ci: various fixups

Basically, stop pinning OS versions because they rarely matter for basic
stuff and they just wind up being another thing that needs to be
updated.

.github/workflows/ci.yml

@@ -18,29 +18,29 @@ jobs:
  build: [pinned, stable, beta, nightly, macos, win-msvc, win-gnu]
  include:
  - build: pinned
- os: ubuntu-22.04
+ os: ubuntu-latest
  rust: 1.60.0
  - build: stable
- os: ubuntu-22.04
+ os: ubuntu-latest
  rust: stable
  - build: beta
- os: ubuntu-22.04
+ os: ubuntu-latest
  rust: beta
  - build: nightly
- os: ubuntu-22.04
+ os: ubuntu-latest
  rust: nightly
  - build: macos
- os: macos-12
+ os: macos-latest
  rust: stable
  - build: win-msvc
- os: windows-2022
+ os: windows-latest
  rust: stable
  - build: win-gnu
- os: windows-2022
+ os: windows-latest
  rust: stable-x86_64-gnu
  steps:
  - name: Checkout repository
- uses: actions/checkout@v3
+ uses: actions/checkout@v4
  - name: Install Rust
  uses: dtolnay/rust-toolchain@master
  with:
@@ -53,12 +53,12 @@ jobs:
  - if: matrix.build == 'nightly'
  run: cargo bench --verbose --no-run
 
- rustfmt:
+ check-doc-sync:
  name: check tutorial and cookbook examples
- runs-on: ubuntu-22.04
+ runs-on: ubuntu-latest
  steps:
  - name: Checkout repository
- uses: actions/checkout@v3
+ uses: actions/checkout@v4
  - name: Install Rust
  uses: dtolnay/rust-toolchain@master
  with:
@@ -69,26 +69,25 @@ jobs:
  - name: check that tutorial examples are up to date and in sync
  run: ci/check-copy tutorial
 
- check-doc-sync:
- name: rustfmt
- runs-on: ubuntu-22.04
+ rustfmt:
+ runs-on: ubuntu-latest
  steps:
  - name: Checkout repository
- uses: actions/checkout@v3
+ uses: actions/checkout@v4
  - name: Install Rust
  uses: dtolnay/rust-toolchain@master
  with:
  toolchain: stable
  components: rustfmt
  - name: Check formatting
- run: cargo fmt --check
+ run: cargo fmt --all --check
 
  miri:
  name: miri
- runs-on: ubuntu-22.04
+ runs-on: ubuntu-latest
  steps:
  - name: Checkout repository
- uses: actions/checkout@v3
+ uses: actions/checkout@v4
  - name: Install Rust
  uses: dtolnay/rust-toolchain@miri
  - run: cargo miri test --lib --verbose