Missing binary concatenation operator in Elixir gives no warning

test.ex

defmodule BinaryConcat do
  def run do
    data =
      <<65, 32, 119, 97>> <>
      <<114, 110, 105, 110>> # <- binary concatenation operator missing here
      <<103, 32, 112, 101>> <>
      <<114, 104, 97, 112, 115, 63>>

      IO.puts <<data :: binary>>
  end
end

BinaryConcat.run

test.exs

data =
  <<65, 32, 119, 97>> <>
  <<114, 110, 105, 110>> # <- binary concatenation operator missing here
  <<103, 32, 112, 101>> <>
  <<114, 104, 97, 112, 115, 63>>

IO.puts <<data :: binary>>