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