buildx failed with: ERROR: failed to solve: process "/bin/sh -c chmod +x /cura/get_release_info.sh && latestCura=$(/cura/get_release_info.sh url) && curaReleaseName=$(/cura/get_release_info.sh name) && curl -sSL ${latestCura} > ${curaReleaseName} && rm -f /cura/releaseInfo.json && chmod +x /cura/${curaReleaseName} && /cura/${curaReleaseName} --appimage-extract && sed -i 's/QT_QPA_PLATFORMTHEME=xdgdesktopportal/QT_QPA_PLATFORMTHEME=gtk3/' /cura/squashfs-root/AppRun && rm /cura/${curaReleaseName} && rm -rf /var/lib/apt/lists/* && apt-get autoclean && groupadd cura && useradd -g cura --create-home --home-dir /home/cura cura && mkdir -p /cura && mkdir -p /prints/ && chown -R cura:cura /cura/ /home/cura/ /prints/ && mkdir -p /home/cura/.config/ && echo \"XDG_DOWNLOAD_DIR=\\\"/prints/\\\"\" >> /home/cura/.config/user-dirs.dirs && echo \"file:///prints prints\" >> /home/cura/.gtk-bookmarks" did not complete successfully: exit code: 2