Various small fixes #1

	name: Elixir CI - Linux

	on: push

	jobs:
	ubuntu:
	runs-on: ubuntu-20.04
	name: Linux OTP ${{matrix.pair.otp-version}} / Elixir ${{matrix.pair.elixir-version}}
	strategy:
	matrix:
	pair:
	- otp-version: '27.0'
	elixir-version: '1.17.2'
	- otp-version: '26.2'
	elixir-version: '1.16.3'
	- otp-version: '25.3'
	elixir-version: '1.15.2'
	- otp-version: '24.3'
	elixir-version: '1.14.5'
	steps:
	- uses: actions/checkout@v1
	- uses: erlef/setup-beam@v1
	with:
	otp-version: ${{matrix.pair.otp-version}}
	elixir-version: ${{matrix.pair.elixir-version}}

	- uses: actions/cache@v1
	id: deps-cache
	with:
	path: deps
	key: ${{ runner.os }}-mix-${{ matrix.otp }}-${{ matrix.elixir }}-${{ hashFiles(format('{0}{1}', github.workspace, '/mix.lock')) }}

	- name: Install dependencies
	run: mix deps.get

	- uses: actions/cache@v1
	id: build-cache
	with:
	path: _build
	key: ${{ runner.os }}-build-${{ matrix.otp }}-${{ matrix.elixir }}-${{ hashFiles(format('{0}{1}', github.workspace, '/mix.lock')) }}

	- name: Compile base
	run: mix compile

	- name: Get Zig version
	id: zig-version
	run: mix eval "IO.puts(Zig.version())"

	- uses: actions/cache@v1
	id: zig-cache
	with:
	path: zig
	key: ${{ runner.os }}-zig-${{ steps.zig-version.outputs.stdout }}

	- name: Get Zig
	run: mix zig.get

	- name: Run Tests
	env:
	RUNNING_CI: "true"
	run: mix test --exclude no_ci

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