Instruction 90 should timeout?

gistfile1.txt

iex(87)> defmodule MyPlug do
...(87)>   import Plug.Conn
...(87)> 
...(87)>   def init(options) do
...(87)>     # initialize options
...(87)> 
...(87)>     options
...(87)>   end
...(87)> 
...(87)>   def call(conn, _opts) do
...(87)>     :timer.sleep(3000) 
...(87)>     conn |> send_resp(200, "burru")
...(87)>   end
...(87)> end
iex:87: warning: redefining module MyPlug
{:module, MyPlug,
 <<70, 79, 82, 49, 0, 0, 5, 244, 66, 69, 65, 77, 69, 120, 68, 99, 0, 0, 0, 185, 131, 104, 2, 100, 0, 14, 101, 108, 105, 120, 105, 114, 95, 100, 111, 99, 115, 95, 118, 49, 108, 0, 0, 0, 2, 104, 2, ...>>,
 {:call, 2}}

iex(88)> {:ok, _} = Plug.Adapters.Cowboy.http MyPlug, []
{:ok, #PID<0.716.0>}

iex(89)> HTTPoison.get("http://localhost:4000")
{:ok,
 %HTTPoison.Response{body: "burru",
  headers: %{"cache-control" => "max-age=0, private, must-revalidate",
    "connection" => "keep-alive", "content-length" => "5",
    "date" => "Sun, 24 May 2015 22:06:08 GMT", "server" => "Cowboy"},
  status_code: 200}}

iex(90)> HTTPoison.get("http://localhost:4000", [], [timeout: 1])
{:ok,
 %HTTPoison.Response{body: "burru",
  headers: %{"cache-control" => "max-age=0, private, must-revalidate",
    "connection" => "keep-alive", "content-length" => "5",
    "date" => "Sun, 24 May 2015 22:06:18 GMT", "server" => "Cowboy"},
  status_code: 200}}