rustc-ap-serialize 562.0.0

Automatically published version of the package `serialize` in the rust-lang/rust repository from commit fc8765d6d8623b2b5b4ca1d526ed1d7beb3fce18 The publishing script for this crate lives at: https://github.com/alexcrichton/rustc-auto-publish

Support code for encoding and decoding types.