lint

Migrate from `backoff` to `backon` #1680

	name: lint
	on:
	pull_request:
	paths:
	- '**.rs'
	- '**.toml'
	- '**.yml'

	jobs:
	cargo-deny:
	name: cargo deny
	runs-on: ubuntu-latest
	strategy:
	matrix:
	checks:
	- advisories
	- bans licenses sources

	# Prevent sudden announcement of a new advisory from failing ci:
	continue-on-error: ${{ matrix.checks == 'advisories' }}

	steps:
	- uses: actions/checkout@v4
	- uses: EmbarkStudios/cargo-deny-action@v2
	with:
	command: check ${{ matrix.checks }}

	rustfmt:
	name: rustfmt
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- uses: dtolnay/rust-toolchain@nightly
	with:
	components: rustfmt
	- run: rustfmt +nightly --edition 2021 --check $(find . -type f -iname *.rs)

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