Rust Code Blocks in Documentation Are Not Well Highlighted

[GreenYun]

rust-analyzer version: 0.4.1330-standalone (fb0db2a 2022-12-23)

rustc version: rustc 1.68.0-nightly (rust-lang/rust@af3e06f1b 2022-12-23)

relevant settings: (No special settings)

The problems are described by the following image:

Compared to the normal code rendered: