message: syntax: release 0.6.13
diff: [package]
  name = "regex-syntax"
  -version = "0.6.12" #:version
  +version = "0.6.13" #:version
  authors = ["The Rust Project Developers"]
  license = "MIT/Apache-2.0"
  repository = "https://github.com/rust-lang/regex"
  