buildx failed with: ERROR: failed to solve: failed to compute cache key: failed to calculate checksum of ref iel4qv35426plfg77hz6mr8k8::rfpeb3d3lqj03qfn0cwj5enlu: failed to walk /tmp/buildkit-mount1626989463/app/apps/goat: lstat /tmp/buildkit-mount1626989463/app/apps/goat: no such file or directory