Update Rust crate syn to v2 #112

	#
	# Configuration for GitHub-based CI, based on the stock GitHub Rust config.
	#
	name: Rust

	on:
	push:
	branches: [ main ]
	pull_request:
	branches: [ main ]

	jobs:
	check-style:
	runs-on: ubuntu-latest
	steps:
	# actions/checkout@v2
	- uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11
	- uses: actions-rs/toolchain@88dc2356392166efad76775c878094f4e83ff746
	with:
	toolchain: stable
	default: false
	components: rustfmt
	- name: Check style
	run: cargo fmt -- --check

	build-and-test:
	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	os: [ ubuntu-latest, macos-latest ]
	steps:
	# actions/checkout@v2
	- uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11
	- name: Build
	run: cargo build --tests --verbose
	- name: Run tests
	run: cargo test --verbose

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