{"id":440772,"date":"2024-02-05T09:17:07","date_gmt":"2024-02-05T08:17:07","guid":{"rendered":"https:\/\/blog.jetbrains.com\/rust\/2023\/12\/20\/the-most-common-rust-compiler-errors-as-encountered-in-rustrover-part-2\/"},"modified":"2024-02-06T03:44:38","modified_gmt":"2024-02-06T02:44:38","slug":"the-most-common-rust-compiler-errors-as-encountered-in-rustrover-part-2","status":"publish","type":"rust","link":"https:\/\/blog.jetbrains.com\/ja\/rust\/2024\/02\/05\/the-most-common-rust-compiler-errors-as-encountered-in-rustrover-part-2\/","title":{"rendered":"RustRover \u3067\u906d\u9047\u3059\u308b\u6700\u3082\u4e00\u822c\u7684\u306a Rust \u30b3\u30f3\u30d1\u30a4\u30e9\u30fc\u30a8\u30e9\u30fc: \u30d1\u30fc\u30c8 2"},"content":{"rendered":"<p><a href=\"https:\/\/blog.jetbrains.com\/ja\/rust\/2024\/01\/16\/the-most-common-rust-compiler-errors-as-encountered-in-rustrover-part-1\/\">\u3053\u306e\u30d6\u30ed\u30b0\u9023\u8f09\u8a18\u4e8b\u306e\u30d1\u30fc\u30c8 1<\/a> \u3067\u306f RustRover \u306e\u4f7f\u7528\u72b6\u6cc1\u30c7\u30fc\u30bf\u306b\u57fa\u3065\u3044\u3066\u6700\u3082\u4e00\u822c\u7684\u306a Rust \u30b3\u30f3\u30d1\u30a4\u30e9\u30fc\u30a8\u30e9\u30fc\u306e\u4e0a\u4f4d 10 \u4ef6\u306b\u76ee\u3092\u5411\u3051\u3001\u305d\u306e\u4e2d\u306e\u534a\u5206\u306e\u30a8\u30e9\u30fc\u306b\u3064\u3044\u3066\u53d6\u308a\u4e0a\u3052\u307e\u3057\u305f\u3002 \u3053\u306e\u30d1\u30fc\u30c8\u3067\u306f\u6700\u3082\u983b\u7e41\u306b\u767a\u751f\u3059\u308b\u30a8\u30e9\u30fc\u306e\u3046\u3061\u4e0a\u4f4d 5 \u4ef6\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u8abf\u67fb\u3057\u3001\u958b\u767a\u8005\u3068\u30b3\u30f3\u30d1\u30a4\u30e9\u30fc\u3068\u306e\u300c\u5bfe\u7acb\u300d\u3092\u6700\u3082\u5f15\u304d\u8d77\u3053\u3057\u304c\u3061\u306a Rust \u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e\u306e\u5074\u9762\u306b\u3064\u3044\u3066\u3088\u308a\u4e00\u822c\u7684\u306a\u8003\u5bdf\u3092\u884c\u3044\u307e\u3059\u3002<\/p>\n<h2 class=\"wp-block-heading\">\u4e00\u822c\u7684\u306a\u30a8\u30e9\u30fc\u7b2c 5 \u4f4d: E0433\uff08<em>An undeclared crate, module, or type was used<\/em>; \u672a\u5ba3\u8a00\u306e\u30af\u30ec\u30fc\u30c8\u3001\u30e2\u30b8\u30e5\u30fc\u30eb\u3001\u307e\u305f\u306f\u578b\u304c\u4f7f\u7528\u3055\u308c\u307e\u3057\u305f\uff09<\/h2>\n<p>\u3053\u306e\u30a8\u30e9\u30fc\u306f\u524d\u56de\u306e\u30d1\u30fc\u30c8\u3067\u8aac\u660e\u3057\u305f E0432\uff08\u30a4\u30f3\u30dd\u30fc\u30c8\u304c\u89e3\u6c7a\u3055\u308c\u307e\u305b\u3093\u3067\u3057\u305f\uff09\u3068\u540c\u69d8\u306e\u3082\u306e\u3067\u3059\u3002 \u552f\u4e00\u306e\u9055\u3044\u306f\u3001\u554f\u984c\u306e\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u304c\u3042\u308b\u30d1\u30b9\u304c <code>use<\/code> \u7bc0\u3092\u4f7f\u7528\u305b\u305a\u306b\u76f4\u63a5\u540d\u524d\u306b\u4f7f\u7528\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3067\u3059\u3002 