Have clippy workflow check all targets and features

Author: kurtjd

.github/workflows/check.yml

@@ -71,7 +71,9 @@ jobs:
         uses: giraffate/clippy-action@v1
         with:
           reporter: 'github-pr-review'
-          clippy_flags: -- -Dwarnings -F clippy::suspicious -F clippy::correctness -F clippy::perf -F clippy::style
+          filter_mode: 'nofilter'
+          fail_on_error: 'true'
+          clippy_flags: --all-features --all-targets -- -Dwarnings -F clippy::suspicious -F clippy::correctness -F clippy::perf -F clippy::style
           github_token: ${{ secrets.GITHUB_TOKEN }}
 
   # Enable once we have a released crate