std::fs::read_dir issue with spiffs

[axos88]

Executing

    unsafe {
        let base_path = CString::new("/spiffs").unwrap();
        let storage = CString::new("storage").unwrap();

        let conf = esp_idf_sys::esp_vfs_spiffs_conf_t {
            base_path: base_path.as_ptr(),
            partition_label: storage.as_ptr(),
            max_files: 5,
            format_if_mount_failed: true,
        };

        esp_nofail!(esp_idf_sys::esp_vfs_spiffs_register(&conf));
    }

    info!("FS Contents: {:?}", fs::read_dir("/spiffs").unwrap().collect::<Vec<_>>());
    info!("FS Contents: {:?}", fs::read_dir("/spiffs").unwrap().collect::<Vec<_>>());

    fs::read("/spiffs/existing_file").unwrap();

    info!("FS Contents: {:?}", fs::read_dir("/spiffs").unwrap().collect::<Vec<_>>());

Outputs the following:

I (411) doorlock::filesystem: FS Contents: [Ok(DirEntry("/spiffs/account")), Ok(DirEntry("/spiffs/existing_file")), Ok(DirEntry("/spiffs/foo.txt"))]
I (431) doorlock::filesystem: FS Contents: [Ok(DirEntry("/spiffs/account")), Ok(DirEntry("/spiffs/existing_file")), Ok(DirEntry("/spiffs/foo.txt"))]
I (451) doorlock::filesystem: FS Contents: [Ok(DirEntry("/spiffs/account")), Ok(DirEntry("/spiffs/existing_file")), Ok(DirEntry("/spiffs/foo.txt")), Err(Os { code: 5, kind: Uncategorized, message: "I/O error" })]

I have applied the time64 patch to std