Rust CLI Observability: Logs, Progress, Stderr, and Machine-Readable Output

A practical two-hour session on Rust CLI Observability, focused on Logs, Progress, Stderr, and Machine-Readable Output. Rust is used as the implementation context while the core lesson stays on software engineering fundamentals, reliability, testing, and operational clarity.

Audience: entry-level and intermediate developers who want a practical engineering session, not a language tour.

Outcomes:

• Explain the practical boundaries of Rust CLI Observability
• Apply Logs in a small working example
• Apply Progress in a small working example
• Apply Stderr in a small working example

Format: two hours with a short framing walkthrough, a concrete example, discussion of tradeoffs, and a closing checklist for practice.