diff options
Diffstat (limited to 'src/test/ui/regions/regions-bounded-method-type-parameters-trait-bound.stderr')
| -rw-r--r-- | src/test/ui/regions/regions-bounded-method-type-parameters-trait-bound.stderr | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/src/test/ui/regions/regions-bounded-method-type-parameters-trait-bound.stderr b/src/test/ui/regions/regions-bounded-method-type-parameters-trait-bound.stderr new file mode 100644 index 000000000..0e0086be9 --- /dev/null +++ b/src/test/ui/regions/regions-bounded-method-type-parameters-trait-bound.stderr @@ -0,0 +1,18 @@ +error: lifetime may not live long enough + --> $DIR/regions-bounded-method-type-parameters-trait-bound.rs:20:5 + | +LL | fn caller2<'a,'b,F:Foo<'a>>(a: Inv<'a>, b: Inv<'b>, f: F) { + | -- -- lifetime `'b` defined here + | | + | lifetime `'a` defined here +LL | // Here the value provided for 'y is 'b, and hence 'b:'a does not hold. +LL | f.method(b); + | ^^^^^^^^^^^ argument requires that `'b` must outlive `'a` + | + = help: consider adding the following bound: `'b: 'a` + = note: requirement occurs because of the type `Inv<'_>`, which makes the generic argument `'_` invariant + = note: the struct `Inv<'a>` is invariant over the parameter `'a` + = help: see <https://doc.rust-lang.org/nomicon/subtyping.html> for more information about variance + +error: aborting due to previous error + |