Go apps refuse to build

I have two Go apps on v100+. Starting yesterday, I could not do any new deployments with flyctl deploy. I get this error for both apps. Anybody know a workaround?

==> Building image with Buildpacks
--> docker host: 20.10.12 linux x86_64
base: Pulling from paketobuildpacks/builder
4f4fb700ef54: Downloading

Error failed to fetch an image or build from source: failed to fetch builder image 'index.docker.io/paketobuildpacks/builder:base': Get "https://registry-1.docker.io/v2/": net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers)


Based on the error message, it seems to be an issue with the Docker registry. Perhaps they have since resolved it, since I just tried calling https://registry-1.docker.io/v2/ and it responded immediately (with the expected failure, requesting authentication). Could be worth tying the deploy again since other people were getting the same issue with it e.g