message: Temporary fix for upstream Tower breakage
  tower-h2 has yet to be updated to track tower-rs/tower#ac1586748f5505336573f8829d22ad7bbcda825a, so this fixes the build for now.
diff: @@ -12,3 +12,8 @@ members = [
  "tokio-trace-macros",
  "tokio-trace-subscriber"
  ]
  +
  +[replace]
  +# This replacement is necessary until tower-h2 has been updated to
  +# track `NewService` moving to `tower-util`
  +"https://github.com/tower-rs/tower.git#tower-service:0.1.0" = { git = "https://github.com/tower-rs/tower", rev = "c5cb47d612439093dc4d8f04e70ea50778d8b8f7" }
  