Start some cleanup, ripout `lending_iterator`, and use system-install… #63

	on: push
	name: CI
	jobs:
	lint:
	name: Lint
	runs-on: ubuntu-latest
	env:
	RUSTFLAGS: -D warnings
	CARGO_TERM_COLOR: always
	steps:
	- uses: actions/checkout@v3
	with:
	submodules: true
	fetch-depth: 0
	- uses: actions-rs/toolchain@v1
	with:
	# We need nightly for fmt
	toolchain: nightly
	override: true
	components: rustfmt, clippy
	- uses: Swatinem/rust-cache@v1
	- name: Lint (clippy)
	uses: actions-rs/cargo@v1
	with:
	command: clippy
	args: --all-targets
	- name: Lint (rustfmt)
	uses: actions-rs/cargo@v1
	with:
	command: fmt
	args: --all --check

	build:
	name: Build and test
	runs-on: ubuntu-latest
	strategy:
	matrix:
	rust-version: [stable, 1.57, nightly]
	fail-fast: false
	env:
	RUSTFLAGS: -D warnings
	CARGO_TERM_COLOR: always
	steps:
	- uses: actions/checkout@v3
	with:
	submodules: true
	fetch-depth: 0
	- uses: actions-rs/toolchain@v1
	with:
	toolchain: ${{ matrix.rust-version }}
	override: true
	components: llvm-tools-preview
	- uses: Swatinem/rust-cache@v1
	- name: Build all targets with
	uses: actions-rs/cargo@v1
	with:
	command: build
	args: --all-targets
	- name: Tests
	uses: actions-rs/cargo@v1
	with:
	command: test
	- name: Install cargo-llvm-cov
	uses: taiki-e/install-action@cargo-llvm-cov
	- name: Generate code coverage
	if: startsWith(matrix.rust-version, 'stable')
	run: cargo llvm-cov --workspace --lcov --output-path lcov.info
	- name: Upload coverage to Codecov
	if: startsWith(matrix.rust-version, 'stable')
	uses: codecov/codecov-action@v3
	with:
	files: lcov.info
	fail_ci_if_error: true

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