Unauthorized using CircleCI credentials for pulls from Docker Hub

Feedback & Bug Reports
1

In the last 20 minutes or so, all of our persist-checkout steps are failing:

Starting container cimg/base:2021.04
Warning: No authentication provided, using CircleCI credentials for pulls from Docker Hub.
  image cache not found on this host, downloading cimg/base:2021.04

Error response from daemon: Head "https://registry-1.docker.io/v2/cimg/base/manifests/2021.04": unauthorized: incorrect username or password

This reads to me like a problem on the CircleCI side of things, vs. anything we can fix.

2

Ah, the status page is now reporting this. CircleCI Status - Dockerhub Preventing Builds