{
  "id": "rust/e0053-parameters-differ-in-bounds",
  "signature": "error[E0053]: parameters differ in bounds: `T: Trait` vs `T: OtherTrait`",
  "signature_zh": "错误[E0053]: 参数在约束上不同: `T: Trait` vs `T: OtherTrait`",
  "regex": "error\\[E0053\\]: parameters differ in bounds: `[^`]+: [^`]+` vs `[^`]+: [^`]+`",
  "domain": "rust",
  "category": "type_error",
  "subcategory": null,
  "root_cause": "A trait method declaration and its implementation have different trait bounds on the same generic parameter.",
  "root_cause_type": "generic",
  "root_cause_zh": "trait 方法声明与其实现中同一泛型参数具有不同的 trait 约束。",
  "versions": [
    {
      "version": "rustc 1.70.0",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    },
    {
      "version": "rustc 1.75.0",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    },
    {
      "version": "rustc 1.80.0",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    }
  ],
  "os_specific": {},
  "dead_ends": [
    {
      "action": "",
      "why_fails": "The implementation might use methods from the removed trait bound, causing unresolved method errors.",
      "fail_rate": 0.7,
      "condition": "",
      "sources": []
    },
    {
      "action": "",
      "why_fails": "All existing implementors of the trait would need to satisfy the new bound, potentially breaking code.",
      "fail_rate": 0.8,
      "condition": "",
      "sources": []
    },
    {
      "action": "",
      "why_fails": "The error is about bounds, not parameter names. Renaming doesn't change the bound mismatch.",
      "fail_rate": 0.9,
      "condition": "",
      "sources": []
    }
  ],
  "workarounds": [
    {
      "action": "Match the trait bounds exactly between the trait definition and the impl. Example: In trait: `fn method<T: Trait>(x: T);` In impl: `fn method<T: Trait>(x: T) {}`",
      "success_rate": 0.95,
      "how": "Match the trait bounds exactly between the trait definition and the impl. Example: In trait: `fn method<T: Trait>(x: T);` In impl: `fn method<T: Trait>(x: T) {}`",
      "condition": "",
      "sources": []
    },
    {
      "action": "If the implementation needs additional bounds, add them to the trait definition as well, or use a separate method. Example: Add `where T: Clone + Debug` to both.",
      "success_rate": 0.85,
      "how": "If the implementation needs additional bounds, add them to the trait definition as well, or use a separate method. Example: Add `where T: Clone + Debug` to both.",
      "condition": "",
      "sources": []
    },
    {
      "action": "Remove unnecessary bounds from the implementation if the method body doesn't require them. Example: Remove `T: OtherTrait` from impl.",
      "success_rate": 0.9,
      "how": "Remove unnecessary bounds from the implementation if the method body doesn't require them. Example: Remove `T: OtherTrait` from impl.",
      "condition": "",
      "sources": []
    }
  ],
  "workarounds_zh": [
    "Match the trait bounds exactly between the trait definition and the impl. Example: In trait: `fn method<T: Trait>(x: T);` In impl: `fn method<T: Trait>(x: T) {}`",
    "If the implementation needs additional bounds, add them to the trait definition as well, or use a separate method. Example: Add `where T: Clone + Debug` to both.",
    "Remove unnecessary bounds from the implementation if the method body doesn't require them. Example: Remove `T: OtherTrait` from impl."
  ],
  "transition_graph": {
    "leads_to": [],
    "preceded_by": [],
    "frequently_confused_with": []
  },
  "official_doc_url": "https://doc.rust-lang.org/error_codes/E0053.html",
  "official_doc_section": null,
  "error_code": "E0053",
  "verification_tier": "ai_generated",
  "confidence": 0.83,
  "fix_success_rate": 0.88,
  "resolvable": "true",
  "first_seen": "2023-11-08",
  "last_confirmed": "2024-06-01",
  "last_updated": "2024-06-01",
  "evidence_count": 1,
  "tags": [],
  "locale": "en",
  "aliases": []
}