1.95 beta regression: "no method named `accept` found for struct..."

[theemathas]

Regression found by the 1.95 beta crater run.

[INFO] [stdout] error[E0599]: no method named `accept` found for struct `Server<{closure@src/main.rs:31:77: 31:91}>` in the current scope
[INFO] [stdout]   --> src/main.rs:37:16
[INFO] [stdout]    |
[INFO] [stdout] 37 |         server.accept(&config.server.address)?;
[INFO] [stdout]    |                ^^^^^^ method not found in `Server<{closure@src/main.rs:31:77: 31:91}>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: the method was found for
[INFO] [stdout]            - `Server<T, STACK_SIZE>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.

https://crater-reports.s3.amazonaws.com/beta-1.95-3/1.95.0-beta.3/reg/url-redirect-0.3.0/log.txt

[theemathas]

Bisection results:

searched toolchains 503745e9170b40841611aaaa634641edffd00b29 through 67aec36df76a7b67b71a8ee47684467e16f1847e


********************************************************************************
Regression in 75b9d89c68a4a92758349272aa4e35a8eb7a6708
********************************************************************************

Attempting to search unrolled perf builds
ERROR: couldn't find perf build comment

Regressed in #151380. cc @ShoyuVanilla @lcnr

[theemathas]

Minimized reproducer:

#[expect(dead_code)]
// Must be invariant
pub struct Server<T>(*mut T);
impl<T> Server<T>
where
    // Must be higher-ranked
    T: Fn(&mut i32),
{
    fn new(_: T) -> Self {
        todo!()
    }
    fn accept(self) {
        todo!()
    }
}

fn main() {
    // Must have a type annotation
    let server: Server<_> = Server::new(|_| ());
    server.accept();
}

Error on beta:

error[E0599]: no method named `accept` found for struct `Server<{closure@src/main.rs:19:41: 19:44}>` in the current scope
  --> src/main.rs:20:12
   |
 3 | pub struct Server<T>(*mut T);
   | -------------------- method `accept` not found for this struct
...
20 |     server.accept();
   |            ^^^^^^ method not found in `Server<{closure@src/main.rs:19:41: 19:44}>`
   |
   = note: the method was found for
           - `Server<T>`

For more information about this error, try `rustc --explain E0599`.