Error: task 17 panicked

[dat58]

I have used version 0.2.0, and I just tested the library to ensure it works correctly. Therefore, I have written a simple benchmark like:

async fn bench(
        &mut self,
        _: &mut Self::WorkerState,
        _: &IterInfo,
    ) -> Result<IterReport> {
        Ok(IterReport {
            duration: std::time::Duration::from_secs(1),
            status: Status::success(0),
            bytes: 0,
            items: 1,
        })
    }

cargo run -- -c 1 -n 1 --fps 1

However, I encountered the error I mentioned above.