[rustc.git] / src / test / ui / suggestions / issue-79843-impl-trait-with-missing-bounds-on-async-fn.stderr

error[E0277]: `<impl Foo as Foo>::Bar` cannot be sent between threads safely
  --> $DIR/issue-79843-impl-trait-with-missing-bounds-on-async-fn.rs:14:20
   |
LL |     assert_is_send(&bar);
   |                    ^^^^ `<impl Foo as Foo>::Bar` cannot be sent between threads safely
   |
   = help: the trait `Send` is not implemented for `<impl Foo as Foo>::Bar`
note: required by a bound in `assert_is_send`
  --> $DIR/issue-79843-impl-trait-with-missing-bounds-on-async-fn.rs:30:22
   |
LL | fn assert_is_send<T: Send>(_: &T) {}
   |                      ^^^^ required by this bound in `assert_is_send`
help: introduce a type parameter with a trait bound instead of using `impl Trait`
   |
LL | async fn run<F: Foo>(_: &(), foo: F) -> std::io::Result<()> where <F as Foo>::Bar: Send {
   |             ++++++++              ~                         +++++++++++++++++++++++++++

error[E0277]: `<impl Foo as Foo>::Bar` cannot be sent between threads safely
  --> $DIR/issue-79843-impl-trait-with-missing-bounds-on-async-fn.rs:24:20
   |
LL |     assert_is_send(&bar);
   |                    ^^^^ `<impl Foo as Foo>::Bar` cannot be sent between threads safely
   |
   = help: the trait `Send` is not implemented for `<impl Foo as Foo>::Bar`
note: required by a bound in `assert_is_send`
  --> $DIR/issue-79843-impl-trait-with-missing-bounds-on-async-fn.rs:30:22
   |
LL | fn assert_is_send<T: Send>(_: &T) {}
   |                      ^^^^ required by this bound in `assert_is_send`
help: introduce a type parameter with a trait bound instead of using `impl Trait`
   |
LL | async fn run2<F: Foo>(_: &(), foo: F) -> std::io::Result<()> where <F as Foo>::Bar: Send {
   |              ~~~~~~~~              ~                         +++++++++++++++++++++++++++

error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0277`.
Commit	Line	Data
fc512014 XL	1	error[E0277]: `<impl Foo as Foo>::Bar` cannot be sent between threads safely
	2	--> $DIR/issue-79843-impl-trait-with-missing-bounds-on-async-fn.rs:14:20
	3	\|
	4	LL \| assert_is_send(&bar);
	5	\| ^^^^ `<impl Foo as Foo>::Bar` cannot be sent between threads safely
fc512014 XL	6	\|
fc512014 XL	7	= help: the trait `Send` is not implemented for `<impl Foo as Foo>::Bar`
94222f64 XL	8	note: required by a bound in `assert_is_send`
	9	--> $DIR/issue-79843-impl-trait-with-missing-bounds-on-async-fn.rs:30:22
	10	\|
	11	LL \| fn assert_is_send<T: Send>(_: &T) {}
	12	\| ^^^^ required by this bound in `assert_is_send`
fc512014 XL	13	help: introduce a type parameter with a trait bound instead of using `impl Trait`
	14	\|
	15	LL \| async fn run<F: Foo>(_: &(), foo: F) -> std::io::Result<()> where <F as Foo>::Bar: Send {
94222f64	16	\| ++++++++ ~ +++++++++++++++++++++++++++
fc512014 XL	17
	18	error[E0277]: `<impl Foo as Foo>::Bar` cannot be sent between threads safely
	19	--> $DIR/issue-79843-impl-trait-with-missing-bounds-on-async-fn.rs:24:20
	20	\|
	21	LL \| assert_is_send(&bar);
	22	\| ^^^^ `<impl Foo as Foo>::Bar` cannot be sent between threads safely
fc512014 XL	23	\|
fc512014 XL	24	= help: the trait `Send` is not implemented for `<impl Foo as Foo>::Bar`
94222f64 XL	25	note: required by a bound in `assert_is_send`
	26	--> $DIR/issue-79843-impl-trait-with-missing-bounds-on-async-fn.rs:30:22
	27	\|
	28	LL \| fn assert_is_send<T: Send>(_: &T) {}
	29	\| ^^^^ required by this bound in `assert_is_send`
fc512014 XL	30	help: introduce a type parameter with a trait bound instead of using `impl Trait`
	31	\|
	32	LL \| async fn run2<F: Foo>(_: &(), foo: F) -> std::io::Result<()> where <F as Foo>::Bar: Send {
94222f64	33	\| ~~~~~~~~ ~ +++++++++++++++++++++++++++
fc512014 XL	34
	35	error: aborting due to 2 previous errors
	36
	37	For more information about this error, try `rustc --explain E0277`.