buildx failed with: ERROR: failed to solve: process "/bin/sh -c apt-get update && apt-get install -y cmake flex bison build-essential libssl-dev ncurses-dev xz-utils bc rsync libguestfs-tools qemu-kvm qemu-utils linux-image-generic zstd binutils-dev elfutils libcap-dev libelf-dev libdw-dev python3-docutils && apt-get install -y g++ libelf-dev && apt-get install -y iproute2 iputils-ping && apt-get install -y cpu-checker qemu-kvm qemu-utils qemu-system-x86 qemu-system-s390x qemu-system-arm qemu-guest-agent ethtool keyutils iptables gawk && echo \"deb https://apt.llvm.org/${UBUNTU_VERSION}/ llvm-toolchain-${UBUNTU_VERSION} main\" > /etc/apt/sources.list.d/llvm.list && wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | apt-key add - && apt-get update && apt-get install -y clang lld llvm" did not complete successfully: exit code: 2

The following actions uses node12 which is deprecated and will be forced to run on node16: actions/checkout@v2. For more info: https://github.blog/changelog/2023-06-13-github-actions-all-actions-will-run-on-node16-instead-of-node12-by-default/