cross testing Rust libs in Github Actions using @action-rs/cargo

cross_test.yml

# We could use `@actions-rs/cargo` Action ability to automatically install `cross` tool
# in order to compile our application for some unusual targets.

on: [push, pull_request]

name: Cross-test

jobs:
  build:
    name: Test
    runs-on: ubuntu-latest
    strategy:
      matrix:
        target:
          - armv7-unknown-linux-gnueabihf
          - powerpc64-unknown-linux-gnu
    steps:
      - uses: actions/checkout@v2
      - uses: actions-rs/toolchain@v1
        with:
          toolchain: stable
          target: ${{ matrix.target }}
          override: true
      - uses: actions-rs/cargo@v1
        with:
          use-cross: true
          command: test
          args: --target=${{ matrix.target }}