ui_test 0.30.4

A test framework for testing rustc diagnostics output
Documentation
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            "pattern": [
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                    "severity": 1,
                    "message": 4,
                    "code": 3
                },
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                    "column": 3
                }
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                    "line": 3,
                    "column": 4
                }
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            "owner": "cargo-fmt",
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}