- Change runs-on back to ubuntu-latest (maps to docker://ubuntu:24.04)
- Remove container: directive (label already specifies image)
- Remove sudo (running as root in Ubuntu container)
- Always install Rust (no caching between runs yet)
- Change runs-on from ubuntu-latest to linux (maps to linux:host)
- Remove container: directive that caused SIGKILL on sibling containers
- Run directly on LXC host which is already Ubuntu
- Add sudo for apt-get commands on host
- Check for existing cargo before installing Rust
- Replace actions/checkout with git clone using GITHUB_SERVER_URL
- Remove actions/cache (no cross-run caching for now)
- Consolidate into single job (no artifact passing needed)
- Remove actions/upload-artifact and actions/download-artifact
- Pure shell steps only - no cloning from github.com needed
