GitHub Actions: Improve clazy workflow

.github/workflows/clazy.yml

@@ -8,18 +8,23 @@ jobs:
   clazy:
     runs-on: ubuntu-20.04
     steps:
-    - uses: actions/checkout@v2
+    - name: Check out repository
+      uses: actions/checkout@v2
     - name: Install build dependencies
       run: sudo apt-get update && sudo apt-get install -y --no-install-recommends libavformat-dev libchromaprint-dev libebur128-dev libfftw3-dev libflac-dev libid3tag0-dev liblilv-dev libmad0-dev libmodplug-dev libmp3lame-dev libopus-dev libopusfile-dev libportmidi-dev libprotobuf-dev libqt5opengl5-dev libqt5sql5-sqlite libqt5svg5-dev libqt5x11extras5-dev librubberband-dev libshout3-dev libsndfile1-dev libsoundtouch-dev libsqlite3-dev libtag1-dev libupower-glib-dev libusb-1.0-0-dev libwavpack-dev portaudio19-dev protobuf-compiler qt5-default qtscript5-dev qt5keychain-dev clazy cmake
-    - name: Build
+    - name: Configure
       run: |
         mkdir cmake_build
         cd cmake_build
         # Disable optimizations as workaround for Clang 9 bug: https://bugs.llvm.org/show_bug.cgi?id=45034
         cmake -DCMAKE_BUILD_TYPE=Debug -DWARNINGS_FATAL=ON -DOPTIMIZE=off -DBATTERY=ON -DBROADCAST=ON -DBULK=ON -DHID=ON -DLILV=ON -DOPUS=ON -DQTKEYCHAIN=ON -DVINYLCONTROL=ON -DFFMPEG=ON -DKEYFINDER=ON -DLOCALECOMPARE=ON -DMAD=ON -DMODPLUG=ON -DWAVPACK=ON ..
-        cmake --build . -j $(nproc)
       env:
         LD: clang++
         CC: clang
         CXX: clazy
+    - name: Set up problem matcher
+      uses: ammaraskar/gcc-problem-matcher@master
+    - name: Build
+      run: cmake --build . -j $(nproc)
+      env:
         CLAZY_CHECKS: level1,no-rule-of-two-soft,no-non-pod-global-static,no-qproperty-without-notify,no-wrong-qevent-cast