Make sure -fsanitizer binaries are always cleaned up

test/test_functest.py

@@ -60,6 +60,7 @@ def check_functest_sanitizers(implementation):
                  EXTRAFLAGS='-fsanitize=address,undefined',
                  working_dir=os.path.join('..', 'test'),
                  env=env)
+    try:
         helpers.run_subprocess(
             [os.path.join('..', 'bin', 'functest_{}_{}{}'.format(
                 implementation.scheme.name,
@@ -69,6 +70,9 @@ def check_functest_sanitizers(implementation):
             os.path.join('..', 'bin'),
             env=env,
         )
+    except AssertionError as e:
+        raise e
+    finally:
         # Remove files with ASAN library compiled in
         helpers.make('clean-scheme',
                      TYPE=implementation.scheme.type,