Function playing_logic_loop 

pub fn playing_logic_loop(
    direction: &Arc<RwLock<Direction>>,
    snake: &Arc<RwLock<SnakeBody<'_>>>,
    gs: &Arc<RwLock<GameState>>,
    carte: &Arc<RwLock<Map<'_>>>,
    fruits_manager: &Arc<RwLock<FruitsManager<'_, '_>>>,
    (game_speed, snake_symbols, negative_size_fruits, snake_growth_factor): (Speed, String, bool, u16),
)

Panics

if Arc panics while holding the resources (poisoning), no recovery mechanism implemented better crash