You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: system_query_set_get_lifetime_safety.rs
    path of file: ./repos/bevy/crates/bevy_ecs_compile_fail_tests/tests/ui
    
    the code of the file until where you have to start completion: use bevy_ecs::prelude::*;

#[derive(Component)]
struct A(usize);

fn query_set(mut queries: ParamSet<(Query<&mut A>, Query<&A>)>, e: Entity) {
    let mut q2 = queries.p0();
    
fn query_set_flip(mut queries: ParamSet<(Query<&mut A>, Query<&A>)>, e: Entity) {
    let q1 = queries.p1();
    let a = q1.get(e).unwrap();

    let mut q2 = queries.p0();
    let mut b = q2.get_mut(e).unwrap();

    // this should fail to compile
    b.0 = a.0
}