Remove derives `Encodable`/`Decodable` and unstabilize attribute `#[bench]`#62507

Merged

bors merged 2 commits intorust-lang:masterfrom petrochenkov:macunstab

Aug 1, 2019

+226-298

Commits on Jul 31, 2019

Remove derives Encodable/Decodable and unstabilize attribute #[bench]
petrochenkov
committed
Drive-by fix: Update two tests failing in --pass check mode
petrochenkov
committed