When passing too many lifetimes to a struct, there are tons of unrelated errors about needing explicit lifetime annotations about rust HOT 2 CLOSED

struct Foo<'a, 'b, 'c, 'd>(&'a(), &'b(), &'c(), &'d());

impl<'a, 'b, 'c, 'd>  Foo<'a, 'b, 'c, 'd> {
    fn acc(&mut self, _bar: &Bar) -> &'d() {
        todo!()
    }
}

struct Bar;

impl<'a> Bar {
    fn boom(&self, foo: &mut Foo<'_, '_, '_, '_, 'a>) -> Result<(), &'a ()> {
        self.bar().map_err(|()| foo.acc(self))?;
        Ok(())
    }
    fn bar(&self) -> Result<(), &'a ()> { todo!() }
}

fn main() {}