What pointers do I need to add to make this work? Edges should store references to nodes; nodes store references to edges.

maze.rs

struct Node<D> {
  edges: Vec<Edge<D>>,
  pub data: D
}

impl<D> Node<D> {
  pub fn new(data: D) -> Node<D> {
    Node{data: data, edges: Vec::new()}
  }
}

struct Edge<D> {
  nodes: [Node<D>, .. 2],
  pub cost: f64
}

impl<D> Edge<D> {
  pub fn new(node_a: & mut Node<D>, node_b: & mut Node<D>, cost: f64) -> Edge<D> {
    let new_edge = Edge{nodes: [node_a, node_b], cost: cost};
    node_a.edges.push(new_edge);
    node_b.edges.push(new_edge);
    new_edge
  }
}

struct NodeInfo {
  x: u32,
  y: u32,
  symbol: char,
  symbol_cost: f32
}

fn main() {
  let mut a = Node::new("Alpha");
  let mut b = Node::new("Beta");
  let mut c = Node::new("Gamma");
  println!("{}, {}, {}", a.data, b.data, c.data);
}