RustRover \u30e6\u30fc\u30b6\u30fc\u306e 17.5% \u304c\u3053\u306e\u30a8\u30e9\u30fc\u306b\u906d\u9047\u3057\u3066\u3044\u307e\u3059\u3002 \u305f\u3068\u3048\u3070\u3001\u4ee5\u4e0b\u306e\u30b3\u30fc\u30c9\u3067\u306f\u30b3\u30f3\u30d1\u30a4\u30e9\u30fc\u306f\u30e6\u30fc\u30b6\u30fc\u306e\u610f\u56f3\uff08\u30af\u30ec\u30fc\u30c8\u307e\u305f\u306f\u30e2\u30b8\u30e5\u30fc\u30eb\uff09\u3092\u7406\u89e3\u3067\u304d\u305a\u306b\u30a8\u30e9\u30fc\u3092\u5410\u3044\u3066\u3044\u307e\u3059\u3002<\/p>\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-421519\" src=\"https:\/\/blog.jetbrains.com\/wp-content\/uploads\/2023\/12\/image-25.png\" alt=\"\" width=\"1600\" height=\"900\" \/><\/figure>\n<p>Rust \u30b3\u30f3\u30d1\u30a4\u30e9\u30fc\u304c\u5e83\u304f\u79f0\u8cdb\u3055\u308c\u3066\u3044\u308b\u306e\u306f\u3001\u3053\u306e\u3088\u3046\u306a\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u51fa\u529b\u3092\u884c\u3046\u305f\u3081\u3067\u3059\u3002 \u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u8aad\u307e\u306a\u304f\u3066\u3082\u4fee\u6b63\u3059\u3079\u304d\u5185\u5bb9\u304c\u660e\u78ba\u306b\u5206\u304b\u308b\u306e\u3067\u3059\u3002\u3053\u3053\u3067\u306f\u540d\u524d\u3092\u691c\u8a3c\u3059\u308b\u304b\u3001\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u5fc5\u9808\u306e\u4f9d\u5b58\u95a2\u4fc2\u3092 <kbd>Cargo.toml<\/kbd> \u306b\u8ffd\u52a0\u3059\u308b\u304b\u3001\u9069\u5207\u306a\u30a4\u30f3\u30dd\u30fc\u30c8\u3092\u5c0e\u5165\u3059\u308b\u304b\u3067\u3059\u3002<\/p>\n<p>RustRover \u3082\u5f79\u7acb\u3061\u307e\u3059\u3002 \u30a4\u30f3\u30dd\u30fc\u30c8\u3055\u308c\u308b\u540d\u524d\u306e\u9078\u629e\u80a2\u3092\u63d0\u4f9b\u3057\u3066\u304f\u308c\u307e\u3059\u3002<\/p>\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-421530\" src=\"https:\/\/blog.jetbrains.com\/wp-content\/uploads\/2023\/12\/image-26.png\" alt=\"\" width=\"1465\" height=\"411\" \/><\/figure>\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-421541\" src=\"https:\/\/blog.jetbrains.com\/wp-content\/uploads\/2023\/12\/image-27.png\" alt=\"\" width=\"1477\" height=\"474\" \/><\/figure>\n<p>\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u3057\u306a\u304c\u3089\u30b3\u30fc\u30c9\u88dc\u5b8c\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u3053\u306e\u30a8\u30e9\u30fc\u3092\u307e\u3068\u3081\u3066\u56de\u907f\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<h2 class=\"wp-block-heading\">\u4e00\u822c\u7684\u306a\u30a8\u30e9\u30fc\u7b2c 4 \u4f4d: E0425\uff08<em>An unresolved name was used<\/em>; \u672a\u89e3\u6c7a\u306e\u540d\u524d\u304c\u4f7f\u7528\u3055\u308c\u307e\u3057\u305f\uff09<\/h2>\n<p>\u3055\u3089\u306b\u5225\u306e\u300c\u672a\u89e3\u6c7a\u300d\u30a8\u30e9\u30fc\u3092\u4f34\u3046\u4e0d\u660e\u306a\u73fe\u8c61\u3092\u8a73\u3057\u304f\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002 