Optimize some code in async server.rs #551

	name: BVT
	on: [pull_request]
	jobs:
	check:
	name: Check
	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	os: [ubuntu-latest, macos-latest, windows-latest]
	steps:
	- name: Checkout
	uses: actions/checkout@v3
	- name: Check
	run: \|
	make check-all

	make:
	name: Build
	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	os: [ubuntu-latest, macos-latest, windows-latest]
	steps:
	- name: Checkout
	uses: actions/checkout@v3
	- name: Build
	run: \|
	make
	make -C compiler
	make -C ttrpc-codegen
	make -C example build-examples
	# It's important for windows to fail correctly
	# https://github.com/actions/runner-images/issues/6668
	shell: bash

	deny:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	checks:
	- advisories
	- bans sources

	# Prevent sudden announcement of a new advisory from failing ci:
	continue-on-error: ${{ matrix.checks == 'advisories' }}

	steps:
	- uses: actions/checkout@v3
	- uses: EmbarkStudios/cargo-deny-action@v1
	with:
	command: check ${{ matrix.checks }}

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