Unboxed trait object can be stored in struct without lifetime

[huonw]

trait Foo { fn method(&self); }

struct Wrapper(Foo);

fn main() {}

It seems to me that this should be requiring a lifetime, e.g. struct Wrapper<'a>(Foo + 'a); or struct Wrapper(Foo + 'static);. However, it may be the intended behaviour too, nominating for clarification.

[ben0x539]

Isn't this RFC 599?

[nikomatsakis]

I agree this is RFC 599.

[pnkfelix]

not-a-bug, (as designed), closing.