Test null.

Author: xStrom

.github/workflows/ci.yml

@@ -77,7 +77,7 @@ jobs:
           components: rustfmt
 
       - name: cargo fmt
-        run: cargo fmt --all --check
+        run: cargo fmt ${{ fromJson(env.EXCLUDE_PKGS)['Foobar'] }} --all --check
 
       - name: install ripgrep
         run: |
@@ -119,7 +119,7 @@ jobs:
           save-if: ${{ github.event_name != 'merge_group' }}
 
       - name: cargo clippy
-        run: cargo hack clippy --workspace ${{ fromJson(env.EXCLUDE_PKGS)[runner.os] }} --locked --optional-deps --each-feature -- -D warnings
+        run: cargo hack clippy --workspace ${{ fromJson(env.EXCLUDE_PKGS)['Foobar'] }} --locked --optional-deps --each-feature -- -D warnings
 
       - name: cargo clippy (auxiliary)
         run: cargo hack clippy --workspace ${{ fromJson(env.EXCLUDE_PKGS)[runner.os] }} --locked --optional-deps --each-feature --tests --benches --examples -- -D warnings