mirror of https://github.com/rust-lang/rust
94 lines
3.9 KiB
Plaintext
94 lines
3.9 KiB
Plaintext
error[E0657]: `impl Trait` cannot capture higher-ranked lifetime from outer `impl Trait`
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--> $DIR/issue-88236-2.rs:15:61
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LL | fn make_impl() -> impl for<'a> Hrtb<'a, Assoc = impl Send + 'a> {}
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| ^^
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note: lifetime declared here
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--> $DIR/issue-88236-2.rs:15:28
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LL | fn make_impl() -> impl for<'a> Hrtb<'a, Assoc = impl Send + 'a> {}
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| ^^
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error[E0657]: `impl Trait` cannot capture higher-ranked lifetime from outer `impl Trait`
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--> $DIR/issue-88236-2.rs:18:80
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LL | fn make_weird_impl<'b>(x: &'b ()) -> impl for<'a> Hrtb<'a, Assoc = impl Send + 'a> {
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| ^^
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note: lifetime declared here
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--> $DIR/issue-88236-2.rs:18:47
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LL | fn make_weird_impl<'b>(x: &'b ()) -> impl for<'a> Hrtb<'a, Assoc = impl Send + 'a> {
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| ^^
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error: implementation of `Hrtb` is not general enough
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--> $DIR/issue-88236-2.rs:20:5
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LL | &()
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| ^^^ implementation of `Hrtb` is not general enough
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= note: `Hrtb<'0>` would have to be implemented for the type `&()`, for any lifetime `'0`...
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= note: ...but `Hrtb<'1>` is actually implemented for the type `&'1 ()`, for some specific lifetime `'1`
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error: implementation of `Hrtb` is not general enough
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--> $DIR/issue-88236-2.rs:20:5
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LL | &()
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| ^^^ implementation of `Hrtb` is not general enough
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= note: `Hrtb<'a>` would have to be implemented for the type `&()`
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= note: ...but `Hrtb<'0>` is actually implemented for the type `&'0 ()`, for some specific lifetime `'0`
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error[E0657]: `impl Trait` cannot capture higher-ranked lifetime from outer `impl Trait`
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--> $DIR/issue-88236-2.rs:25:78
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LL | fn make_bad_impl<'b>(x: &'b ()) -> impl for<'a> Hrtb<'a, Assoc = impl Send + 'a> {
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| ^^
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note: lifetime declared here
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--> $DIR/issue-88236-2.rs:25:45
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LL | fn make_bad_impl<'b>(x: &'b ()) -> impl for<'a> Hrtb<'a, Assoc = impl Send + 'a> {
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| ^^
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error: lifetime may not live long enough
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--> $DIR/issue-88236-2.rs:27:5
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LL | fn make_bad_impl<'b>(x: &'b ()) -> impl for<'a> Hrtb<'a, Assoc = impl Send + 'a> {
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| -- lifetime `'b` defined here
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LL |
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LL | x
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| ^ returning this value requires that `'b` must outlive `'static`
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help: to declare that `impl for<'a> Hrtb<'a, Assoc = impl Send + '_>` captures data from argument `x`, you can add an explicit `'b` lifetime bound
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LL | fn make_bad_impl<'b>(x: &'b ()) -> impl for<'a> Hrtb<'a, Assoc = impl Send + 'a> + 'b {
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| ++++
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help: to declare that `impl Send + 'a` captures data from argument `x`, you can add an explicit `'b` lifetime bound
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LL | fn make_bad_impl<'b>(x: &'b ()) -> impl for<'a> Hrtb<'a, Assoc = impl Send + 'a + 'b> {
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| ++++
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error: implementation of `Hrtb` is not general enough
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--> $DIR/issue-88236-2.rs:27:5
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LL | x
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| ^ implementation of `Hrtb` is not general enough
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= note: `Hrtb<'0>` would have to be implemented for the type `&()`, for any lifetime `'0`...
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= note: ...but `Hrtb<'1>` is actually implemented for the type `&'1 ()`, for some specific lifetime `'1`
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error: implementation of `Hrtb` is not general enough
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--> $DIR/issue-88236-2.rs:27:5
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LL | x
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| ^ implementation of `Hrtb` is not general enough
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= note: `Hrtb<'a>` would have to be implemented for the type `&()`
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= note: ...but `Hrtb<'0>` is actually implemented for the type `&'0 ()`, for some specific lifetime `'0`
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error: aborting due to 8 previous errors
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For more information about this error, try `rustc --explain E0657`.
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