Compiler fails to unify existential associated type #57807
Labels
A-impl-trait
Area: `impl Trait`. Universally / existentially quantified anonymous types with static dispatch.
A-type-system
Area: Type system
F-type_alias_impl_trait
`#[feature(type_alias_impl_trait)]`
requires-nightly
This issue requires a nightly compiler in some way.
The following code fails to compile (playground):
with the following error
If you make this modification, it compiles fine:
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