mirror of https://github.com/rust-lang/rust
53 lines
1.8 KiB
Plaintext
53 lines
1.8 KiB
Plaintext
error[E0309]: the parameter type `T` may not live long enough
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--> $DIR/regions-struct-not-wf.rs:13:16
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LL | impl<'a, T> Trait<'a, T> for usize {
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| -- the parameter type `T` must be valid for the lifetime `'a` as defined here...
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LL | type Out = &'a T;
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| ^^^^^ ...so that the reference type `&'a T` does not outlive the data it points at
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help: consider adding an explicit lifetime bound
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LL | impl<'a, T: 'a> Trait<'a, T> for usize {
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| ++++
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error[E0309]: the parameter type `T` may not live long enough
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--> $DIR/regions-struct-not-wf.rs:21:16
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LL | impl<'a, T> Trait<'a, T> for u32 {
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| -- the parameter type `T` must be valid for the lifetime `'a` as defined here...
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LL | type Out = RefOk<'a, T>;
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| ^^^^^^^^^^^^ ...so that the type `T` will meet its required lifetime bounds...
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note: ...that is required by this bound
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--> $DIR/regions-struct-not-wf.rs:16:20
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LL | struct RefOk<'a, T:'a> {
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| ^^
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help: consider adding an explicit lifetime bound
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LL | impl<'a, T: 'a> Trait<'a, T> for u32 {
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| ++++
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error[E0491]: in type `&'a &'b T`, reference has a longer lifetime than the data it references
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--> $DIR/regions-struct-not-wf.rs:25:16
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LL | type Out = &'a &'b T;
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| ^^^^^^^^^
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note: the pointer is valid for the lifetime `'a` as defined here
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--> $DIR/regions-struct-not-wf.rs:24:6
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LL | impl<'a, 'b, T> Trait1<'a, 'b, T> for u32 {
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| ^^
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note: but the referenced data is only valid for the lifetime `'b` as defined here
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--> $DIR/regions-struct-not-wf.rs:24:10
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LL | impl<'a, 'b, T> Trait1<'a, 'b, T> for u32 {
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| ^^
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error: aborting due to 3 previous errors
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Some errors have detailed explanations: E0309, E0491.
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For more information about an error, try `rustc --explain E0309`.
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