Fix the build on FreeBSD #4087

	name: Rust Custom Mutators

	on:
	push:
	branches:
	- stable
	- dev
	pull_request:
	branches:
	- dev # No need for stable-pull-request, as that equals dev-push

	concurrency:
	group: ${{ github.workflow }}-${{ github.ref }}
	cancel-in-progress: true

	jobs:
	test:
	name: Test Rust Custom Mutator Support
	runs-on: '${{ matrix.os }}'
	defaults:
	run:
	working-directory: custom_mutators/rust
	strategy:
	matrix:
	os: [ubuntu-22.04]
	steps:
	- uses: actions/checkout@v3
	- name: Install Rust Toolchain
	uses: actions-rs/toolchain@v1
	with:
	toolchain: stable
	- name: Check Code Compiles
	run: cargo check
	- name: Run General Tests
	run: cargo test
	- name: Run Tests for afl_internals feature flag
	run: cd custom_mutator && cargo test --features=afl_internals

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