buildx failed with: ERROR: failed to solve: process "/bin/sh -c set -ex; if [ \"${RUST_RELEASE_MODE}\" = \"release\" ]; then cargo clean --release; cargo build --features \"${CARGO_BUILD_FEATURES}\" --release; mv \"./target/$CARGO_BUILD_TARGET/$RUST_RELEASE_MODE/lemmy_server\" /home/lemmy/lemmy_server; wget https://github.com/upx/upx/releases/download/v4.2.4/upx-4.2.4-arm64_linux.tar.xz; tar -xvf upx-4.2.4-arm64_linux.tar.xz; cp upx-4.2.4-arm64_linux/upx /usr/bin; upx --best --lzma /home/lemmy/lemmy_server; fi" did not complete successfully: exit code: 101