Possible bug in vscode tooltip shown when hovering over a function

[Tem3dy]

rust-analyzer version: 0.3.2743-standalone

rustc version: rustc 1.92.0 (ded5c06cf 2025-12-08)

editor or extension: VSCode with rust-analyzer

I'm not sure where else to put this assuming it may be a bug which leaks some kind of internal information, and if it is not a bug, I would like to know whether this can be turned off or request a setting so it can be turned off.

Basically, whenever trying to view the content of a tooltip of a function, bunch of irrelevant stuff comes up before the documentation, as can be viewed in the screenshot.

The thing is it only happens on some functions and I'm not sure what the common denominator is, but it likely has to do with the "notable traits" it mentions like Iterator or Future, which isn't something my type implements though.

[ChayimFriedman2]

This happens on functions that have type parameters, and in fact not just on functions. The reason is that the trait solver correctly answers "yes" to the question "whether Type<{unknown}>: NotableTrait", and that we incorrectly pass {unknown} to generic params instead of making them identity. And that I was too lazy to report it when finding it more than a month ago, so thank you for doing that 😅

[AdrienSwaap]

Up, this is particularly annoying to have such a useless piece of information, and even more when it's shown before the function's actual documentation

[ChayimFriedman2]

@AdrienSwaap This should be fixed by rust-lang/rust#150453.