rust/src/test/ui/lifetimes/issue-79187.nll.stderr

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error[E0308]: mismatched types
--> $DIR/issue-79187.rs:5:5
|
LL | thing(f);
| ^^^^^^^^ one type is more general than the other
|
= note: expected type `for<'r> FnOnce<(&'r u32,)>`
found type `FnOnce<(&u32,)>`
note: this closure does not fulfill the lifetime requirements
--> $DIR/issue-79187.rs:4:13
|
LL | let f = |_| ();
| ^^^^^^
error: implementation of `FnOnce` is not general enough
--> $DIR/issue-79187.rs:5:5
|
LL | thing(f);
| ^^^^^^^^ implementation of `FnOnce` is not general enough
|
= note: closure with signature `fn(&'2 u32)` must implement `FnOnce<(&'1 u32,)>`, for any lifetime `'1`...
= note: ...but it actually implements `FnOnce<(&'2 u32,)>`, for some specific lifetime `'2`
error: aborting due to 2 previous errors
For more information about this error, try `rustc --explain E0308`.