buildx failed with: ERROR: failed to build: failed to solve: process "/bin/sh -c set -eux; ARCH=\"$(uname -m)\"; case \"$ARCH\" in x86_64) RTK_TARGET=\"x86_64-unknown-linux-musl\" ;; aarch64) RTK_TARGET=\"aarch64-unknown-linux-gnu\" ;; esac; curl -fsSL -o /tmp/rtk.tar.gz \"https://github.com/rtk-ai/rtk/releases/download/v${RTK_VERSION}/rtk-${RTK_TARGET}.tar.gz\"; tar -xzf /tmp/rtk.tar.gz -C /usr/local/bin rtk" did not complete successfully: exit code: 35