use std::collections::HashMap;

struct Node<'a> {
    name : &'a str,
    children : Vec<Node<'a>>,
}


fn append_children(node : &mut Node, nodes : &HashMap<&str, Vec<&str>>) {
    if let Some(n_arr) = nodes.get(node.name) {
        for n in n_arr {
            node.children.push(Node { name : n.clone(), children : Vec::new() });
            append_children(&mut node.children[node.children.len()-1], nodes);
        }
    }
}


---

error[E0623]: lifetime mismatch
  --> src/main.rs:11:32
   |
8  | fn append_children(node : &mut Node, nodes : &HashMap<&str, Vec<&str>>) {
   |                                ----                             ---- these two types are declared with different lifetimes...
...
11 |             node.children.push(Node { name : n.clone(), children : Vec::new() });
   |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ...but data from `nodes` flows into `node` here

error: aborting due to previous error

error: could not compile `hello_cargo4`.