Description

The check_env.py script ensures the development environment is correctly set up by verifying the versions of pixi, cargo, and rustc. It checks if the required versions are installed and provides update or installation instructions if they are incorrect or missing.

Steps to Reproduce

1. Run the script:

   python3 check_env.py
   

2. Observe the output for any errors or mismatches.

Expected Behavior

• The script should verify versions and guide the user to update/install dependencies if necessary.
• If everything is correct, it should exit with status 0.
• If any issue is found, it should exit with status 1.

Possible Fix

• Ensure pixi, cargo, and rustc are properly installed and available in PATH.
• Modify version retrieval logic if needed to account for different OS outputs.