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warning: impl trait in impl method signature does not match trait method signature
--> $DIR/unconstrained-lt.rs:8:18
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LL | fn test() -> impl Sized;
| ---------- return type from trait method defined here
...
LL | fn test() -> &'a () {
| ^^^^^^
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= note: add `#[allow(refining_impl_trait)]` if it is intended for this to be part of the public API of this crate
= note: we are soliciting feedback, see issue #121718 <https://github.com/rust-lang/rust/issues/121718> for more information
= note: `#[warn(refining_impl_trait_internal)]` (part of `#[warn(refining_impl_trait)]`) on by default
help: replace the return type so that it matches the trait
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LL - fn test() -> &'a () {
LL + fn test() -> impl Sized {
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error[E0207]: the lifetime parameter `'a` is not constrained by the impl trait, self type, or predicates
--> $DIR/unconstrained-lt.rs:5:6
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LL | impl<'a, T> Foo for T {
| ^^ unconstrained lifetime parameter
error: aborting due to 1 previous error; 1 warning emitted
For more information about this error, try `rustc --explain E0207`.
|
