message: bump the regex to 1.5
diff: @@ -32,7 +32,7 @@ tinytemplate = "1.1"
  cast = "0.2"
  num-traits = { version = "0.2", default-features = false, features = ["std"] }
  oorandom = "11.1"
  -regex = { version = "1.3", default-features = false, features = ["std"] }
  +regex = { version = "1.5", default-features = false, features = ["std"] }
  tabwriter = "1.2.1"
  termcolor = "1.1.2"
  unicode-width = "0.1.9"
  