     end
 
     test "Strip authorization header on redirect to a different domain", %{client: client} do
-      assert {:ok, env} =
+      assert {:ok, _env} =
                Tesla.post(client, "http://example.com/drop", "",
                  headers: [
                    {"content-type", "text/plain"},

    setup :setup_client

    test "Keep authorization header on redirect to the same domain", %{client: client} do
      assert {:ok, env} =
               Tesla.post(client, "http://example.com/keep", "",
                 headers: [
                   {"content-type", "text/plain"},

    end

    test "Keep custom host header on redirect to a different domain", %{client: client} do
      assert {:ok, _env} =
               Tesla.post(client, "http://example.com/keep", "",
                 headers: [
                   {"host", "example.xyz"}
