fn create_stop(
stop: &RawTransitStop,
sidewalk_pts: &HashMap<HashablePt2D, Position>,
gtfs_to_stop_id: &mut HashMap<String, TransitStopID>,
map: &mut Map
) -> Result<()>
fn create_stop(
stop: &RawTransitStop,
sidewalk_pts: &HashMap<HashablePt2D, Position>,
gtfs_to_stop_id: &mut HashMap<String, TransitStopID>,
map: &mut Map
) -> Result<()>