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error[E0597]: `a` does not live long enough
--> $DIR/location-insensitive-scopes-issue-117146.rs:10:18
|
LL | let a = ();
| - binding `a` declared here
LL | let b = |_| &a;
| --- -^
| | ||
| | |borrowed value does not live long enough
| | returning this value requires that `a` is borrowed for `'static`
| value captured here
...
LL | }
| - `a` dropped here while still borrowed
|
note: due to a current limitation of the type system, this implies a `'static` lifetime
--> $DIR/location-insensitive-scopes-issue-117146.rs:20:11
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LL | fn bad<F: Fn(&()) -> &()>(_: F) {}
| ^^^^^^^^^^^^^^
note: requirement that the value outlives `'static` introduced here
--> $DIR/location-insensitive-scopes-issue-117146.rs:20:22
|
LL | fn bad<F: Fn(&()) -> &()>(_: F) {}
| ^^^
error: implementation of `Fn` is not general enough
--> $DIR/location-insensitive-scopes-issue-117146.rs:13:5
|
LL | bad(&b);
| ^^^^^^^ implementation of `Fn` is not general enough
|
= note: closure with signature `fn(&'2 ()) -> &()` must implement `Fn<(&'1 (),)>`, for any lifetime `'1`...
= note: ...but it actually implements `Fn<(&'2 (),)>`, for some specific lifetime `'2`
error: implementation of `FnOnce` is not general enough
--> $DIR/location-insensitive-scopes-issue-117146.rs:13:5
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LL | bad(&b);
| ^^^^^^^ implementation of `FnOnce` is not general enough
|
= note: closure with signature `fn(&'2 ()) -> &()` must implement `FnOnce<(&'1 (),)>`, for any lifetime `'1`...
= note: ...but it actually implements `FnOnce<(&'2 (),)>`, for some specific lifetime `'2`
error: aborting due to 3 previous errors
For more information about this error, try `rustc --explain E0597`.
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