Subscriber for formatting and logging
tracing is a framework for instrumenting Rust programs with context-aware,
structured, event-based diagnostic information. This crate provides an
implementation of the
Subscriber trait that records
Spans by formatting them as text and logging them to stdout.
Filter implementations for determining what spans and events to record.
Formatters for logging
Formatters for event timestamps.
Configures and constructs
A policy for determining what spans and events should be enabled.
A type that can format a tracing