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pub struct InfoGuard {
    instant: std::time::Instant,
    message: String,
}

impl InfoGuard {
    pub fn new(message: String) -> InfoGuard {
        InfoGuard {
            instant: std::time::Instant::now(),
            message,
        }
    }
}

impl Drop for InfoGuard {
    fn drop(&mut self) {
        tracing::info!(message=self.message.as_str(), elapsed=tracing::field::debug(self.instant.elapsed()));
    }
}