pub fn init_tracing()Expand description
Initialize tracing with tracing-forest’s tree-formatted profiling output.
Installs a [ForestLayer], which prints a timing tree (span durations and their share of
the total) for each root span as it closes. This replaces the human-readable
PrintTreeLayer from tracing-profile.
Span verbosity defaults to DEBUG and can be overridden with RUST_LOG
(e.g. RUST_LOG=binius=trace), matching the previous behavior.
Calling this when a global subscriber is already installed is a no-op, so it is safe to invoke from every example entry point.