System.out.printf("%.2f Executing call.%n", (System.nanoTime() - startNanos) / 1e9f)
    try {
      call.execute().use { response ->
        System.out.printf(
          "%.2f Call was expected to fail, but completed: %s%n",
          (System.nanoTime() - startNanos) / 1e9f,
          response,
        )
      }
    } catch (e: IOException) {
      System.out.printf(
        "%.2f Call failed as expected: %s%n",

 * When the maximum concurrent streams limit is reduced, some allocations will be rescinded.
 * Attempting to create new streams on these allocations will fail.
 *
 * Note that an allocation may be released before its stream is completed. This is intended to make
 * bookkeeping easier for the caller: releasing the allocation as soon as the terminal stream has
 * been found. But only complete the stream once its data stream has been exhausted.
 */