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|
error[E0106]: missing lifetime specifier
--> $DIR/impl-trait-missing-lifetime-gated.rs:9:54
|
LL | fn g(mut x: impl Iterator<Item = &()>) -> Option<&()> { x.next() }
| ^ expected named lifetime parameter
|
= help: this function's return type contains a borrowed value, but there is no value for it to be borrowed from
help: consider using the `'static` lifetime, but this is uncommon unless you're returning a borrowed value from a `const` or a `static`
|
LL | fn g(mut x: impl Iterator<Item = &()>) -> Option<&'static ()> { x.next() }
| +++++++
help: consider introducing a named lifetime parameter
|
LL | fn g<'a>(mut x: impl Iterator<Item = &'a ()>) -> Option<&'a ()> { x.next() }
| ++++ ~~~ ~~~
help: alternatively, you might want to return an owned value
|
LL - fn g(mut x: impl Iterator<Item = &()>) -> Option<&()> { x.next() }
LL + fn g(mut x: impl Iterator<Item = &()>) -> Option<()> { x.next() }
|
error[E0106]: missing lifetime specifier
--> $DIR/impl-trait-missing-lifetime-gated.rs:19:60
|
LL | async fn i(mut x: impl Iterator<Item = &()>) -> Option<&()> { x.next() }
| ^ expected named lifetime parameter
|
= help: this function's return type contains a borrowed value, but there is no value for it to be borrowed from
help: consider using the `'static` lifetime, but this is uncommon unless you're returning a borrowed value from a `const` or a `static`
|
LL | async fn i(mut x: impl Iterator<Item = &()>) -> Option<&'static ()> { x.next() }
| +++++++
help: consider introducing a named lifetime parameter
|
LL | async fn i<'a>(mut x: impl Iterator<Item = &'a ()>) -> Option<&'a ()> { x.next() }
| ++++ ~~~ ~~~
help: alternatively, you might want to return an owned value
|
LL - async fn i(mut x: impl Iterator<Item = &()>) -> Option<&()> { x.next() }
LL + async fn i(mut x: impl Iterator<Item = &()>) -> Option<()> { x.next() }
|
error[E0106]: missing lifetime specifier
--> $DIR/impl-trait-missing-lifetime-gated.rs:27:58
|
LL | fn g(mut x: impl Iterator<Item = &'_ ()>) -> Option<&'_ ()> { x.next() }
| ^^ expected named lifetime parameter
|
= help: this function's return type contains a borrowed value, but there is no value for it to be borrowed from
help: consider using the `'static` lifetime, but this is uncommon unless you're returning a borrowed value from a `const` or a `static`, or if you will only have owned values
|
LL | fn g(mut x: impl Iterator<Item = &'_ ()>) -> Option<&'static ()> { x.next() }
| ~~~~~~~
help: consider introducing a named lifetime parameter
|
LL | fn g<'a>(mut x: impl Iterator<Item = &'a ()>) -> Option<&'a ()> { x.next() }
| ++++ ~~~ ~~~
help: alternatively, you might want to return an owned value
|
LL - fn g(mut x: impl Iterator<Item = &'_ ()>) -> Option<&'_ ()> { x.next() }
LL + fn g(mut x: impl Iterator<Item = &'_ ()>) -> Option<()> { x.next() }
|
error[E0106]: missing lifetime specifier
--> $DIR/impl-trait-missing-lifetime-gated.rs:37:64
|
LL | async fn i(mut x: impl Iterator<Item = &'_ ()>) -> Option<&'_ ()> { x.next() }
| ^^ expected named lifetime parameter
|
= help: this function's return type contains a borrowed value, but there is no value for it to be borrowed from
help: consider using the `'static` lifetime, but this is uncommon unless you're returning a borrowed value from a `const` or a `static`, or if you will only have owned values
|
LL | async fn i(mut x: impl Iterator<Item = &'_ ()>) -> Option<&'static ()> { x.next() }
| ~~~~~~~
help: consider introducing a named lifetime parameter
|
LL | async fn i<'a>(mut x: impl Iterator<Item = &'a ()>) -> Option<&'a ()> { x.next() }
| ++++ ~~~ ~~~
help: alternatively, you might want to return an owned value
|
LL - async fn i(mut x: impl Iterator<Item = &'_ ()>) -> Option<&'_ ()> { x.next() }
LL + async fn i(mut x: impl Iterator<Item = &'_ ()>) -> Option<()> { x.next() }
|
error[E0106]: missing lifetime specifier
--> $DIR/impl-trait-missing-lifetime-gated.rs:47:37
|
LL | fn g(mut x: impl Foo) -> Option<&()> { x.next() }
| ^ expected named lifetime parameter
|
= help: this function's return type contains a borrowed value, but there is no value for it to be borrowed from
help: consider using the `'static` lifetime, but this is uncommon unless you're returning a borrowed value from a `const` or a `static`
|
LL | fn g(mut x: impl Foo) -> Option<&'static ()> { x.next() }
| +++++++
help: consider introducing a named lifetime parameter
|
LL | fn g<'a>(mut x: impl Foo) -> Option<&'a ()> { x.next() }
| ++++ ~~~
help: alternatively, you might want to return an owned value
