Unexpected E0271 while using Pointee trait

[CraftSpider]

I tried this code:

https://play.rust-lang.org/?version=nightly&mode=debug&edition=2021&gist=53652794c179fb2128d73e2f11888a8a

I expected to see this happen:

The code compiles successfully

Instead, this happened:

There are two errors, despite the error sites apparently being no different from the successfully compiled ones, aside from the presence of generic type inference.

I couldn't get this to happen with a user-defined trait, so it may be related to Pointee's magic implementations. On the other hand, it may be possible to trigger via user code and I just couldn't find an example.

Meta

Playground Nightly Version Used:

2021-12-01 48a5999fceeea84a8971

[compiler-errors]

I've confirmed this is fixed by the same fix I'll be putting up for #92128.

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