buildx failed with: ERROR: failed to build: failed to solve: process "/bin/sh -c set -eux; mkdir -p /tmp/dokuwiki_plugin_install; cd /tmp/dokuwiki_plugin_install; curl -fL -o smtp.zip ${SMTP_PLUGIN_PATH}; unzip smtp.zip; mkdir -p /dokuwiki/lib/plugins/smtp; cp -r ./splitbrain-dokuwiki-plugin-smtp* /dokuwiki/lib/plugins/smtp rm smtp.zip; rm -rf /tmp/dokuwiki_plugin_install" did not complete successfully: exit code: 1