[
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      "name": "either",
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      "features": ["default", "use_std"],
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      "codegens": [],
      "static_libs": [],
      "shared_libs": [],
      "edition": "2018",
      "package_dir": ".../external/rust/crates/either",
      "main_src": "src/lib.rs",
      "license": "MIT OR Apache-2.0",
      "license_file": null,
      "empty_test": false
    },
    {
      "name": "either",
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      "features": ["default", "use_std"],
      "cfgs": [],
      "externs": [
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          "raw_name": "serde_json",
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        }
      ],
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    }
  ]
]