> Aug 29 2:31 AM PDT We are investigating connectivity issues, impacting requests made to AWS STS (Security Token Service). Other AWS Services are also seeing impact due to this issue. We are actively investigating this issue and will provide more information within the next 30 minutes.

あー障害情報でたな
https://health.aws.amazon.com/health/status

AWS STSへのアクセスが全滅している．これ障害だよな？