Collects and records trace data.
stdA guard that resets the current default dispatcher to the prior default dispatcher when dropped.
- Indicates a
Collect’s interest in a particular callsite.
- A no-op collector.
- Returned if setting the global dispatcher fails.
- Trait representing the functions required to collect trace data.
stdSets the collector as the default for the current thread for the duration of the lifetime of the returned
allocSets this collector as the global default for the duration of the entire program. Will be used as a fallback if no thread-local collector has been set in a thread (using
stdSets this collector as the default for the current thread for the duration of a closure.