RustRover \u30e6\u30fc\u30b6\u30fc\u306e 20.5% \u304c\u69cb\u6587\u7684\u306b\u30af\u30ec\u30fc\u30c8\u307e\u305f\u306f\u30e2\u30b8\u30e5\u30fc\u30eb\u540d\u3067\u306a\u3044\u672a\u89e3\u6c7a\u306e\u540d\u524d\u304c\u4f7f\u7528\u3055\u308c\u3066\u3044\u308b\u3068\u3044\u3046\u72b6\u6cc1\u306b\u906d\u9047\u3057\u3066\u3044\u307e\u3059\u3002 \u3053\u306e\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u305f\u5834\u5408\u3001\u4ee5\u4e0b\u306e\u30dd\u30c3\u30d7\u30a2\u30c3\u30d7\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002<\/p>\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-421552\" src=\"https:\/\/blog.jetbrains.com\/wp-content\/uploads\/2023\/12\/image-28.png\" alt=\"\" width=\"1600\" height=\"237\" \/><\/figure>\n<p>\u5f53\u7136\u3067\u306f\u3042\u308a\u307e\u3059\u304c\u3001\u5b9f\u969b\u306e\u767a\u751f\u6642\u306b\u306f\u4e0a\u306e\u753b\u50cf\u307b\u3069\u5206\u304b\u308a\u3084\u3059\u304f\u306f\u306a\u3044\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u6b8b\u5ff5\u306a\u304c\u3089\u3001\u8f1d\u304b\u3057\u3044 Rust \u30b3\u30f3\u30d1\u30a4\u30e9\u30fc\u3067\u3042\u3063\u3066\u3082\u3053\u306e\u30a8\u30e9\u30fc\u3092\u89e3\u6c7a\u3067\u304d\u307e\u305b\u3093\u3002 \u3053\u3053\u3067\u306f\u540d\u524d\u3092\u5909\u66f4\u3059\u308b\u3001\u5b9a\u7fa9\u3092\u6307\u5b9a\u3059\u308b\u3001\u9069\u5207\u306a\u30a4\u30f3\u30dd\u30fc\u30c8\u3092\u5c0e\u5165\u3059\u308b\u3068\u3044\u3063\u305f\u3044\u304f\u3064\u304b\u306e\u5bfe\u51e6\u65b9\u6cd5\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h2 class=\"wp-block-heading\">\u4e00\u822c\u7684\u306a\u30a8\u30e9\u30fc\u7b2c 3 \u4f4d: E0599\uff08<em>A method is used on a type which doesn\u2019t implement it<\/em>; \u30e1\u30bd\u30c3\u30c9\u304c\u305d\u306e\u30e1\u30bd\u30c3\u30c9\u3092\u5b9f\u88c5\u3057\u3066\u3044\u306a\u3044\u578b\u306b\u5bfe\u3057\u3066\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3059\uff09<\/h2>\n<p>\u30cd\u30bf\u30d0\u30ec\u306b\u306a\u3063\u3066\u3057\u307e\u3044\u307e\u3059\u304c\u3001\u4e0a\u4f4d 3 \u4f4d\u306e\u30a8\u30e9\u30fc\u306f\u3059\u3079\u3066\u578b\u30c1\u30a7\u30c3\u30af\u30a8\u30e9\u30fc\u3068\u306a\u3063\u3066\u304a\u308a\u3001 \u3059\u3079\u3066\u8aa4\u3063\u305f\u578b\u306e\u4f7f\u7528\u306b\u95a2\u3059\u308b\u3082\u306e\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002 \u3053\u3053\u3067\u53d6\u308a\u4e0a\u3052\u3066\u3044\u308b\u30a8\u30e9\u30fc\u306f\u3001RustRover \u30e6\u30fc\u30b6\u30fc\u306e 27.5% \u304c\u3042\u308b\u30e1\u30bd\u30c3\u30c9\u3092\u305d\u308c\u3092\u5b9f\u88c5\u3057\u3066\u3044\u306a\u3044\u578b\u306e\u5024\u306b\u5bfe\u3057\u3066\u547c\u3073\u51fa\u305d\u3046\u3068\u3057\u305f\u969b\u306b\u906d\u9047\u3057\u3066\u3044\u308b\u3082\u306e\u3067\u3059\u3002 \u4ee5\u4e0b\u306e\u4f8b\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"rust\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">fn main() {\n\u00a0\u00a0\u00a0let numbers: Vec = vec![4, 11, 15, 12];\n\u00a0\u00a0\u00a0let sum: usize = numbers.sum();\n\u00a0\u00a0\u00a0println!