1FROM ubuntu:18.04 2RUN apt-get update && \ 3 apt-get install -y --no-install-recommends \ 4 ca-certificates \ 5 gcc \ 6 gcc-mips64-linux-gnuabi64 \ 7 libc6-dev \ 8 libc6-dev-mips64-cross \ 9 qemu-user-static \ 10 qemu-system-mips 11ENV CARGO_TARGET_MIPS64_UNKNOWN_LINUX_GNUABI64_LINKER=mips64-linux-gnuabi64-gcc \ 12 CARGO_TARGET_MIPS64_UNKNOWN_LINUX_GNUABI64_RUNNER=qemu-mips64-static \ 13 CC_mips64_unknown_linux_gnuabi64=mips64-linux-gnuabi64-gcc \ 14 QEMU_LD_PREFIX=/usr/mips64-linux-gnuabi64 \ 15 RUST_TEST_THREADS=1 16