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[pinkforest]

Windows side seems to have problems with nanos Precision ...

https://github.com/cyborg-rs/cyborgtime/actions/runs/5357328059/jobs/9718041387?pr=4#step:4:85

.. now is this a standard library feature or some target oddity ?

This "works" but it's "broken":

pub fn format_rfc3339_nanos(system_time: SystemTime) -> Rfc3339Timestamp {
    Rfc3339Timestamp(system_time, Precision::Nanos)
}

       // TODO: precision bug / feature in Windows side !?                                                                                                           
        // https://github.com/cyborg-rs/cyborgtime/actions/runs/5357328059/jobs/9718041387?pr=4#step:4:85                                                             
        #[cfg(not(target_os = "windows"))]
        assert_eq!(
            format_rfc3339_nanos(UNIX_EPOCH +
                Duration::new(1_518_563_312, 789_456_123)).to_string(),
            "2018-02-13T23:08:32.789456123Z");
        #[cfg(target_os = "windows")]
        assert_eq!(
            format_rfc3339_nanos(UNIX_EPOCH +
                Duration::new(1_518_563_312, 789_456_123)).to_string(),
            "2018-02-13T23:08:32.789456100Z");