Adds descriptive error when failing to make concrete (#51) #78

	name: CI

	on:
	push:
	branches: [ master ]
	pull_request:
	branches: [ master ]

	jobs:
	test:
	strategy:
	fail-fast: false
	matrix:
	os:
	- ubuntu-latest
	go:
	- 1.17

	runs-on: ${{ matrix.os }}

	steps:
	- uses: actions/checkout@v2

	- name: Set up Go
	uses: actions/setup-go@v2
	with:
	go-version: ${{ matrix.go }}

	- name: Coveralls
	env:
	COVERALLS_TOKEN: ${{ secrets.GITHUB_TOKEN }}
	run: \|
	go install github.com/mattn/goveralls@latest
	goveralls -service=github

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