helper 4.0.0

A library provided some useful proc macros for Rust.
Documentation
name: Rust

on:
  push:
    branches: [ master, develop ]
  pull_request:
    branches: [ "**" ]

env:
  CARGO_TERM_COLOR: always
  RUST_BACKTRACE: 1
  RUSTFLAGS: "-D warnings"

jobs:
  build:

    runs-on: ubuntu-latest

    steps:
    - name: Checkout
      uses: actions/checkout@v2
    - name: Install rust nightly
      run: rustup toolchain install nightly -c rustfmt
    - name: Check
      run: cargo check --release --verbose
    - name: Format
      run: cargo +nightly fmt --all -- --check
    - name: Clippy
      run: cargo clippy --release --verbose
    - name: Run tests
      run: cargo test --release --verbose
    - name: Doc
      run: cargo +nightly rustdoc --release --all-features