thread_local

40.8M downloads in the last 30 days (1.4M/day). Volume is roughly flat compared to the previous period.

3.2K crates depend on thread_local. Strong ecosystem adoption means battle-tested code and long-term stability.

thread_local has only 1 owner despite 3.2K dependents. This is a bus-factor concern — consider the implications for long-term support.

The API has been stable (1.x) for over 10 years with 29 releases. This level of maturity means you can depend on it without worrying about breaking changes.

Only 1 direct dependencies. Lean dependency tree means faster builds and lower supply chain risk.

At 16KB, thread_local is lightweight. Small crate size correlates with focused, well-scoped functionality.

Notable dependents include tracing-subscriber, slog-term, slog-async, console-subscriber, fuzzy-matcher. When high-quality crates choose thread_local, it's a strong quality signal.