Function record_layer_with_failure 

pub fn record_layer_with_failure<Registry, Sink>(
    limits: FormatterLimits,
    sink: Sink,
    failure: impl Fn() + Send + Sync + 'static,
) -> (impl Layer<Registry> + Send + Sync, RecordStatus)
where
    Registry: Subscriber + for<'lookup> LookupSpan<'lookup>,
    Sink: Fn(&[u8]) -> Result<()> + Send + Sync + 'static,

Prepare a complete-record layer without installing it or selecting events.

Apply [Layer::with_filter] to each layer independently: the public logger can use its resolved [EnvFilter] while private evidence uses a fixed INFO selector. A global public filter would also suppress private evidence. Each layer owns its formatter limits, span fields and retained failure state. Each live span retains a full span_bytes allocation per layer; two layers with the default limits retain 128 KiB per span. Measurements before wiring must account for layer count and cache versions held by in-flight records. The completion, teardown and transport requirements of record_subscriber_with_failure apply equally to this constructor.