[rustc.git] / src / test / ui / impl-trait / region-escape-via-bound.stderr

error[E0700]: hidden type for `impl Trait` captures lifetime that does not appear in bounds
  --> $DIR/region-escape-via-bound.rs:15:29
   |
LL | fn foo(x: Cell<&'x u32>) -> impl Trait<'y>
   |                             ^^^^^^^^^^^^^^
LL |
LL | where 'x: 'y
   |       -- hidden type `Cell<&'x u32>` captures the lifetime `'x` as defined here
   |
help: to declare that the `impl Trait` captures 'x, you can add an explicit `'x` lifetime bound
   |
LL | fn foo(x: Cell<&'x u32>) -> impl Trait<'y> + 'x
   |                                            ++++

error: aborting due to previous error

For more information about this error, try `rustc --explain E0700`.
Commit	Line	Data
94b46f34	1	error[E0700]: hidden type for `impl Trait` captures lifetime that does not appear in bounds
48663c56	2	--> $DIR/region-escape-via-bound.rs:15:29
0531ce1d XL	3	\|
	4	LL \| fn foo(x: Cell<&'x u32>) -> impl Trait<'y>
	5	\| ^^^^^^^^^^^^^^
c295e0f8 XL	6	LL \|
	7	LL \| where 'x: 'y
	8	\| -- hidden type `Cell<&'x u32>` captures the lifetime `'x` as defined here
0531ce1d	9	\|
c295e0f8	10	help: to declare that the `impl Trait` captures 'x, you can add an explicit `'x` lifetime bound
0531ce1d	11	\|
c295e0f8 XL	12	LL \| fn foo(x: Cell<&'x u32>) -> impl Trait<'y> + 'x
c295e0f8 XL	13	\| ++++
0531ce1d XL	14
	15	error: aborting due to previous error
	16
94b46f34	17	For more information about this error, try `rustc --explain E0700`.