{
    "message": "this argument is passed by reference, but would be more efficient if passed by value",
    "code": {
        "code": "clippy::trivially_copy_pass_by_ref",
        "explanation": null
    },
    "level": "warning",
    "spans": [
        {
            "file_name": "compiler/mir/tagset.rs",
            "byte_start": 941,
            "byte_end": 946,
            "line_start": 42,
            "line_end": 42,
            "column_start": 24,
            "column_end": 29,
            "is_primary": true,
            "text": [
                {
                    "text": "    pub fn is_disjoint(&self, other: Self) -> bool {",
                    "highlight_start": 24,
                    "highlight_end": 29
                }
            ],
            "label": null,
            "suggested_replacement": null,
            "suggestion_applicability": null,
            "expansion": null
        }
    ],
    "children": [
        {
            "message": "lint level defined here",
            "code": null,
            "level": "note",
            "spans": [
                {
                    "file_name": "compiler/lib.rs",
                    "byte_start": 8,
                    "byte_end": 19,
                    "line_start": 1,
                    "line_end": 1,
                    "column_start": 9,
                    "column_end": 20,
                    "is_primary": true,
                    "text": [
                        {
                            "text": "#![warn(clippy::all)]",
                            "highlight_start": 9,
                            "highlight_end": 20
                        }
                    ],
                    "label": null,
                    "suggested_replacement": null,
                    "suggestion_applicability": null,
                    "expansion": null
                }
            ],
            "children": [],
            "rendered": null
        },
        {
            "message": "#[warn(clippy::trivially_copy_pass_by_ref)] implied by #[warn(clippy::all)]",
            "code": null,
            "level": "note",
            "spans": [],
            "children": [],
            "rendered": null
        },
        {
            "message": "for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref",
            "code": null,
            "level": "help",
            "spans": [],
            "children": [],
            "rendered": null
        },
        {
            "message": "consider passing by value instead",
            "code": null,
            "level": "help",
            "spans": [
                {
                    "file_name": "compiler/mir/tagset.rs",
                    "byte_start": 941,
                    "byte_end": 946,
                    "line_start": 42,
                    "line_end": 42,
                    "column_start": 24,
                    "column_end": 29,
                    "is_primary": true,
                    "text": [
                        {
                            "text": "    pub fn is_disjoint(&self, other: Self) -> bool {",
                            "highlight_start": 24,
                            "highlight_end": 29
                        }
                    ],
                    "label": null,
                    "suggested_replacement": "self",
                    "suggestion_applicability": "Unspecified",
                    "expansion": null
                }
            ],
            "children": [],
            "rendered": null
        }
    ],
    "rendered": "warning: this argument is passed by reference, but would be more efficient if passed by value\n  --> compiler/mir/tagset.rs:42:24\n   |\n42 |     pub fn is_disjoint(&self, other: Self) -> bool {\n   |                        ^^^^^ help: consider passing by value instead: `self`\n   |\nnote: lint level defined here\n  --> compiler/lib.rs:1:9\n   |\n1  | #![warn(clippy::all)]\n   |         ^^^^^^^^^^^\n   = note: #[warn(clippy::trivially_copy_pass_by_ref)] implied by #[warn(clippy::all)]\n   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref\n\n"
}