message: Upgrade pnet_datalink to Rust 2021
diff: @@ -9,7 +9,7 @@ description = "Cross-platform, datalink layer networking."
  readme = "../README.md"
  keywords = ["networking", "datalink", "ethernet", "raw"]
  categories = ["network-programming"]
  -edition = "2018"
  +edition = "2021"
  [features]
  netmap = []
  