Fix a `todo!()` in `StdoutStream`. #19

	name: Build and Test
	on:
	push:
	branches:
	- main
	pull_request: {}

	jobs:
	test:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout the source code
	uses: actions/checkout@v2
	with:
	fetch-depth: 1
	submodules: recursive

	- name: Installs nightly toolchain
	run: \|
	rustup update nightly
	rustup component add rustfmt --toolchain nightly
	rustup default nightly

	- name: Formatting check
	run: cargo fmt --all -- --check

	- name: Run tests
	run: cargo test --all

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