error: lifetime may not live long enough --> $DIR/regions-close-over-type-parameter-multiple.rs:19:5 | LL | fn make_object_bad<'a,'b,'c,A:SomeTrait+'a+'b>(v: A) -> Box { | -- -- lifetime `'c` defined here | | | lifetime `'a` defined here LL | // A outlives 'a AND 'b...but not 'c. LL | Box::new(v) as Box | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function was supposed to return data with lifetime `'c` but it is returning data with lifetime `'a` | = help: consider adding the following bound: `'a: 'c` error: aborting due to previous error