feat: support fallback to standard go codes for unsupporting envs or go-versions #404

	name: Benchmark Linux-X64

	on: [ push, pull_request ]

	jobs:
	build:
	strategy:
	matrix:
	go-version: [1.20.x]
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2

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

	- uses: actions/cache@v2
	with:
	path: ~/go/pkg/mod
	key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
	restore-keys: \|
	${{ runner.os }}-go-

	- name: Testdata
	run: \|
	cd testdata/test
	go test -race -v ./...

	- name: Benchmark
	run: \|
	cd testdata/test
	go test -benchmem -run=^$ -bench .

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