Request Document: go/android-rust-importing-crates
For CL Reviewers: go/android3p#cl-review
For Build Team: go/ab-third-party-imports
Bug: 360132122
Bug: 359646531
Test: none
Change-Id: I8e4c35835d8d2659ae467f9dcec48a5b618aee20
Signed-off-by: Neill Kapron <nkapron@google.com>