mirror of https://github.com/rust-lang/rust
37 lines
1.7 KiB
Plaintext
37 lines
1.7 KiB
Plaintext
error: lifetime may not live long enough
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--> $DIR/ret-impl-trait-one.rs:10:85
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LL | async fn async_ret_impl_trait3<'a, 'b>(a: &'a u8, b: &'b u8) -> impl Trait<'a> + 'b {
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| ________________________________--__--_______________________________________________^
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| | | |
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| | | lifetime `'b` defined here
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| | lifetime `'a` defined here
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LL | |
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LL | | (a, b)
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LL | | }
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| |_^ function was supposed to return data with lifetime `'b` but it is returning data with lifetime `'a`
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= help: consider adding the following bound: `'a: 'b`
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error[E0700]: hidden type for `impl Trait<'a>` captures lifetime that does not appear in bounds
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--> $DIR/ret-impl-trait-one.rs:16:80
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LL | async fn async_ret_impl_trait1<'a, 'b>(a: &'a u8, b: &'b u8) -> impl Trait<'a> {
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| ____________________________________--___________________________--------------_^
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| | | |
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| | | opaque type defined here
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| | hidden type `(&'a u8, &'b u8)` captures the lifetime `'b` as defined here
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LL | |
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LL | | (a, b)
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LL | | }
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| |_^
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help: to declare that `impl Trait<'a>` captures `'b`, you can add an explicit `'b` lifetime bound
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LL | async fn async_ret_impl_trait1<'a, 'b>(a: &'a u8, b: &'b u8) -> impl Trait<'a> + 'b {
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| ++++
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error: aborting due to 2 previous errors
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For more information about this error, try `rustc --explain E0700`.
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