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compiles.rs

#[derive(Debug)]
struct Foo<'a> {
    x: &'a i32,
}

fn main() {
    let y = &5;           
    {                         
        let foo;
        foo = Foo { x: y }; 
        println!("{:?}", foo);
    }                      
                          
}    

error.rs

#[derive(Debug)]
struct Foo<'a> {
    x: &'a i32,
}

fn main() {
    let foo;
    {                         
        let y = &5;           
        foo = Foo { x: y }; 
    }                      
                          
    println!("{:?}", foo);
}