Method begin

crates/ffi/src/kernel.rs:2568–2576

(&self, worker_idx: usize, prefix: &str)

            // constant's record would never be flushed by a trailing reset —
            // flush it explicitly.
            tc.finish_constant_accounting();
            r
          };
          if res.is_ok() {
            passed.fetch_add(1, Ordering::Relaxed);
          } else {
            failed.fetch_add(1, Ordering::Relaxed);
          }
          checks_since_clear += 1;
        }
        if let Some(sink) = kenv.profile_sink.take() {
          sinks.lock().unwrap().push(sink);