BuildSingleRequest has nil CompletedChannel

[susamn]

func BuildRequests(context context.Context, task *FutureTask, size int) *Request {

	tasks := make([]*FutureTask, 0, size)
	tasks = append(tasks, task)
	return &Request{Ctx: context, Tasks: tasks, TaskCount: size, CompletedChannel: make(chan bool)}
}

compared to

func BuildSingleRequest(context context.Context, task *FutureTask) *Request {
	tasks := make([]*FutureTask, 1)
	tasks = append(tasks, task)
	return &Request{Ctx: context, Tasks: tasks}
}

[susamn]

Fixed