You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: all-levels.rs
    path of file: ./repos/tracing/examples/examples
    
    the code of the file until where you have to start completion: use tracing::Level;

#[no_mangle]
#[inline(never)]
pub fn event() {
    tracing::info!("general informational messages releva
    
fn main() {
    tracing_subscriber::fmt()
        // all spans/events with a level higher than TRACE (e.g, info, warn, etc.)
        // will be written to stdout.
        .with_max_level(Level::TRACE)
        // sets this to be the default, global collector for this application.
        .init();
    event();

    tracing::error!("SOMETHING IS SERIOUSLY WRONG!!!");
    tracing::warn!("important informational messages; might indicate an error");
    tracing::info!("general informational messages relevant to users");
    tracing::debug!("diagnostics used for internal debugging of a library or application");
    tracing::trace!("very verbose diagnostic events");
}