mirror of https://github.com/rust-lang/rust
35 lines
1.5 KiB
Plaintext
35 lines
1.5 KiB
Plaintext
error[E0657]: `impl Trait` cannot capture higher-ranked lifetime from outer `impl Trait`
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--> $DIR/issue-67830.rs:21:62
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LL | fn test() -> impl for<'a> MyFn<&'a A, Output=impl Iterator + 'a> {
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| ^^
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note: lifetime declared here
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--> $DIR/issue-67830.rs:21:23
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LL | fn test() -> impl for<'a> MyFn<&'a A, Output=impl Iterator + 'a> {
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| ^^
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error: implementation of `FnOnce` is not general enough
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--> $DIR/issue-67830.rs:23:5
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LL | Wrap(|a| Some(a).into_iter())
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ implementation of `FnOnce` is not general enough
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= note: closure with signature `fn(&'2 A) -> std::option::IntoIter<&A>` must implement `FnOnce<(&'1 A,)>`, for any lifetime `'1`...
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= note: ...but it actually implements `FnOnce<(&'2 A,)>`, for some specific lifetime `'2`
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error: implementation of `FnOnce` is not general enough
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--> $DIR/issue-67830.rs:23:5
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LL | Wrap(|a| Some(a).into_iter())
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ implementation of `FnOnce` is not general enough
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= note: closure with signature `fn(&'2 A) -> std::option::IntoIter<&A>` must implement `FnOnce<(&'1 A,)>`, for any lifetime `'1`...
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= note: ...but it actually implements `FnOnce<(&'2 A,)>`, for some specific lifetime `'2`
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= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
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error: aborting due to 3 previous errors
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For more information about this error, try `rustc --explain E0657`.
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