diff --git a/.github/workflows/python-nightly.yml b/.github/workflows/python-nightly.yml
index fb4341e27..d18d46a18 100644
--- a/.github/workflows/python-nightly.yml
+++ b/.github/workflows/python-nightly.yml
@@ -104,6 +104,7 @@ jobs:
           set -xe
           python -VV
           python -m site
+          python -m sysconfig
           python -c "import sys; print('GIL:', getattr(sys, '_is_gil_enabled', lambda: True)())"
           python -m coverage debug sys
           python -m coverage debug pybehave
@@ -115,4 +116,4 @@ jobs:
 
       - name: "Run tox"
         run: |
-          python -m tox -- -rfsEX
+          python -m tox -- -rfsEX -k short_stack
diff --git a/tests/test_debug.py b/tests/test_debug.py
index c818f9308..af42069e2 100644
--- a/tests/test_debug.py
+++ b/tests/test_debug.py
@@ -377,6 +377,7 @@ def test_short_stack_full(self) -> None:
             py = "pypy" if env.PYPY else "python"
             majv, minv = sys.version_info[:2]
             pylib = f"lib{s}{py}{majv}.{minv}"
+        print(f"{stack_text = }")
         assert len(re_lines(fr"{s}{pylib}{s}site-packages{s}_pytest", stack_text)) > 3
         assert len(re_lines(fr"{s}{pylib}{s}site-packages{s}pluggy", stack_text)) > 3
         assert not re_lines(r" 0x[0-9a-fA-F]+", stack_text) # No frame ids
@@ -386,6 +387,7 @@ def test_short_stack_full(self) -> None:
         assert "f_one" in stack[-3]
         assert "f_two" in stack[-2]
         assert "f_three" in stack[-1]
+        1/0
 
     def test_short_stack_short_filenames(self) -> None:
         stack_text = f_one(full=True, short_filenames=True)