message: Upgrade to Rust 2021
diff: @@ -11,7 +11,7 @@ keywords = ["unikernel", "libos"]
  categories = ["os"]
  repository = "https://github.com/hermitcore/rusty-hermit"
  documentation = "https://hermitcore.github.io/libhermit-rs/hermit/"
  -edition = "2018"
  +edition = "2021"
  description = "A Rust-based library operting system"
  exclude = [
  "/.github/*",
  