger/+/2832450

Change-Id: I67e247018f62d8d22ebc8544bcf84c02233f0293
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>