Add helpers to deserialize into `Option` or `Result` #86

	name: Rust
	on:
	pull_request:
	push:
	branches: main

	env:
	CARGO_INCREMENTAL: 0
	CARGO_PROFILE_DEV_DEBUG: 1
	CARGO_PROFILE_RELEASE_DEBUG: 1
	CARGO_TERM_COLOR: always
	RUST_BACKTRACE: short
	CARGO_NET_RETRY: 10
	RUSTUP_MAX_RETRIES: 10

	jobs:
	fmt:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- name: Install Rust
	uses: actions-rs/toolchain@v1
	with:
	toolchain: stable
	override: true
	- name: Format
	uses: actions-rs/cargo@v1
	with:
	command: fmt
	args: --all -- --check

	clippy:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- name: Install Rust
	uses: actions-rs/toolchain@v1
	with:
	toolchain: stable
	components: clippy
	override: true
	- name: Clippy
	uses: actions-rs/clippy-check@v1
	with:
	token: ${{ secrets.GITHUB_TOKEN }}
	args: --all-features --all-targets

	test:
	runs-on: ubuntu-latest
	timeout-minutes: 30
	steps:
	- uses: actions/checkout@v2
	- name: Install Rust
	uses: actions-rs/toolchain@v1
	with:
	toolchain: stable
	override: true
	- name: Install cargo-nextest
	uses: taiki-e/install-action@nextest
	- name: Build tests
	uses: actions-rs/cargo@v1
	with:
	command: nextest
	args: run --all-features --no-run
	- name: Run tests
	uses: actions-rs/cargo@v1
	with:
	command: nextest
	args: run --all-features --no-fail-fast --no-capture

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