FROM ubuntu:18.04 RUN apt-get update && apt-get install -y --no-install-recommends \ gcc \ ca-certificates \ libc6-dev \ gcc-arm-linux-gnueabihf \ libc6-dev-armhf-cross \ qemu-user \ make \ file ENV CARGO_TARGET_ARMV7_UNKNOWN_LINUX_GNUEABIHF_LINKER=arm-linux-gnueabihf-gcc \ CARGO_TARGET_ARMV7_UNKNOWN_LINUX_GNUEABIHF_RUNNER="qemu-arm -L /usr/arm-linux-gnueabihf" \ OBJDUMP=arm-linux-gnueabihf-objdump