ambiguous associated item 'Error' since 0.23

[brmmm3]

Bug Description

Since 0.23 I get the following error message when I define an enum which contains the name 'Error':

ambiguous associated item
this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
for more information, see issue #57644 <https://github.com/rust-lang/rust/issues/57644>
`#[deny(ambiguous_associated_items)]` on by default

The enum is defined as follows:

#[pyclass(eq, eq_int)]
#[derive(Debug, Clone, PartialEq, Eq)]
pub enum Level2Sym {
    NotSet = 0,
    Debug = 10,
    Info = 20,
    Warning = 30,
    Error = 40,
    Critical = 50,
    Exception = 60,
    NoLog = 100,
}

Steps to Reproduce

Just changed the version from 0.22 to 0.23 and this error message is shown.

Backtrace

No response

Your operating system and version

Ubuntu 24.04.1 LTS

Your Python version (python --version)

Python 3.12.7

Your Rust version (rustc --version)

rustc 1.84.0-nightly (5ec7d6eee 2024-11-17)

Your PyO3 version

0.23.1

How did you install python? Did you use a virtualenv?

pyenv

Additional Info

No response

[LilyFoote]

I can replicate this and I've bisected it to 0a185cd. I can confirm that any of the associated types Error, Output and Target for the IntoPyObject trait lead to this error.