我用什么生命周期创建相互引用的Rust结构？

我想让结构成员知道他们的父母.这大约是我正在尝试做的事情:

struct Parent<'me> {
    children: Vec>,
}

struct Child<'me> {
    parent: &'me Parent<'me>,
    i: i32,
}

fn main() {
    let mut p = Parent { children: vec![] };
    let c1 = Child { parent: &p, i: 1 };
    p.children.push(c1);
}

我试图用生命周期来安抚编译器而不完全理解我在做什么.

这是我坚持的错误信息:

error[E0502]: cannot borrow `p.children` as mutable because `p` is also borrowed as immutable
  --> src/main.rs:13:5
   |
12 |     let c1 = Child { parent: &p, i: 1 };
   |                               - immutable borrow occurs here
13 |     p.children.push(c1);
   |     ^^^^^^^^^^ mutable borrow occurs here
14 | }
   | - immutable borrow ends here