refactor(backend): Remove "preprocess" queue (#1539) #5329

	# Based on https://github.com/actions-rs/meta/blob/master/recipes/quickstart.md

	name: pr

	on:
	pull_request:
	push:
	branches:
	- master

	# For backend, run builds and tests without sqlx's compile time query checks
	# https://github.com/launchbadge/sqlx/blob/master/sqlx-cli/README.md#force-building-in-offline-mode
	env:
	SQLX_OFFLINE: true

	jobs:
	# Cargo check.
	check:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout sources
	uses: actions/checkout@v2

	- name: Install stable toolchain
	uses: actions-rs/toolchain@v1
	with:
	profile: minimal
	toolchain: stable
	override: true

	- name: Run cargo check
	uses: actions-rs/cargo@v1
	with:
	command: check
	args: --all

	# Cargo test.
	test:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout sources
	uses: actions/checkout@v2

	- name: Install stable toolchain
	uses: actions-rs/toolchain@v1
	with:
	profile: minimal
	toolchain: stable
	override: true

	- name: Run cargo test
	uses: actions-rs/cargo@v1
	with:
	command: test
	args: --all

	# Cargo fmt and clippy
	lints:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout sources
	uses: actions/checkout@v2

	- name: Install stable toolchain
	uses: actions-rs/toolchain@v1
	with:
	profile: minimal
	toolchain: stable
	override: true
	components: rustfmt, clippy

	- name: Run cargo fmt
	uses: actions-rs/cargo@v1
	with:
	command: fmt
	args: --all -- --check

	- name: Run cargo clippy
	uses: actions-rs/cargo@v1
	with:
	command: clippy
	args: --all -- -A deprecated

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