Update execute.py

execute.py

@@ -71,7 +71,7 @@ def unsafe_execute(check_program, output, result, timeout):
         chdir = os.chdir
 
         # Disable functionalities that can make destructive changes to the test.
-        reliability_guard()
+        # reliability_guard()
 
         # Run program.
         try:
@@ -224,7 +224,7 @@ def reliability_guard(maximum_memory_bytes=None):
     os.lchmod = None
     os.lchown = None
     os.getcwd = None
-    #os.chdir = None
+    os.chdir = None
 
     import shutil
 
@@ -232,9 +232,9 @@ def reliability_guard(maximum_memory_bytes=None):
     shutil.move = None
     shutil.chown = None
 
-    #import subprocess
+    import subprocess
 
-    #subprocess.Popen = None  # type: ignore
+    subprocess.Popen = None  # type: ignore
 
     __builtins__["help"] = None