Drop alias Datetime; use chrono::Datetime #409

	name: CI

	on:
	push:
	branches:
	- 'main'
	pull_request:

	env:
	CARGO_TERM_COLOR: always

	jobs:
	lints:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- name: Format
	run: \|
	cd rrule
	cargo fmt -- --check
	- name: Linting
	run: \|
	cd rrule
	# revert it back to the following line, the deprecated functions are removed from chrono
	# cargo clippy -- -D warnings
	cargo clippy
	- name: Cargo Doc
	run: \|
	cargo doc --no-deps --all-features --examples
	cargo test --doc -- --show-output

	test:
	needs: lints
	runs-on: ${{ matrix.target.os }}
	name: ${{ matrix.target.name }} / ${{ matrix.version }}
	strategy:
	matrix:
	target:
	- { name: Linux, os: ubuntu-latest, triple: x86_64-unknown-linux-gnu }
	- { name: macOS, os: macos-latest, triple: x86_64-apple-darwin }
	- { name: Windows, os: windows-2022, triple: x86_64-pc-windows-msvc }
	version:
	- 1.74.0 # MSRV
	- stable
	steps:
	- uses: actions/checkout@v2
	- name: Install ${{ matrix.version }}
	uses: actions-rs/toolchain@v1
	with:
	toolchain: ${{ matrix.version }}-${{ matrix.target.triple }}
	profile: minimal
	override: true
	- name: Run tests
	run: \|
	cd rrule
	cargo test --all-features --all-targets

	audit:
	needs: test
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- name: Audit
	run: \|
	cd rrule
	cargo update
	cargo audit
	# Allowed to fail, but this will notify us that some dependency might need an update.
	continue-on-error: true

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