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1Resolving Hex dependencies...2Resolution completed in 0.172s3Unchanged:4  circular_buffer 1.1.05  elixir_make 0.10.06  interactive_cmd 0.1.47  nerves 2.0.0-pre.28  nerves_discovery 0.1.59  nerves_logging 0.2.410  nerves_runtime 0.13.1311  nerves_system_bbb 2.30.212  nerves_system_br 1.34.413  nerves_system_mangopi_mq_pro 0.17.214  nerves_system_qemu_aarch64 0.4.215  nerves_system_rpi0 2.1.216  nerves_system_rpi3 2.1.217  nerves_system_rpi4 2.1.218  nerves_system_rpi5 2.1.219  nerves_system_trellis 0.5.020  nerves_system_x86_64 1.34.221  nerves_toolchain_aarch64_nerves_linux_gnu 15.3.122  nerves_toolchain_armv6_nerves_linux_gnueabihf 15.3.123  nerves_toolchain_armv7_nerves_linux_gnueabihf 15.3.124  nerves_toolchain_riscv64_nerves_linux_gnu 15.3.125  nerves_toolchain_x86_64_nerves_linux_musl 15.3.126  nerves_uevent 0.1.727  property_table 0.3.428  ring_logger 0.11.729  tablet 0.3.330  toolshed 0.5.031  uboot_env 1.0.232All dependencies have been fetched33  [GitHub] nerves_system_rpi3-portable-2.1.2-06EEB86.tar.gz34** (Nerves.InvalidPlan) The following environment variables shouldn't be set for host builds in the build plan: AR, AS, CC, CFLAGS, CROSSCOMPILE, CXX, CXXFLAGS, LD, LDFLAGS35    (nerves 2.0.0-pre.2) lib/nerves/build_plan/checks.ex:84: Nerves.BuildPlan.Checks.validate!/136    (nerves 2.0.0-pre.2) lib/nerves.ex:28: Nerves.export_env/037    (mix 1.20.3) lib/mix/task.ex:502: anonymous fn/3 in Mix.Task.run_task/538    (mix 1.20.3) lib/mix/task.ex:576: Mix.Task.run_alias/639    (mix 1.20.3) lib/mix/cli.ex:129: Mix.CLI.run_task/240    /home/nerves/.elixir/bin/mix:7: (file)