chrono/fuzz/fuzz_targets/fuzz_reader.rs

#![no_main]
use libfuzzer_sys::fuzz_target;

fuzz_target!(|data: &[u8]| {
    use chrono::prelude::*;
    if let Ok(data) = std::str::from_utf8(data) {
        let _ = DateTime::parse_from_rfc2822(data);
        let _ = DateTime::parse_from_rfc3339(data);
    }
});