Do not run xfail tests that time out in stage 3

We should create a flag to not run stage 3 and then use it in these
tests (and others, no doubt)

Author: Owen Jones

regression/OWASP/BenchmarkTest00430/test_BenchmarkTest00430.py

@@ -5,7 +5,7 @@
 import regression.utils as utils
 
 
-@pytest.mark.xfail(strict=True)
+@pytest.mark.xfail(strict=True, reason="times out", run=False)
 @fasteners.interprocess_locked(os.path.join(os.path.dirname(__file__), ".build_lock"))
 def test_BenchmarkTest00430(load_strategy):
     """

regression/OWASP/BenchmarkTest00431/test_BenchmarkTest00431.py

@@ -5,7 +5,7 @@
 import regression.utils as utils
 
 
-@pytest.mark.xfail(strict=True)
+@pytest.mark.xfail(strict=True, run=False, reason="Times out on Travis")
 @fasteners.interprocess_locked(os.path.join(os.path.dirname(__file__), ".build_lock"))
 def test_BenchmarkTest00431(load_strategy):
     """