mirror of https://github.com/rust-lang/rust
43 lines
1.6 KiB
Plaintext
43 lines
1.6 KiB
Plaintext
error[E0597]: `a` does not live long enough
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--> $DIR/location-insensitive-scopes-issue-117146.rs:10:18
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LL | let a = ();
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| - binding `a` declared here
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LL | let b = |_| &a;
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| --- -^
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| | ||
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| | |borrowed value does not live long enough
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| | returning this value requires that `a` is borrowed for `'static`
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| value captured here
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...
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LL | }
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| - `a` dropped here while still borrowed
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note: due to current limitations in the borrow checker, this implies a `'static` lifetime
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--> $DIR/location-insensitive-scopes-issue-117146.rs:20:22
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LL | fn bad<F: Fn(&()) -> &()>(_: F) {}
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| ^^^
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error: implementation of `Fn` is not general enough
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--> $DIR/location-insensitive-scopes-issue-117146.rs:13:5
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LL | bad(&b);
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| ^^^^^^^ implementation of `Fn` is not general enough
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= note: closure with signature `fn(&'2 ()) -> &()` must implement `Fn<(&'1 (),)>`, for any lifetime `'1`...
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= note: ...but it actually implements `Fn<(&'2 (),)>`, for some specific lifetime `'2`
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error: implementation of `FnOnce` is not general enough
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--> $DIR/location-insensitive-scopes-issue-117146.rs:13:5
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LL | bad(&b);
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| ^^^^^^^ implementation of `FnOnce` is not general enough
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= note: closure with signature `fn(&'2 ()) -> &()` must implement `FnOnce<(&'1 (),)>`, for any lifetime `'1`...
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= note: ...but it actually implements `FnOnce<(&'2 (),)>`, for some specific lifetime `'2`
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error: aborting due to 3 previous errors
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For more information about this error, try `rustc --explain E0597`.
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