conserve 24.8.0

A robust backup tool.
Documentation 
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name: Mutants

on:
  workflow_dispatch: # i.e. manually

# see https://matklad.github.io/2021/09/04/fast-rust-builds.html
env:
  CARGO_TERM_COLOR: always
  CARGO_INCREMENTAL: 0
  CARGO_NET_RETRY: 10
  CI: 1
  RUST_BACKTRACE: short
  RUSTUP_MAX_RETRIES: 10

jobs:
  tests:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: dtolnay/rust-toolchain@master
        with:
          toolchain: stable
      - uses: swatinem/rust-cache@v2
      - name: Show version
        run: |
          rustup show
          cargo --version
          rustc --version
      - name: Test
        run: >
          cargo test --features fail/failpoints -- --include-ignored

  cargo-mutants:
    runs-on: ubuntu-latest
    needs: [tests]
    strategy:
      # We want to see all the missed mutants so don't fail fast.
      fail-fast: false
      matrix:
        shard: [0, 1, 2, 3]
    steps:
      - name: Checkout
        uses: actions/checkout@v4
      - uses: taiki-e/install-action@v2
        name: Install cargo-mutants using install-action
        with:
          tool: cargo-mutants
      - uses: dtolnay/rust-toolchain@master
        with:
          toolchain: stable
      - uses: swatinem/rust-cache@v2
      - name: Run mutant tests
        # Don't use the S3 features because they require AWS credentials for realistic
        # testing.
        run: >
          cargo mutants --no-shuffle -vV --cargo-arg --no-default-features
          --shard ${{ matrix.shard }}/4 -- --features fail/failpoints
      - name: Archive results
        uses: actions/upload-artifact@v3
        if: always()
        with:
          name: mutation-report
          path: mutants.out