tracing-subscriber 0.2.3

Utilities for implementing and composing `tracing` subscribers.
Documentation 
#[cfg(test)]
pub use self::support::*;
// This has to have the same name as the module in `tracing`.
#[path = "../../tracing/tests/support/mod.rs"]
#[cfg(test)]
// path attribute requires referenced module to have same name so allow module inception here
#[allow(clippy::module_inception)]
mod support;