😁(NewQuant): add color_map_alpha for the tRNS chunk in the PNG format #44

	name: Rust CI
	on:
	push:
	branches: [ master ]
	pull_request:
	branches: [ master ]
	jobs:
	build:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	rust: ["1.34.2", stable, beta, nightly]
	command: [build, test]
	steps:
	- uses: actions/checkout@v2
	- run: rustup default ${{ matrix.rust }}
	- name: build
	run: >
	cargo build --verbose
	- name: test
	if: ${{ matrix.rust != '1.34.2' }}
	run: >
	cargo test --tests --benches
	# TODO: add criterion benchmarks?
	rustfmt:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- uses: actions-rs/toolchain@v1
	with:
	toolchain: stable
	override: true
	components: rustfmt
	- name: Run rustfmt check
	uses: actions-rs/cargo@v1
	with:
	command: fmt
	args: -- --check

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