Try environment again.

Author: jaraco

Lib/test/test_importlib/metadata/_issue132947.py

@@ -8,8 +8,10 @@ def skip_on_buildbot(func):
     changes, only on some buildbot runners, the tests will fail with
     ResourceWarnings.
     """
-    is_buildbot = 'buildbot' in os.getcwd()
-    assert is_buildbot, f'no buildbot in {os.getcwd()}'
+    is_buildbot = "buildbot" in os.getcwd() or any(
+        "buildbot" in key.lower() for key in os.environ
+    )
+    assert is_buildbot, f"no buildbot in {os.getcwd()} or {tuple(os.environ)}"
     skipper = unittest.skip("Causes Resource Warnings (python/cpython#132947)")
     wrapper = skipper if is_buildbot else lambda x: x
     return wrapper(func)