Add clippy run with all features enabled

This should be a low-cost way to identify easily-fixed issues in code that will be missed by standard CI run against only default features

Author: baumanj

.github/workflows/build.yml

@@ -44,10 +44,14 @@ jobs:
       shell: bash
       run: rustup run ${{ matrix.rust }} cargo fmt --all -- --check
 
-    - name: Clippy
+    - name: Clippy (default features)
       shell: bash
       run: rustup run ${{ matrix.rust }} cargo clippy --all --bins --all-targets --examples --benches --tests -- -D warnings 
 
+    - name: Clippy (all features)
+      shell: bash
+      run: rustup run ${{ matrix.rust }} cargo clippy --all --all-features --bins --all-targets --examples --benches --tests -- -D warnings 
+
     - name: Test (release)
       shell: bash
       run: rustup run ${{ matrix.rust }} cargo test --all --verbose --release