buildx failed with: ERROR: failed to solve: process "/bin/sh -c set -eux; case \"$TARGETPLATFORM\" in \"linux/386\") TINI_ARCH=\"i386\" ;; \"linux/amd64\") TINI_ARCH=\"amd64\" ;; \"linux/arm/v6\" | \"linux/arm/v7\") TINI_ARCH=\"armhf\" ;; \"linux/arm64\") TINI_ARCH=\"arm64\" ;; \"linux/ppc64le\") TINI_ARCH=\"ppc64le\" ;; *) echo \"Error: Unsupported TARGETPLATFORM '$TARGETPLATFORM'\" >&2; exit 1 ;; esac; curl -fL \"https://github.com/krallin/tini/releases/download/v${TINI_VERSION}/tini-${TINI_ARCH}\" -o /usr/local/bin/tini; curl -fL \"https://github.com/krallin/tini/releases/download/v${TINI_VERSION}/tini-${TINI_ARCH}.asc\" -o /usr/local/bin/tini.asc; curl -fL \"https://github.com/krallin/tini/releases/download/v${TINI_VERSION}/tini-${TINI_ARCH}.sha256sum\" -o /usr/local/bin/tini.sha256sum; GNUPGHOME=\"$(mktemp -d)\"; export GNUPGHOME; gpg --batch --keyserver keyserver.ubuntu.com --recv-keys \"${TINI_GPGKEY}\"; gpg --batch --verify /usr/local/bin/tini.asc /usr/local/bin/tini; gpgconf --kill all; sed -i \"s#tini-${TINI_ARCH}#/usr/local/bin/tini#\" /usr/local/bin/tini.sha256sum; sha256sum --check --strict /usr/local/bin/tini.sha256sum; rm -rf \"${GNUPGHOME}\" /usr/local/bin/tini.asc /usr/local/bin/tini.sha256sum; chmod +x /usr/local/bin/tini; tini --version" did not complete successfully: exit code: 2