fix not compiling without enabled features #234

	name: Tests
	on:
	pull_request:
	paths:
	- "*/.rs"
	- "Cargo.toml"
	- "tealr/Cargo.lock"
	- "tealr_derive/Cargo.toml"
	- ".github/workflows/ci.yml"
	jobs:
	formatting:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- uses: hecrj/setup-rust-action@v1
	with:
	rust-version: stable
	components: rustfmt
	- name: Formatting check
	run: cargo fmt --all -- --check

	test:
	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	os: [ubuntu-latest, macOS-latest]
	tests:
	- "cargo test --features mlua,mlua_vendored,mlua_lua53,mlua_async,mlua_send"
	- "cargo test --features mlua,mlua_vendored,mlua_lua54,mlua_async,mlua_send"
	- "cargo test --features mlua,mlua_vendored,mlua_lua53,mlua_async --no-run"
	- "cargo test --features mlua,mlua_vendored,mlua_lua54,mlua_async --no-run"
	- "cargo build"
	steps:
	- uses: actions/checkout@master
	- uses: hecrj/[email protected]
	with:
	rust-version: stable
	- uses: leafo/[email protected]
	with:
	luaVersion: "5.4"
	- uses: leafo/[email protected]
	- name: Install dependencies
	run: luarocks install tl
	- name: run tests
	run: ${{matrix.tests}}
	clippy:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	tests:
	- "cargo clippy --features mlua,mlua_vendored,mlua_lua54,mlua_async,mlua_send -- -D warnings"
	- "cargo clippy --features mlua,mlua_vendored,mlua_lua53,mlua_async,mlua_send -- -D warnings"
	- "cargo clippy --features mlua,mlua_vendored,mlua_luau,mlua_async,mlua_send -- -D warnings"
	steps:
	- uses: hecrj/[email protected]
	with:
	rust-version: stable
	components: clippy
	- uses: actions/checkout@master
	- name: Clippy
	run: ${{matrix.tests}}

Provide feedback