tracing-unlikely

A wrapper around tracing that minimizes overhead when tracing is disabled.

This crate exports API-compatible tracing macros that avoid inlining debug machinery into the hot path when any relevant tracing levels are disabled. This is useful for crates where tracing is used heavily for debugging but rarely enabled in practice.

Note that the rest of the tracing public API is also re-exported, and all crate-level features are mirrored, so this crate serves as a drop-in replacement for the entire tracing crate.