Function pipe_wake_latency_mismatch 

pub fn pipe_wake_latency_mismatch(
    source: &str,
    recorded: Option<u64>,
    replay: Option<u64>,
) -> Option<String>

The refusal of a replay whose --pipe-wake-latency differs from the one a record stores, naming the record by source (an option and a path), or None when they agree. Absent and off are the same; Some(0) is not off.