Invalid RA diagnostic error: expected 2 arguments, found 1

[mckenfra]

rust-analyzer version: 0.3.2011-standalone (2fd803cc1 2024-06-22)
rustc 1.78.0 (9b00956e5 2024-04-29)
VSCode, Version 0.3.2011, Server Version 0.3.2011-standalone (2fd803cc1 2024-06-22)

While working on a rust project in VSCode, I noticed that RA was reporting errors with perfectly valid code. After stripping back all surrounding code, I have come up with the below minimal example that reproduces the error.

The error message I see in VSCode is: expected 2 arguments, found 1 rust-analyzer E0107

This occurs on the line vec.push("hello");

#![allow(dead_code)]
use core::ops::Deref;

trait Trait1 {
    type Assoc: Deref<Target = String>;
}
trait Trait2: Trait1 {
}
trait Trait3 {
    type T1: Trait1;
    type T2: Trait2;
    fn push(&self, x: bool, y: bool);
}

fn problem_method<T: Trait3>() {
    let mut vec = Vec::new();
    vec.push("hello"); // Rustc ok, RA errors (mismatched args)
}