CI: add miri tests, msrv tests and add -Dwarnings.

.github/workflows/ci.yml

@@ -1,10 +1,13 @@
 on: [push]
 
-name: Build, Lint and Test
+name: and Test
+
+env:
+  RUSTFLAGS: "-Dwarnings"
 
 jobs:
   check:
-    name: Checking
+    name: Test
     strategy:
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
@@ -16,16 +19,30 @@ jobs:
         uses: dtolnay/rust-toolchain@v1
         with:
           toolchain: 1.63
-          components: rustfmt, clippy
-      - name: cargo fmt
-        run: cargo fmt --all -- --check
-      - name: cargo clippy
-        run: cargo clippy --workspace --all-targets
       - name: cargo test
         run: cargo test --workspace
+      - name: install cargo-msrv
+        run: cargo binstall --no-confirm cargo-msrv
+      - name: cargo msrv
+        run: cargo msrv --version
+      - name: cargo msrv verify
+        run: cargo msrv verify
+  miri:
+    name: MIRI Test
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout Repository
+        uses: actions/checkout@v4
+      - name: Install Rust Toolchain
+        uses: dtolnay/rust-toolchain@v1
+        with:
+          toolchain: nightly
+          components: miri
+      - name: cargo miri
+        run: cargo miri test --workspace
 
   coverage:
-    name: Test Coverage
+    name: Lint and Test Coverage
     strategy:
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
@@ -40,7 +57,13 @@ jobs:
         uses: dtolnay/rust-toolchain@v1
         with:
           toolchain: stable
-          components: llvm-tools-preview
+          components: llvm-tools-preview, rustfmt, clippy
+      - name: cargo fmt
+        run: cargo fmt --all -- --check
+      - name: cargo clippy
+        run: cargo clippy --workspace --all-targets
+      - name: cargo doc
+        run: cargo doc --workspace
       - name: Install cargo-llvm-cov
         uses: taiki-e/install-action@cargo-llvm-cov
       - name: Generate Code Coverage