Add scheduled test to Actions for all features

Add a new job to the Rust workflow to run 'cargo build' and 'cargo
test' (on the cron schedule only) with the '--all-features' flag.
This will execute across all three environments: Linux, macOS,
Windows.

Autoformat the Rust workflow file via the Red Hat YAML extension for
Visual Studio Code:
https://marketplace.visualstudio.com/items?itemName=redhat.vscode-yaml
This straightens out whitespace and string quoting for safer parsing.

Fixes #3506.

.github/workflows/rust.yml

@@ -4,7 +4,7 @@ on:
   workflow_dispatch:
   schedule:
     # Everyday at 5:00am
-    - cron: '0 5 * * *'
+    - cron: "0 5 * * *"
   pull_request:
   push:
     # trying and staging branches are for Bors config
@@ -25,36 +25,36 @@ jobs:
       # Use ubuntu-18.04 to compile with glibc 2.27, which are the production expectations
       image: ubuntu:18.04
     steps:
-    - uses: actions/checkout@v3
-    - name: Install needed dependencies
-      run: |
-        apt-get update && apt-get install -y curl
-        apt-get install build-essential -y
-    - name: Run test with Rust stable
-      if: github.event_name != 'schedule'
-      uses: actions-rs/toolchain@v1
-      with:
-        toolchain: stable
-        override: true
-    - name: Run test with Rust nightly
-      if: github.event_name == 'schedule'
-      uses: actions-rs/toolchain@v1
-      with:
-        toolchain: nightly
-        override: true
-    # Disable cache due to disk space issues with Windows workers in CI
-    # - name: Cache dependencies
-    #   uses: Swatinem/rust-cache@v2.2.0
-    - name: Run cargo check without any default features
-      uses: actions-rs/cargo@v1
-      with:
-        command: build
-        args: --locked --release --no-default-features --all
-    - name: Run cargo test
-      uses: actions-rs/cargo@v1
-      with:
-        command: test
-        args: --locked --release --all
+      - uses: actions/checkout@v3
+      - name: Install needed dependencies
+        run: |
+          apt-get update && apt-get install -y curl
+          apt-get install build-essential -y
+      - name: Run test with Rust stable
+        if: github.event_name != 'schedule'
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: stable
+          override: true
+      - name: Run test with Rust nightly
+        if: github.event_name == 'schedule'
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: nightly
+          override: true
+      # Disable cache due to disk space issues with Windows workers in CI
+      # - name: Cache dependencies
+      #   uses: Swatinem/rust-cache@v2.2.0
+      - name: Run cargo check without any default features
+        uses: actions-rs/cargo@v1
+        with:
+          command: build
+          args: --locked --release --no-default-features --all
+      - name: Run cargo test
+        uses: actions-rs/cargo@v1
+        with:
+          command: test
+          args: --locked --release --all
 
   test-others:
     name: Tests on ${{ matrix.os }}
@@ -64,19 +64,46 @@ jobs:
       matrix:
         os: [macos-12, windows-2022]
     steps:
-    - uses: actions/checkout@v3
-#     - name: Cache dependencies
-#       uses: Swatinem/rust-cache@v2.2.0
-    - name: Run cargo check without any default features
-      uses: actions-rs/cargo@v1
-      with:
-        command: build
-        args: --locked --release --no-default-features --all
-    - name: Run cargo test
-      uses: actions-rs/cargo@v1
-      with:
-        command: test
-        args: --locked --release --all
+      - uses: actions/checkout@v3
+      #     - name: Cache dependencies
+      #       uses: Swatinem/rust-cache@v2.2.0
+      - name: Run cargo check without any default features
+        uses: actions-rs/cargo@v1
+        with:
+          command: build
+          args: --locked --release --no-default-features --all
+      - name: Run cargo test
+        uses: actions-rs/cargo@v1
+        with:
+          command: test
+          args: --locked --release --all
+
+  test-all-features:
+    name: Tests all features on ${{ matrix.os }} on cron schedule only
+
+    runs-on: ${{ matrix.os }}
+
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-18.04, macos-12, windows-2022]
+
+    if: github.event_name == 'schedule'
+
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Run cargo build with all features
+        uses: actions-rs/cargo@v1
+        with:
+          command: build
+          args: --workspace --locked --release --all-features
+
+      - name: Run cargo test with all features
+        uses: actions-rs/cargo@v1
+        with:
+          command: test
+          args: --workspace --locked --release --all-features
 
   # We run tests in debug also, to make sure that the debug_assertions are hit
   test-debug: