buildx failed with: ERROR: failed to solve: process "/bin/sh -exc for version in $(git for-each-ref --shell --format='%(refname:lstrip=3)' | grep 'v[0-9]*\\.[0-9]*\\.x' | tr -d \"'\"); do echo \"Copying version ${version}\"; git checkout -f ${version}; cp -r /jolie-docs/theme /docs/; mdbook build; mkdir -p /usr/share/nginx/html/${version}; chown -R nginx:nginx book; cp -r -v book/. /usr/share/nginx/html/${version}; done" did not complete successfully: exit code: 101