FROM ubuntu:16.04 RUN apt-get update && \ apt-get install -y --no-install-recommends \ ca-certificates curl gcc gcc-arm-none-eabi libc6-dev libcurl4-openssl-dev libssh2-1 libnewlib-dev RUN curl -LSfs https://japaric.github.io/trust/install.sh | \ sh -s -- --git japaric/xargo --tag v0.2.1 --target x86_64-unknown-linux-gnu --to /usr/bin ENV AR_thumbv7em_none_eabihf=arm-none-eabi-ar \ CARGO_TARGET_THUMBV7EM_NONE_EABIHF_LINKER=arm-none-eabi-gcc \ CC_thumbv7em_none_eabihf=arm-none-eabi-gcc \