🛈 Note: This is pre-release documentation for the upcoming tracing 0.2.0 ecosystem.

For the release documentation, please see docs.rs, instead.

Function init

Source
pub fn init()
Available on crate features fmt and std only.
Expand description

Install a global tracing collector that listens for events and filters based on the value of the RUST_LOG environment variable.

If the tracing-log feature is enabled, this will also install the LogTracer to convert Log records into tracing Events.

This is shorthand for

tracing_subscriber::fmt().init()

§Panics

Panics if the initialization was unsuccessful, likely because a global collector was already installed by another call to try_init.