Build apparently succeeds, always fails at Delta generation step

[msdobrescu]

Luet version:

CPU architecture, OS, and Version:

Describe the bug

Every build in the community repo fails with a message like:
ERROR Error: Error met while generating delta: Failed saving image: Error response from daemon: reference does not exist

I don't see it build at all, actually. No emerge, no steps.

To Reproduce

Expected behavior

Logs

https://github.com/mocaccinoOS/community-repository/runs/7055165135?check_suite_focus=true#step:9:2100

Additional context

I was syncing community repo with the latest changes in the main repos. I've successfully rebuilt a batch of packages over night. Next morning I was trying to continue with the next batch. That failed early:

  ERROR    Error: while resolving join images: could not generate image hash: Error while generating compilespec for yip: Candidate not found: No versions found for: utils/yip->=0.7.3

I have added a repo that made it go further.

And so, it fails with this docker error.

[mudler]

After debugging with @msdobrescu this turned out to be a repository misconfiguration due to the cleanup plugin being too much aggressive. Closing