Check whole workspace in ci (#432)

.github/workflows/test.yml

@@ -8,11 +8,11 @@ jobs:
     steps:
     - uses: actions/checkout@v3
     - run: rustup update 1.70 --no-self-update && rustup default 1.70
-    - run: cargo build
+    - run: cargo build --workspace
     - name: test mdBook
       # rustdoc doesn't build dependencies, so it needs to run after `cargo build`,
       # but its dependency search gets confused if there are multiple copies of any
       # dependency in target/debug/deps, so it needs to run before `cargo test` et al.
       # clutter target/debug/deps with multiple copies of things.
       run: for file in $(find mdbook -name '*.md' | sort); do rustdoc --test $file  -L ./target/debug/deps; done
-    - run: cargo test
+    - run: cargo test --workspace