for bucket in self.cache_buckets():
            with self._fc.read_transaction(bucket) as f:
                if not f:
>                   raise RuntimeError(
                        "Attempting to clean non existent cache bucket" f" {bucket.name}"
                    )
E                   RuntimeError: Attempting to clean non existent cache bucket nc

lib/spack/spack/solver/asp.py:660: RuntimeError

self = PosixPath('/Users/runner/.local/state/spack/tv6pwnm/misc-cache/concretization/hy/hyrtccditoupfm3s64poficxh5cisl6d')

    def stat(self, *, follow_symlinks=True):
        """
        Return the result of the stat() system call on this path, like
        os.stat() does.
        """
>       return os.stat(self, follow_symlinks=follow_symlinks)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
E       FileNotFoundError: [Errno 2] No such file or directory: '/Users/runner/.local/state/spack/tv6pwnm/misc-cache/concretization/hy/hyrtccditoupfm3s64poficxh5cisl6d'

        rm_reg.sort(key=lambda x: x.stat().st_mtime, reverse=True)