Function detailed_format 

pub fn detailed_format(
    w: &mut dyn Write,
    now: &mut DeferredNow,
    record: &Record<'_>,
) -> Result<(), Error>

A logline-formatter that produces log lines like
[2016-01-13 15:25:01.640870 +01:00] INFO [foo::bar] src/foo/bar.rs:26: Task successfully read from conf.json

I.e. with timestamp, module path and file location.

Errors

See std::write