|
LL - fn g(mut x: impl Foo) -> Option<&()> { x.next() }
LL + fn g(mut x: impl Foo) -> Option<()> { x.next() }
|
error[E0106]: missing lifetime specifier
--> $DIR/impl-trait-missing-lifetime-gated.rs:58:41
|
LL | fn g(mut x: impl Foo<()>) -> Option<&()> { x.next() }
| ^ expected named lifetime parameter
|
= help: this function's return type contains a borrowed value, but there is no value for it to be borrowed from
help: consider using the `'static` lifetime, but this is uncommon unless you're returning a borrowed value from a `const` or a `static`
|
LL | fn g(mut x: impl Foo<()>) -> Option<&'static ()> { x.next() }
| +++++++
help: consider introducing a named lifetime parameter
|
LL | fn g<'a>(mut x: impl Foo<()>) -> Option<&'a ()> { x.next() }
| ++++ ~~~
help: alternatively, you might want to return an owned value
|
LL - fn g(mut x: impl Foo<()>) -> Option<&()> { x.next() }
LL + fn g(mut x: impl Foo<()>) -> Option<()> { x.next() }
|
error[E0658]: anonymous lifetimes in `impl Trait` are unstable
--> $DIR/impl-trait-missing-lifetime-gated.rs:6:35
|
LL | fn f(_: impl Iterator<Item = &()>) {}
| ^ expected named lifetime parameter
|
= help: add `#![feature(anonymous_lifetime_in_impl_trait)]` to the crate attributes to enable
help: consider introducing a named lifetime parameter
|
LL | fn f<'a>(_: impl Iterator<Item = &'a ()>) {}
| ++++ ++
error[E0658]: anonymous lifetimes in `impl Trait` are unstable
--> $DIR/impl-trait-missing-lifetime-gated.rs:9:39
|
LL | fn g(mut x: impl Iterator<Item = &()>) -> Option<&()> { x.next() }
| ^ expected named lifetime parameter
|
= help: add `#![feature(anonymous_lifetime_in_impl_trait)]` to the crate attributes to enable
help: consider introducing a named lifetime parameter
|
LL | fn g<'a>(mut x: impl Iterator<Item = &'a ()>) -> Option<&()> { x.next() }
| ++++ ++
error[E0658]: anonymous lifetimes in `impl Trait` are unstable
--> $DIR/impl-trait-missing-lifetime-gated.rs:24:35
|
LL | fn f(_: impl Iterator<Item = &'_ ()>) {}
| ^^ expected named lifetime parameter
|
= help: add `#![feature(anonymous_lifetime_in_impl_trait)]` to the crate attributes to enable
help: consider introducing a named lifetime parameter
|
LL | fn f<'a>(_: impl Iterator<Item = &'a ()>) {}
| ++++ ~~
error[E0658]: anonymous lifetimes in `impl Trait` are unstable
--> $DIR/impl-trait-missing-lifetime-gated.rs:27:39
|
LL | fn g(mut x: impl Iterator<Item = &'_ ()>) -> Option<&'_ ()> { x.next() }
| ^^ expected named lifetime parameter
|
= help: add `#![feature(anonymous_lifetime_in_impl_trait)]` to the crate attributes to enable
help: consider introducing a named lifetime parameter
|
LL | fn g<'a>(mut x: impl Iterator<Item = &'a ()>) -> Option<&'_ ()> { x.next() }
| ++++ ~~
error[E0658]: anonymous lifetimes in `impl Trait` are unstable
--> $DIR/impl-trait-missing-lifetime-gated.rs:44:18
|
LL | fn f(_: impl Foo) {}
| ^^^ expected named lifetime parameter
|
= help: add `#![feature(anonymous_lifetime_in_impl_trait)]` to the crate attributes to enable
help: consider introducing a named lifetime parameter
|
LL | fn f<'a>(_: impl Foo<'a>) {}
| ++++ ++++
error[E0658]: anonymous lifetimes in `impl Trait` are unstable
--> $DIR/impl-trait-missing-lifetime-gated.rs:47:22
|
LL | fn g(mut x: impl Foo) -> Option<&()> { x.next() }
| ^^^ expected named lifetime parameter
|
= help: add `#![feature(anonymous_lifetime_in_impl_trait)]` to the crate attributes to enable
help: consider introducing a named lifetime parameter
|
LL | fn g<'a>(mut x: impl Foo<'a>) -> Option<&()> { x.next() }
| ++++ ++++
error[E0658]: anonymous lifetimes in `impl Trait` are unstable
--> $DIR/impl-trait-missing-lifetime-gated.rs:55:22
|
LL | fn f(_: impl Foo<()>) {}
| ^ expected named lifetime parameter
|
= help: add `#![feature(anonymous_lifetime_in_impl_trait)]` to the crate attributes to enable
help: consider introducing a named lifetime parameter
|
LL | fn f<'a>(_: impl Foo<'a, ()>) {}
| ++++ +++
error[E0658]: anonymous lifetimes in `impl Trait` are unstable
--> $DIR/impl-trait-missing-lifetime-gated.rs:58:26
|
LL | fn g(mut x: impl Foo<()>) -> Option<&()> { x.next() }
| ^ expected named lifetime parameter
|
= help: add `#![feature(anonymous_lifetime_in_impl_trait)]` to the crate attributes to enable
help: consider introducing a named lifetime parameter
|
LL | fn g<'a>(mut x: impl Foo<'a, ()>) -> Option<&()> { x.next() }
| ++++ +++
error: aborting due to 14 previous errors
Some errors have detailed explanations: E0106, E0658.
For more information about an error, try `rustc --explain E0106`.
|
