regression: `pointee` is ambiguous

[BoxyUwU]

• https://crater-reports.s3.amazonaws.com/beta-1.81-2/beta-2024-07-26/reg/ptr_meta-0.3.0-alpha.2/log.txt
• https://crater-reports.s3.amazonaws.com/beta-1.81-2/beta-2024-07-26/reg/rancor-0.1.0-alpha.9/log.txt

[INFO] [stdout] error[E0659]: `pointee` is ambiguous
[INFO] [stdout]    --> src/lib.rs:546:11
[INFO] [stdout]     |
[INFO] [stdout] 546 |         #[pointee]
[INFO] [stdout]     |           ^^^^^^^ ambiguous name
[INFO] [stdout]     |
[INFO] [stdout]     = note: ambiguous because of a name conflict with a builtin attribute
[INFO] [stdout]     = note: `pointee` could refer to a built-in attribute

#125575 cc @davidtwco @dingxiangfei2009

[lqd]

cc @dingxiangfei2009 @Darksonn

[Darksonn]

@rustbot label F-derive_smart_pointer

[Darksonn]

Thread on zulip: https://rust-lang.zulipchat.com/#narrow/stream/425075-rust-for-linux/topic/regression.3A.20pointee.20is.20ambiguous/near/459535999

[dingxiangfei2009]

@rustbot claim

[apiraino]

WG-prioritization assigning priority (Zulip discussion).

@rustbot label -I-prioritize +P-high