buildx failed with: ERROR: failed to solve: process "/bin/sh -c if [ \"$TARGETPLATFORM\" = \"linux/amd64\" ]; then export TARGET=x86_64-unknown-linux-musl; elif [ \"$TARGETPLATFORM\" = \"linux/arm64\" ]; then export TARGET=aarch64-unknown-linux-musl; else echo \"Unsupported platform: $TARGETPLATFORM\"; exit 1; fi && cross build --release --target $TARGET" did not complete successfully: exit code: 1