diff options
Diffstat (limited to '')
-rw-r--r-- | src/test/ui/associated-types/cache/project-fn-ret-invariant.krisskross.stderr | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/src/test/ui/associated-types/cache/project-fn-ret-invariant.krisskross.stderr b/src/test/ui/associated-types/cache/project-fn-ret-invariant.krisskross.stderr new file mode 100644 index 000000000..ada12c7ee --- /dev/null +++ b/src/test/ui/associated-types/cache/project-fn-ret-invariant.krisskross.stderr @@ -0,0 +1,36 @@ +error: lifetime may not live long enough + --> $DIR/project-fn-ret-invariant.rs:59:5 + | +LL | fn transmute<'a, 'b>(x: Type<'a>, y: Type<'b>) -> (Type<'a>, Type<'b>) { + | -- -- lifetime `'b` defined here + | | + | lifetime `'a` defined here +... +LL | (a, b) + | ^^^^^^ function was supposed to return data with lifetime `'b` but it is returning data with lifetime `'a` + | + = help: consider adding the following bound: `'a: 'b` + = note: requirement occurs because of the type `Type<'_>`, which makes the generic argument `'_` invariant + = note: the struct `Type<'a>` is invariant over the parameter `'a` + = help: see <https://doc.rust-lang.org/nomicon/subtyping.html> for more information about variance + +error: lifetime may not live long enough + --> $DIR/project-fn-ret-invariant.rs:59:5 + | +LL | fn transmute<'a, 'b>(x: Type<'a>, y: Type<'b>) -> (Type<'a>, Type<'b>) { + | -- -- lifetime `'b` defined here + | | + | lifetime `'a` defined here +... +LL | (a, b) + | ^^^^^^ function was supposed to return data with lifetime `'a` but it is returning data with lifetime `'b` + | + = help: consider adding the following bound: `'b: 'a` + = note: requirement occurs because of the type `Type<'_>`, which makes the generic argument `'_` invariant + = note: the struct `Type<'a>` is invariant over the parameter `'a` + = help: see <https://doc.rust-lang.org/nomicon/subtyping.html> for more information about variance + +help: `'a` and `'b` must be the same: replace one with the other + +error: aborting due to 2 previous errors + |