diff --git a/Modules/Core/QuadEdgeMesh/test/itkVTKPolyDataReaderQuadEdgeMeshTest.cxx b/Modules/Core/QuadEdgeMesh/test/itkVTKPolyDataReaderQuadEdgeMeshTest.cxx
index 26bbd8dc885..1d96bd932e9 100644
--- a/Modules/Core/QuadEdgeMesh/test/itkVTKPolyDataReaderQuadEdgeMeshTest.cxx
+++ b/Modules/Core/QuadEdgeMesh/test/itkVTKPolyDataReaderQuadEdgeMeshTest.cxx
@@ -36,8 +36,6 @@ itkVTKPolyDataReaderQuadEdgeMeshTest(int argc, char * argv[])
 
   auto polyDataReader = ReaderType::New();
 
-  using PointType = ReaderType::PointType;
-
   polyDataReader->SetFileName(argv[1]);
 
   try
@@ -58,9 +56,6 @@ itkVTKPolyDataReaderQuadEdgeMeshTest(int argc, char * argv[])
   std::cout << "Using following MeshType :";
   std::cout << mesh->GetNameOfClass() << std::endl;
 
-  const PointType point{};
-
-
   std::cout << "Testing itk::VTKPolyDataReader" << std::endl;
 
   const unsigned int numberOfPoints = mesh->GetNumberOfPoints();
diff --git a/Modules/IO/NRRD/test/itkNrrdVectorImageUnitLabelReadTest.cxx b/Modules/IO/NRRD/test/itkNrrdVectorImageUnitLabelReadTest.cxx
index ff155b67d53..82b33a46ca1 100644
--- a/Modules/IO/NRRD/test/itkNrrdVectorImageUnitLabelReadTest.cxx
+++ b/Modules/IO/NRRD/test/itkNrrdVectorImageUnitLabelReadTest.cxx
@@ -30,7 +30,7 @@ template <typename T>
 void
 checkField(itk::MetaDataDictionary & metadata, const std::string & key, const T & expectedValue)
 {
-  T value;
+  T value{};
   if (!itk::ExposeMetaData<T>(metadata, key, value))
   {
     std::cerr << "Metadata test failed: '" << key << "' is not found" << std::endl;
diff --git a/Testing/ContinuousIntegration/AzurePipelinesLinux.yml b/Testing/ContinuousIntegration/AzurePipelinesLinux.yml
index 55b41de7a8f..23038d46695 100644
--- a/Testing/ContinuousIntegration/AzurePipelinesLinux.yml
+++ b/Testing/ContinuousIntegration/AzurePipelinesLinux.yml
@@ -34,7 +34,7 @@ variables:
   CCACHE_NOHASHDIR: 'true'
   CCACHE_SLOPPINESS: pch_defines,time_macros
 jobs:
-- job: LinuxLegacyRemovedCxx20
+- job: LinuxLegacyRemovedDebugCxx20
   timeoutInMinutes: 0
   cancelTimeoutInMinutes: 300
   pool:
@@ -80,9 +80,9 @@ jobs:
 
     - task: Cache@2
       inputs:
-        key: '"ccache-v4" | "$(Agent.OS)" | "LinuxLegacyRemovedCxx20" | "$(Build.SourceVersion)"'
+        key: '"ccache-v5" | "$(Agent.OS)" | "LinuxLegacyRemovedDebugCxx20" | "$(Build.SourceVersion)"'
         restoreKeys: |
-          "ccache-v4" | "$(Agent.OS)" | "LinuxLegacyRemovedCxx20"
+          "ccache-v5" | "$(Agent.OS)" | "LinuxLegacyRemovedDebugCxx20"
         path: $(CCACHE_DIR)
       displayName: 'Restore ccache'
 
@@ -95,21 +95,23 @@ jobs:
 
     - bash: |
         cat > dashboard.cmake << EOF
-        set(CTEST_BUILD_CONFIGURATION "MinSizeRel")
+        set(CTEST_BUILD_CONFIGURATION "Debug")
         set(CTEST_CMAKE_GENERATOR "Ninja")
-        set(BUILD_NAME_SUFFIX "LegacyRemovedCxx20")
+        set(BUILD_NAME_SUFFIX "LegacyRemovedDebugCxx20")
         set(dashboard_cache "
           ITK_LEGACY_REMOVE:BOOL=ON
           CMAKE_CXX_STANDARD:STRING=20
           CMAKE_CXX_STANDARD_REQUIRED:BOOL=ON
-          BUILD_SHARED_LIBS:BOOL=OFF
+          BUILD_SHARED_LIBS:BOOL=ON
           BUILD_EXAMPLES:BOOL=ON
           ITK_WRAP_PYTHON:BOOL=OFF
+          CMAKE_CXX_FLAGS_DEBUG:STRING=-O1
+          CMAKE_C_FLAGS_DEBUG:STRING=-O1
           CMAKE_C_COMPILER_LAUNCHER:STRING=ccache
           CMAKE_CXX_COMPILER_LAUNCHER:STRING=ccache
           ITK_COMPUTER_MEMORY_SIZE:STRING=4.5
         ")
-        set(CTEST_TEST_ARGS EXCLUDE_LABEL BigIO) # Disabled to conserve disk space
+        set(CTEST_TEST_ARGS EXCLUDE_LABEL "BigIO|RUNS_LONG") # BigIO = disk; RUNS_LONG = Debug wall time
         include(\$ENV{AGENT_BUILDDIRECTORY}/ITK-dashboard/azure_dashboard.cmake)
         EOF
         cat dashboard.cmake
@@ -122,11 +124,19 @@ jobs:
         c++ --version
         cmake --version
 
+        # ccache refreshes timestamps on hit; evict-older-than prunes untouched entries (1d on pass keeps it lean, 4d on fail retains fix-retry objects).
         ctest -S $(Agent.BuildDirectory)/ITK-dashboard/dashboard.cmake -V -j 2
+        ctest_rc=$?
+        if [ $ctest_rc -eq 0 ]; then
+          ccache --evict-older-than 1d
+        else
+          ccache --evict-older-than 4d
+        fi
+        exit $ctest_rc
       displayName: 'Build and test'
       env:
         CTEST_OUTPUT_ON_FAILURE: 1
-        CCACHE_MAXSIZE: 2.4G
+        CCACHE_MAXSIZE: 4.5G
 
     - bash: ccache --show-stats
       condition: always()
@@ -144,6 +154,15 @@ jobs:
     - task: PublishTestResults@2
       inputs:
         testResultsFiles: "$(Agent.BuildDirectory)/JUnitTestResults.xml"
-        testRunTitle: 'CTest $(Agent.OS) LegacyRemovedCxx20'
+        testRunTitle: 'CTest $(Agent.OS) LegacyRemovedDebugCxx20'
       condition: succeededOrFailed()
       displayName: 'Publish test results'
+
+    # The Debug+Examples build tree fills the agent's free space; remove it so
+    # the post-job ccache/ExternalData Cache@2 save has room to write its tar.
+    - bash: |
+        set -x
+        rm -rf $(Build.SourcesDirectory)-build
+        df -h /
+      condition: always()
+      displayName: 'Free build tree before post-job cache save'