rust/src/test/ui/variance/variance-use-covariant-struct-1.nll.stderr

error: lifetime may not live long enough
  --> $DIR/variance-use-covariant-struct-1.rs:14:5
   |
LL | fn foo<'min,'max>(v: SomeStruct<&'min ()>)
   |        ---- ---- lifetime `'max` defined here
   |        |
   |        lifetime `'min` defined here
...
LL |     v
   |     ^ function was supposed to return data with lifetime `'max` but it is returning data with lifetime `'min`
   |
   = help: consider adding the following bound: `'min: 'max`

error: aborting due to previous error
Change compare mode to use -Zborrowck=mir 2019-01-27 05:03:21 -06:00			`error: lifetime may not live long enough`
More nll revisions 2022-04-01 21:12:17 -05:00			`--> $DIR/variance-use-covariant-struct-1.rs:14:5`
Change compare mode to use -Zborrowck=mir 2019-01-27 05:03:21 -06:00			`\|`
			`LL \| fn foo<'min,'max>(v: SomeStruct<&'min ()>)`
			\| ---- ---- lifetime `'max` defined here
			`\| \|`
			\| lifetime `'min` defined here
			`...`
			`LL \| v`
Ensure that early-bound function lifetimes are always 'local' During borrowchecking, we treat any free (early-bound) regions on the 'defining type' as `RegionClassification::External`. According to the doc comments, we should only have 'external' regions when checking a closure/generator. However, a plain function can also have some if its regions be considered 'early bound' - this occurs when the region is constrained by an argument, appears in a `where` clause, or in an opaque type. This was causing us to incorrectly mark these regions as 'external', which caused some diagnostic code to act as if we were referring to a 'parent' region from inside a closure. This PR marks all instantiated region variables as 'local' when we're borrow-checking something other than a closure/generator/inline-const. 2021-12-31 15:55:34 -06:00			\| ^ function was supposed to return data with lifetime `'max` but it is returning data with lifetime `'min`
update tests 2019-10-27 09:39:14 -05:00			`\|`
			= help: consider adding the following bound: `'min: 'max`
Change compare mode to use -Zborrowck=mir 2019-01-27 05:03:21 -06:00
			`error: aborting due to previous error`