jviereck

// Goal of this file:
//   Figure out how the lifetimes of a mutable reference is exactly defined
//   and what happens if a `&mut` reference A is assigned to another `&mut`
//   reference B - is the lifetime of B inheriated from A or does the lifetime
//   of B depends on the location of the definition of B?

struct Entry<'a> {
    id: isize,
    next: Option<&'a mut Entry<'a>>,
}