mirror of https://github.com/rust-lang/rust
251 lines
12 KiB
Plaintext
251 lines
12 KiB
Plaintext
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:28:58
|
|
|
|
|
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:38:64
|
|
|
|
|
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:49:37
|
|
|
|
|
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:60:41
|
|
|
|
|
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
|
|
= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
|
|
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
|
|
= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
|
|
help: consider introducing a named lifetime parameter
|
|
|
|
|
LL | fn g<'a>(mut x: impl Iterator<Item = &'a ()>) -> Option<&()> { x.next() }
|
|
| ++++ ++
|
|
|
|
error: lifetime may not live long enough
|
|
--> $DIR/impl-trait-missing-lifetime-gated.rs:19:67
|
|
|
|
|
LL | async fn i(mut x: impl Iterator<Item = &()>) -> Option<&()> { x.next() }
|
|
| ----------------------------------------------------------- ^^^^^^^^ returning this value requires that `'1` must outlive `'static`
|
|
| |
|
|
| return type `impl Future<Output = Option<&'static ()>>` contains a lifetime `'1`
|
|
|
|
error[E0658]: anonymous lifetimes in `impl Trait` are unstable
|
|
--> $DIR/impl-trait-missing-lifetime-gated.rs:25:35
|
|
|
|
|
LL | fn f(_: impl Iterator<Item = &'_ ()>) {}
|
|
| ^^ expected named lifetime parameter
|
|
|
|
|
= help: add `#![feature(anonymous_lifetime_in_impl_trait)]` to the crate attributes to enable
|
|
= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
|
|
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:28:39
|
|
|
|
|
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
|
|
= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
|
|
help: consider introducing a named lifetime parameter
|
|
|
|
|
LL | fn g<'a>(mut x: impl Iterator<Item = &'a ()>) -> Option<&'_ ()> { x.next() }
|
|
| ++++ ~~
|
|
|
|
error: lifetime may not live long enough
|
|
--> $DIR/impl-trait-missing-lifetime-gated.rs:38:73
|
|
|
|
|
LL | async fn i(mut x: impl Iterator<Item = &'_ ()>) -> Option<&'_ ()> { x.next() }
|
|
| ----------------------------------------------------------------- ^^^^^^^^ returning this value requires that `'1` must outlive `'static`
|
|
| |
|
|
| return type `impl Future<Output = Option<&'static ()>>` contains a lifetime `'1`
|
|
|
|
error[E0658]: anonymous lifetimes in `impl Trait` are unstable
|
|
--> $DIR/impl-trait-missing-lifetime-gated.rs:46:18
|
|
|
|
|
LL | fn f(_: impl Foo) {}
|
|
| ^^^ expected named lifetime parameter
|
|
|
|
|
= help: add `#![feature(anonymous_lifetime_in_impl_trait)]` to the crate attributes to enable
|
|
= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
|
|
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:49:22
|
|
|
|
|
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
|
|
= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
|
|
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:57:22
|
|
|
|
|
LL | fn f(_: impl Foo<()>) {}
|
|
| ^ expected named lifetime parameter
|
|
|
|
|
= help: add `#![feature(anonymous_lifetime_in_impl_trait)]` to the crate attributes to enable
|
|
= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
|
|
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:60:26
|
|
|
|
|
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
|
|
= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
|
|
help: consider introducing a named lifetime parameter
|
|
|
|
|
LL | fn g<'a>(mut x: impl Foo<'a, ()>) -> Option<&()> { x.next() }
|
|
| ++++ +++
|
|
|
|
error: aborting due to 16 previous errors
|
|
|
|
Some errors have detailed explanations: E0106, E0658.
|
|
For more information about an error, try `rustc --explain E0106`.
|