Add missing cause to error message #85

	name: Go

	on: [push, pull_request]

	jobs:

	build:
	name: Build
	runs-on: ubuntu-latest
	steps:

	- name: Set up Go 1.x
	uses: actions/setup-go@v2
	with:
	go-version: ^1.15
	id: go

	- name: Install libzmq
	run: sudo apt-get install libzmq3-dev

	- name: Check out code into the Go module directory
	uses: actions/checkout@v2

	- name: Get dependencies
	run: \|
	go get -v -t -d ./...

	- name: Build
	run: go build -v .

	- name: Make data directories
	run: mkdir stores/data

	- name: Test
	run: go test -race -coverprofile=coverage.txt -covermode=atomic ./...

	- uses: codecov/codecov-action@v1
	with:
	file: ./coverage.txt

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