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coc-rust-analyzer doesn't display "related information" diagnostics ("value moved here" etc)

See original GitHub issue

coc-rust-analyzer doesn’t display the “related information” part of diagnostic messages, even though it is reported by the rust-analyzer language server:

Example program: (playground)

fn main() {
    let x = "hello world!\n".to_string();
    //  - move occurs because `x` has type `std::string::String`, which does not implement the `Copy` trait
    // (this diagnostic is missing)

    take(x);
    //   - value moved here
    // (this diagnostic is missing)

    println!("{}", x);
    //             ^ value borrowed here after move
    // (this diagnostic is displayed)
}

fn take(s: String) {
    println!("{}", s);
}

Diagnostic information from trace:

[Trace - 18:21:52] Received notification 'textDocument/publishDiagnostics'.
Params: {
    "diagnostics": [
        {
            "code": "E0382",
            "message": "borrow of moved value: `x`\nvalue borrowed here after move",
            "range": {
                "end": {
                    "character": 20,
                    "line": 5
                },
                "start": {
                    "character": 19,
                    "line": 5
                }
            },
            "relatedInformation": [
                {
                    "location": {
                        "range": {
                            "end": {
                                "character": 10,
                                "line": 3
                            },
                            "start": {
                                "character": 9,
                                "line": 3
                            }
                        },
                        "uri": "file:///home/yrlf/Programming/rs/misc/foo/src/main.rs"
                    },
                    "message": "value moved here"
                },
                {
                    "location": {
                        "range": {
                            "end": {
                                "character": 9,
                                "line": 1
                            },
                            "start": {
                                "character": 8,
                                "line": 1
                            }
                        },
                        "uri": "file:///home/yrlf/Programming/rs/misc/foo/src/main.rs"
                    },
                    "message": "move occurs because `x` has type `std::string::String`, which does not implement the `Copy` trait"
                }
            ],
            "severity": 1,
            "source": "rustc"
        }
    ],
    "uri": "file:///home/yrlf/Programming/rs/misc/foo/src/main.rs"
}

Current display in CoC with coc-rust-analyzer: view in editor