server.enqueue(MockResponse(socketPolicy = StallSocketAtStart))
    val cancelDelayMillis = 300L
    val call = client.newCall(Request(server.url("/").newBuilder().scheme(scheme!!).build()))
    cancelLater(call, cancelDelayMillis)
    val startNanos = System.nanoTime()
    assertFailsWith<IOException> {
      call.execute()
    }
    val elapsedNanos = System.nanoTime() - startNanos