Testool fix from Scroll #2314

	name: Feature flags

	on:
	merge_group:
	pull_request:
	types: [synchronize, opened, reopened, ready_for_review]
	push:
	branches:
	- main

	jobs:
	skip_check:
	runs-on: ubuntu-latest
	outputs:
	should_skip: ${{ steps.skip_check.outputs.should_skip }}
	steps:
	- id: skip_check
	uses: fkirc/skip-duplicate-actions@v5
	with:
	cancel_others: 'true'
	concurrent_skipping: 'same_content_newer'
	paths_ignore: '["**/README.md"]'

	test_features:
	needs: [skip_check]
	if: \|
	github.event.pull_request.draft == false &&
	(github.event.action == 'ready_for_review' \|\| needs.skip_check.outputs.should_skip != 'true')
	name: Validate features exist
	timeout-minutes: 30
	runs-on: ubuntu-latest
	strategy:
	fail-fast: false
	steps:
	- uses: actions/checkout@v2
	- uses: actions-rs/toolchain@v1
	with:
	override: false
	- name: Setup golang
	uses: actions/setup-go@v4
	with:
	go-version: ~1.21
	- name: Cargo cache
	uses: actions/cache@v3
	with:
	path: \|
	~/.cargo/bin/
	~/.cargo/registry/index/
	~/.cargo/registry/cache/
	~/.cargo/git/db/
	target/
	key: ${{ github.workflow }}-${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}

	- name: Import with features
	run: \|
	GIT_ROOT=$(pwd)
	cd /tmp
	for crate in zkevm-circuits; do
	for feature in default test-circuits test-util warn-unimplemented; do
	cargo new foobar
	cd foobar
	cp "${GIT_ROOT}/rust-toolchain" . \|\| true
	cargo add --path "${GIT_ROOT}/${crate}" --features "${feature}"
	cd ../
	rm -rf foobar
	done
	done

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