CI for mac os broken
Not sure what happened, but CI for mac os is broken. For example, https://gitlab.common-lisp.net/cmucl/cmucl/-/pipelines/9291 no longer passes. But it did pass in https://gitlab.common-lisp.net/cmucl/cmucl/-/pipelines/9243.
I don't know why; there weren't any real changes between the two pipeline runs, and I didn't change the Mac runner.