Debug CI failure

tests/test_real_projects.py

@@ -10,6 +10,7 @@
 
 import json
 import logging
+import os
 import subprocess
 import sys
 import tarfile
@@ -48,6 +49,11 @@ def verify_requirements(venv_path: Path, requirements: List[str]) -> None:
         for req in requirements
         if "python_version" not in req  # we don't know how to parse these (yet)
     }
+    print(f"Walking virtualenv at {venv_path}:")
+    for dirpath, dirnames, filenames in os.walk(venv_path):
+        print(f"  {dirpath}:")
+        print(f"    DIRS: {dirnames!r}")
+        print(f"    FILES: {filenames!r}")
     resolved = LocalPackageResolver(pyenv_sources(venv_path)).lookup_packages(deps)
     assert all(dep in resolved for dep in deps)