Fix futures-task/METADATA am: 7d901038a3 am: f9883fdb2b am: 3abc7c582c am: 6186f8baad am: 2e6352bde2

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/futures-task/+/1413810

Change-Id: I166da9214be5f2999e3cbb78f707121e12b6e498