error: lifetime may not live long enough --> $DIR/type-checking-test-3.rs:11:13 | LL | fn test_wrong1<'a>(x: &dyn Foo<'static>, y: &'a u32) { | -- lifetime `'a` defined here LL | let _ = x as &dyn Bar<'a>; // Error | ^^^^^^^^^^^^^^^^^ type annotation requires that `'a` must outlive `'static` error: lifetime may not live long enough --> $DIR/type-checking-test-3.rs:16:13 | LL | fn test_wrong2<'a>(x: &dyn Foo<'a>) { | -- lifetime `'a` defined here LL | let _ = x as &dyn Bar<'static>; // Error | ^^^^^^^^^^^^^^^^^^^^^^ type annotation requires that `'a` must outlive `'static` error: aborting due to 2 previous errors