(\"Answer = {sum}\");\n}<\/pre>\n<p><code>Vec<\/code> \u306b <code>sum<\/code> \u30e1\u30bd\u30c3\u30c9\u304c\u306a\u3044\u3053\u3068\u3092\u9664\u3051\u3070\u3001\u6b63\u3057\u3044\u3088\u3046\u306b\u898b\u3048\u307e\u3059\u3002 \u5177\u4f53\u7684\u306b\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"raw\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">error[E0599]: `Vec` is not an iterator<\/pre>\n<p>\u3053\u306e\u5834\u5408\u306f <code>iter<\/code> \u30e1\u30bd\u30c3\u30c9\u3092\u5148\u306b\u547c\u3073\u51fa\u3057\u305f\u5f8c\u306b\u7d50\u679c\u306e\u30a4\u30c6\u30ec\u30fc\u30bf\u30fc\u306b <code>sum<\/code> \u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u4fee\u6b63\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u3061\u306a\u307f\u306b\u3001RustRover \u306b\u306f\u3053\u306e\u3088\u3046\u306a\u30a8\u30e9\u30fc\u3092\u56de\u907f\u3059\u308b\u6a5f\u80fd\u304c\u3042\u308a\u307e\u3059\u3002 \u300c<em>\u30c1\u30a7\u30fc\u30f3\u88dc\u5b8c<\/em>\u300d\u3068\u547c\u3070\u308c\u308b\u6a5f\u80fd\u3067\u3059\u3002 \u3053\u306e\u30e1\u30ea\u30c3\u30c8\u3092\u5b9f\u969b\u306b\u78ba\u8a8d\u3059\u308b\u305f\u3081\u3001\u4ee5\u4e0b\u306e\u4f8b\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-421563\" src=\"https:\/\/blog.jetbrains.com\/wp-content\/uploads\/2023\/12\/image-29.png\" alt=\"\" width=\"1600\" height=\"422\" \/><\/figure>\n<p>\u88dc\u5b8c\u5019\u88dc\u304c\u9078\u629e\u3055\u308c\u308b\u3068\u3001<code>iter<\/code> \u30e1\u30bd\u30c3\u30c9\u3068 <code>sum<\/code> \u30e1\u30bd\u30c3\u30c9\u306e\u4e21\u65b9\u304c\u547c\u3073\u51fa\u3057\u30c1\u30a7\u30fc\u30f3\u306b\u8ffd\u52a0\u3055\u308c\u3001\u5373\u6642\u306b\u30b3\u30fc\u30c9\u304c\u4fee\u6b63\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>\u4e00\u822c\u7684\u306b\u306f\u30b3\u30fc\u30c9\u88dc\u5b8c\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067 E0599 \u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u767a\u751f\u3092\u56de\u907f\u3067\u304d\u307e\u3059\u3002 \u5fc5\u8981\u306a\u30e1\u30bd\u30c3\u30c9\u547c\u3073\u51fa\u3057\u306e\u5019\u88dc\u304c\u8868\u793a\u3055\u308c\u306a\u3044\u5834\u5408\u3001\u5b9f\u969b\u306b\u306f\u4e0d\u6b63\u306a\u547c\u3073\u51fa\u3057\u5148\u306e\u578b\u304c\u554f\u984c\u3067\u3042\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u3082\u3046 1 \u3064\u304a\u4f1d\u3048\u3057\u3066\u304a\u304f\u3079\u304d\u3053\u306e\u30a8\u30e9\u30fc\u306e\u5074\u9762\u304c\u3042\u308a\u307e\u3059\u3002\u30e6\u30fc\u30b6\u30fc\u306f\u591a\u304f\u306e\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u3067\u81ea\u8eab\u306e\u578b\u5ba3\u8a00\u3092\u5236\u5fa1\u3067\u304d\u308b\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002 \u305f\u3068\u3048\u3070\u3001\u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3073\u51fa\u3057\u305f\u5f8c\u306b <strong>Alt-Enter<\/strong>\uff08<strong>\u2325Option<\/strong>\u2013<strong>Return<\/strong>\uff09\u3092\u62bc\u3057\u3066\u63d0\u6848\u3055\u308c\u308b\u30a2\u30af\u30b7\u30e7\u30f3\u3092\u5b9f\u884c\u3057\u3001RustRover \u306b\u305d\u306e\u30e1\u30bd\u30c3\u30c9\u5b9f\u88c5\u306e\u30b9\u30ad\u30e3\u30d5\u30a9\u30fc\u30eb\u30c9\u3092\u6c42\u3081\u308b\u65b9\u6cd5\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-421574\" src=\"https:\/\/blog.jetbrains.com\/wp-content\/uploads\/2023\/12\/image-30.png\" alt=\"\" width=\"1600\" height=\"574\" \/><\/figure>\n<p>\u3053\u306e\u30a2\u30af\u30b7\u30e7\u30f3\u306e\u7d50\u679c\u3001RustRover \u304c\u578b\u306b\u95a2\u3059\u308b\u3059\u3079\u3066\u306e\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u60c5\u5831\u3092\u8003\u616e\u3057\u3066\u30e1\u30bd\u30c3\u30c9\u5b9f\u88c5\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u3092\u751f\u6210\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"rust\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">impl Info {\n\u00a0\u00a0\u00a0pub(crate) fn summary(&amp;self) -&gt; String {\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0todo!()\n\u00a0\u00a0\u00a0}\n}<\/pre>\n<p>\u3053\u306e\u30b3\u30fc\u30c9\u3092\u5b9f\u884c\u3059\u308b\u3068\u30e9\u30f3\u30bf\u30a4\u30e0\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u307e\u3059\u304c\u3001\u5c11\u306a\u304f\u3068\u3082\u30b3\u30f3\u30d1\u30a4\u30e9\u30fc\u304c\u30a8\u30e9\u30fc\u3092\u5410\u304f\u3053\u3068\u306f\u306a\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<h2 class=\"wp-block-heading\">\u4e00\u822c\u7684\u306a\u30a8\u30e9\u30fc\u7b2c 2 \u4f4d: E0308\uff08<em>Expected type did not match the received type<\/em>; \u5fc5\u8981\u306a\u578b\u3068\u53d7\u3051\u53d6\u3063\u305f\u578b\u304c\u4e00\u81f4\u3057\u307e\u305b\u3093\u3067\u3057\u305f\uff09<\/h2>\n<p>\u578b <code>B<\/code> \u306e\u5024\u304c\u5fc5\u8981\u306a\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u3067\u578b <code>A<\/code> \u306e\u5f0f\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u72b6\u6cc1\u3092\u60f3\u50cf\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002 \u3053\u3053\u3067\u8a00\u3046\u300c\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u300d\u306f\u3001\u547c\u3073\u51fa\u3057\u30b5\u30a4\u30c8\u3001\u5909\u6570\u5ba3\u8a00\u3001\u5236\u5fa1\u30d5\u30ed\u30fc\u30b9\u30c6\u30fc\u30c8\u30e1\u30f3\u30c8\/\u5f0f\u306a\u3069\u306e\u95a2\u6570\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u30fc\u3092\u6307\u3057\u307e\u3059\u3002 \u3053\u306e\u30a8\u30e9\u30fc\u306b\u5bfe\u51e6\u3057\u305f\u3053\u3068\u306e\u3042\u308b\u65b9\u306f RustRover \u30e6\u30fc\u30b6\u30fc\u306e 30% \u3068\u540c\u3058\u7d4c\u9a13\u3092\u5171\u6709\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u5834\u5408\u3001\u7406\u8ad6\u7684\u306b\u306f\u5024\u3092\u8abf\u6574\u3059\u308b\u304b\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u3092\u8abf\u6574\u3059\u308b\u304b\u306e 2 \u3064\u306e\u9078\u629e\u80a2\u304c\u3042\u308a\u307e\u3059\u3002 \u5024\u306e\u8abf\u6574\u306b\u306f\u578b\u306e\u30ad\u30e3\u30b9\u30c8\u3001\u53c2\u7167\/\u9006\u53c2\u7167\u3001\u5024\u306b\u5bfe\u3059\u308b\u5909\u63db\u30e1\u30bd\u30c3\u30c9\u306e\u547c\u3073\u51fa\u3057\u3001\u307e\u305f\u306f\u5024\u304b\u3089\u5225\u306e\u8981\u7d20\u3078\u306e\u7f6e\u63db\u304c\u4f34\u3046\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002 \u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u306e\u8abf\u6574\u306f\u5fc5\u305a\u3057\u3082\u53ef\u80fd\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u304c\u3001\u5fc5\u8981\u306a\u578b\u3092\u53d7\u3051\u53d6\u308b\u578b\u306b\u5408\u308f\u305b\u3066\u5909\u66f4\u3067\u304d\u308b\u5834\u5408\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>RustRover \u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30af\u30a4\u30c3\u30af\u30d5\u30a3\u30c3\u30af\u30b9\u3092\u63d0\u4f9b\u3059\u308b\u3053\u3068\u3067\u3001\u3069\u3061\u3089\u306e\u51e6\u7406\u306b\u3082\u5bfe\u5fdc\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-421585\" src=\"https:\/\/blog.jetbrains.com\/wp-content\/uploads\/2023\/12\/image-31.png\" alt=\"\" width=\"1600\" height=\"434\" \/><\/figure>\n<p>\u30ea\u30b9\u30c8\u5185\u306e 2 \u3064\u76ee\u306e\u5019\u88dc\u306b\u6ce8\u76ee\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u3053\u306e\u5834\u5408\u3001RustRover \u306f\u30b3\u30f3\u30d1\u30a4\u30e9\u30fc\u306b\u9069\u3057\u305f\u975e\u5e38\u306b\u9ad8\u5ea6\u306a\u5024\u306e\u5909\u63db\u3092\u63d0\u6848\u3057\u3066\u3044\u307e\u3059\u3002 \u6700\u521d\u306e\u5019\u88dc\u3092\u9069\u7528\u3057\u305f\u5834\u5408\u306f\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u3001\u3064\u307e\u308a\u306f\u95a2\u6570\u5b9a\u7fa9\u304c\u4ee3\u308f\u308a\u306b\u4fee\u6b63\u3055\u308c\u307e\u3059\u3002<\/p>\n<h2 class=\"wp-block-heading\">\u4e00\u822c\u7684\u306a\u30a8\u30e9\u30fc\u7b2c 1 \u4f4d: E0277\uff08<em>You tried to use a type which doesn\u2019t implement some trait in a place which expected that trait<\/em>; \u30c8\u30ec\u30a4\u30c8\u304c\u5fc5\u8981\u306a\u5834\u6240\u3067\u30c8\u30ec\u30a4\u30c8\u3092\u5b9f\u88c5\u3057\u306a\u3044\u578b\u3092\u4f7f\u7528\u3057\u3088\u3046\u3068\u3057\u307e\u3057\u305f\uff09<\/h2>\n<p>\u3088\u3046\u3084\u304f\u6700\u5f8c\u306e\u30a8\u30e9\u30fc\u306b\u305f\u3069\u308a\u7740\u304d\u307e\u3057\u305f\uff01 