The declarations below are transcribed from the public source and extension stubs at f5bcaa8. Ellipses mark defaults unspecified by the stub. Self denotes the same fluent builder type; _Any is the stub’s alias for typing.Any.
setup_rust_logging
Optional log-compat bridge. Install the process-global log logger once; targets route to femtologging names.
setup_rust_tracing
Optional tracing-compat bridge. Event/span mapping is separate from an OpenTelemetry exporter. Global subscriber registration is constrained.