[rustc.git] / src / test / ui / underscore-lifetime / dyn-trait-underscore.stderr

error[E0759]: `items` has an anonymous lifetime `'_` but it needs to satisfy a `'static` lifetime requirement
  --> $DIR/dyn-trait-underscore.rs:8:20
   |
LL | fn a<T>(items: &[T]) -> Box<dyn Iterator<Item=&T>> {
   |                ---- this data with an anonymous lifetime `'_`...
LL |     //                      ^^^^^^^^^^^^^^^^^^^^^ bound *here* defaults to `'static`
LL |     Box::new(items.iter())
   |     ---------------^^^^--- ...is captured and required to live as long as `'static` here
   |
help: to declare that the trait object captures data from argument `items`, you can add an explicit `'_` lifetime bound
   |
LL | fn a<T>(items: &[T]) -> Box<dyn Iterator<Item=&T> + '_> {
   |                                                   ++++

error: aborting due to previous error

For more information about this error, try `rustc --explain E0759`.
Commit	Line	Data
3dfed10e	1	error[E0759]: `items` has an anonymous lifetime `'_` but it needs to satisfy a `'static` lifetime requirement
0731742a	2	--> $DIR/dyn-trait-underscore.rs:8:20
0531ce1d	3	\|
f9f354fc	4	LL \| fn a<T>(items: &[T]) -> Box<dyn Iterator<Item=&T>> {
f035d41b	5	\| ---- this data with an anonymous lifetime `'_`...
f9f354fc	6	LL \| // ^^^^^^^^^^^^^^^^^^^^^ bound here defaults to `'static`
532ac7d7	7	LL \| Box::new(items.iter())
f035d41b	8	\| ---------------^^^^--- ...is captured and required to live as long as `'static` here
0531ce1d	9	\|
f035d41b	10	help: to declare that the trait object captures data from argument `items`, you can add an explicit `'_` lifetime bound
0531ce1d	11	\|
f9f354fc	12	LL \| fn a<T>(items: &[T]) -> Box<dyn Iterator<Item=&T> + '_> {
94222f64	13	\| ++++
0531ce1d XL	14
	15	error: aborting due to previous error
	16
f035d41b	17	For more information about this error, try `rustc --explain E0759`.