Constant HTTP__SERVER__REQUEST__TIME_IN_QUEUE 

pub const HTTP__SERVER__REQUEST__TIME_IN_QUEUE: &str = "http.server.request.time_in_queue";

The time in milliseconds the request spent in the server queue before processing began. Measured from the X-Request-Start header set by reverse proxies (e.g., Nginx, HAProxy, Heroku) to when the application started handling the request.

• PII: Maybe
• Rewriting behavior: None