[Test] Try to fix the problem on storing ccache results

.github/workflows/build.yml

@@ -18,7 +18,7 @@ env:
 
 # Multiple job to tests
 jobs:
-  # Test the compilation
+  # Test the compilation compatibility
   build:
     name: ${{ matrix.config.name }}
     runs-on: ${{ matrix.config.os }}
@@ -58,19 +58,20 @@ jobs:
           string(TIMESTAMP current_date "%Y-%m-%d-%H;%M;%S" UTC)
           message("::set-output name=timestamp::${current_date}")
 
+      - name: Create CMake build environment
+        # Some projects don't allow in-source building, so create a separate build directory
+        # We'll use this as our working directory for all subsequent commands
+        run: cmake -E make_directory ${{runner.workspace}}/build
+      
       - name: ccache cache files
         uses: actions/cache@v1.1.0
+        working-directory: ${{runner.workspace}}/build
         with:
           path: .ccache
           key: ${{ matrix.config.name }}-ccache-${{ steps.ccache_cache_timestamp.outputs.timestamp }}
           restore-keys: |
             ${{ matrix.config.name }}-ccache-
 
-      - name: Create CMake build environment
-        # Some projects don't allow in-source building, so create a separate build directory
-        # We'll use this as our working directory for all subsequent commands
-        run: cmake -E make_directory ${{runner.workspace}}/build
-
       - name: Configure CMake
         # Use a bash shell so we can use the same syntax for environment variable
         # access regardless of the host operating system