[S3 输出] 当设置工作人员时出现奇数错误

We're trying to get more throughput with our S3 output plugin as we noticed that, when using the rewrite_tag filter plugin (basically to split a single containers logs into X number of streams), that plugin is generating loads of _emitter files_ on disk and no amount of increasing the `upload_timeout` on the `S3` plugin seems to help. So we thought maybe using `workers` would work now as I know in the past the support wasn't there. We tried it and are getting odd results. Below are 2 different errors we see when setting `workers 2` that we don't see otherwise.