add optional defmt support for error types #77

	on:
	push:
	branches: [ staging, trying, master ]
	pull_request:

	name: Continuous integration

	env:
	RUSTFLAGS: '--deny warnings'

	jobs:
	ci-linux:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	# All generated code should be running on stable now
	rust: [stable]

	# The default target we're compiling on and for
	TARGET: [x86_64-unknown-linux-gnu, thumbv6m-none-eabi, thumbv7m-none-eabi]

	include:
	# Test MSRV
	- rust: 1.56.0 # keep in sync with manifest rust-version
	TARGET: x86_64-unknown-linux-gnu

	# Test nightly but don't fail
	- rust: nightly
	experimental: true
	TARGET: x86_64-unknown-linux-gnu

	steps:
	- uses: actions/checkout@v2
	- uses: actions-rs/toolchain@v1
	with:
	profile: minimal
	toolchain: ${{ matrix.rust }}
	target: ${{ matrix.TARGET }}
	override: true
	- uses: actions-rs/cargo@v1
	with:
	command: build
	args: --target=${{ matrix.TARGET }}
	- uses: actions-rs/cargo@v1
	if: ${{ contains(matrix.TARGET, 'x86_64') }}
	with:
	command: test
	args: --target=${{ matrix.TARGET }}

Provide feedback