RustRover \u3067\u906d\u9047\u3059\u308b\u6700\u3082\u4e00\u822c\u7684\u306a Rust \u30b3\u30f3\u30d1\u30a4\u30e9\u30fc\u30a8\u30e9\u30fc\u306f E0277 \u3067\u3059\u3002 RustRover \u30e6\u30fc\u30b6\u30fc\u306e 32% \u304c\u3001\u3053\u306e\u578b\u3068\u30c8\u30ec\u30a4\u30c8\u306b\u95a2\u3059\u308b\u958b\u767a\u8005\u306b\u3068\u3063\u3066\u306f\u60aa\u5922\u3068\u306a\u308b\u7d4c\u9a13\u3092\u3057\u3066\u3044\u307e\u3059\u3002 <a href=\"https:\/\/doc.rust-lang.org\/error_codes\/E0277.html\" target=\"_blank\" rel=\"noopener\">\u516c\u5f0f\u306e\u8aac\u660e<\/a>\u306b\u306f\u4f8b\u306b\u3088\u3063\u3066\u5341\u5206\u306a\u4f8b\u3068\u9069\u7528\u53ef\u80fd\u306a\u4fee\u6b63\u306e\u8aac\u660e\u304c\u8a18\u8f09\u3055\u308c\u3066\u3044\u307e\u3059\u3002 \u3053\u3053\u3067\u306f\u4ee3\u308f\u308a\u306b RustRover \u306e\u52d5\u4f5c\u306b\u7126\u70b9\u3092\u5f53\u3066\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u4ee5\u4e0b\u306f\u3053\u306e\u7a2e\u306e\u30a8\u30e9\u30fc\u3092\u89e3\u6c7a\u3059\u308b RustRover \u306e\u6a5f\u80fd\u3067\u3001\u79c1\u306e\u304a\u6c17\u306b\u5165\u308a\u3067\u3059\u3002<\/p>\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-421596\" src=\"https:\/\/blog.jetbrains.com\/wp-content\/uploads\/2023\/12\/image-32.png\" alt=\"\" width=\"1600\" height=\"548\" \/><\/figure>\n<p>\u30b3\u30f3\u30d1\u30a4\u30e9\u30fc\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30a8\u30e9\u30fc\u3092\u5410\u304d\u307e\u3059\u3002<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"raw\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">error[E0277]: `Info` doesn't implement `std::fmt::Display`<\/pre>\n<p>\u3082\u3061\u308d\u3093\u3001<code>Display<\/code> \u30c8\u30ec\u30a4\u30c8\u306e\u5b9f\u88c5\u306f\u9078\u629e\u80a2\u306e 1 \u3064\u3067\u3042\u308a\u3001RustRover \u306f\u5b9f\u88c5\u3092\u559c\u3093\u3067\u30b9\u30ad\u30e3\u30d5\u30a9\u30fc\u30eb\u30c9\u3057\u3066\u304f\u308c\u307e\u3059\u3002 \u305f\u3060\u3057\u3001\u3053\u306e\u5834\u5408\u306f\u4ee5\u4e0b\u306e 2 \u3064\u306e\u30b9\u30c6\u30c3\u30d7\u3092\u540c\u6642\u306b\u4f34\u3046\u6700\u521d\u306e\u5019\u88dc\u3092\u9069\u7528\u3057\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n<ul>\n<li><code>Debug<\/code> \u30c8\u30ec\u30a4\u30c8\u306e\u5b9f\u88c5\u3092\u6d3e\u751f\u3055\u305b\u308b\u3002<\/li>\n<li>\u66f8\u5f0f\u8a2d\u5b9a\u6587\u5b57\u5217\u3092\u5909\u66f4\u3057\u3066 <code>Debug<\/code> \u30c8\u30ec\u30a4\u30c8\u306e\u66f8\u5f0f\u8a2d\u5b9a\u6a5f\u80fd\u3092\u547c\u3073\u51fa\u3059\u3002<\/li>\n<\/ul>\n<p>\u6b8b\u5ff5\u306a\u304c\u3089\u3001\u4ed6\u306e\u591a\u304f\u306e\u5834\u5408\u306b\u306f RustRover \u304c\u3053\u306e\u30a8\u30e9\u30fc\u3092\u81ea\u52d5\u7684\u306b\u691c\u51fa\u3057\u3066\u30cf\u30a4\u30e9\u30a4\u30c8\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002 \u524d\u306e\u30d1\u30fc\u30c8\u3067\u8ff0\u3079\u305f\u3088\u3046\u306b\u3001RustRover \u306e\u578b\u30c1\u30a7\u30c3\u30af\u6a5f\u80fd\u306f\u307e\u3060\u305d\u308c\u307b\u3069\u5f37\u529b\u3067\u306a\u304f\u3001\u958b\u767a\u9014\u4e2d\u3067\u3042\u308b\u305f\u3081\u3067\u3059\u3002 E0277 \u306f\u6700\u3082\u4e00\u822c\u7684\u306b\u767a\u751f\u3059\u308b\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u3068\u3057\u3066\u78ba\u5b9f\u306b\u6ce8\u76ee\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2 class=\"wp-block-heading\">Rust \u30a8\u30e9\u30fc\u306b\u3064\u3044\u3066\u306e\u4e00\u822c\u7684\u306a\u8003\u5bdf<\/h2>\n<p>\u3088\u308a\u5927\u304d\u306a\u8996\u70b9\u304b\u3089\u8003\u5bdf\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002 \u5f0a\u793e\u306f\u5148\u9031\u3001Rust \u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e\u306e\u3069\u306e\u5074\u9762\u304c\u30b3\u30fc\u30c9\u30a8\u30e9\u30fc\u306e\u4e3b\u306a\u767a\u751f\u6e90\u3067\u3042\u308b\u304b\u306b\u3064\u3044\u3066 X\uff08\u65e7 Twitter\uff09\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u306b<a href=\"https:\/\/x.com\/rustrover\/status\/1735315851841040657\" target=\"_blank\" rel=\"noopener\">\u5c0b\u306d\u307e\u3057\u305f<\/a>\u3002 \u4ee5\u4e0b\u306e\u3088\u3046\u306a\u56de\u7b54\u304c\u5f97\u3089\u308c\u307e\u3057\u305f\u3002<\/p>\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-421890\" src=\"https:\/\/blog.jetbrains.com\/wp-content\/uploads\/2023\/12\/Screenshot-2023-12-20-at-17.09.02.png\" alt=\"\" width=\"1168\" height=\"381\" \/><\/figure>\n<p>\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u306e\u56de\u7b54\u3068\u5f0a\u793e\u306e\u30c7\u30fc\u30bf\u304b\u3089\u8aad\u307f\u53d6\u308c\u308b\u5185\u5bb9\u3092\u6bd4\u8f03\u3059\u308b\u305f\u3081\u3001\u6700\u3082\u4e00\u822c\u7684\u306a Rust \u30b3\u30f3\u30d1\u30a4\u30e9\u30fc\u30a8\u30e9\u30fc\u306e\u4e0a\u4f4d 25 \u4ef6\u3092\u78ba\u8a8d\u3057\u3001\u3053\u308c\u3089\u3092\u5927\u307e\u304b\u306b 5 \u3064\u306e\u30ab\u30c6\u30b4\u30ea\u306b\u5206\u985e\u3057\u307e\u3057\u305f\u3002<\/p>\n<ul>\n<li>Types and traits\uff08\u578b\u3068\u30c8\u30ec\u30a4\u30c8\uff09<\/li>\n<li>Ownership and lifetimes\uff08\u6240\u6709\u6a29\u3068\u30e9\u30a4\u30d5\u30bf\u30a4\u30e0\uff09<\/li>\n<li>Macros\uff08\u30de\u30af\u30ed\uff09<\/li>\n<li>Unresolved names or nonexistent elements\uff08\u672a\u89e3\u6c7a\u306e\u540d\u524d\u307e\u305f\u306f\u5b58\u5728\u3057\u306a\u3044\u8981\u7d20\uff09<\/li>\n<li>Other\uff08\u305d\u306e\u4ed6\uff09<\/li>\n<\/ul>\n<p>\u7d50\u679c\u306f\u4ee5\u4e0b\u306e\u3068\u304a\u308a\u3067\u3059\uff08\u30a8\u30e9\u30fc\u30b3\u30fc\u30c9\u756a\u53f7\u6607\u9806\uff09:<\/p>\n<figure class=\"wp-block-table\">\n<table>\n<tbody>\n<tr>\n<td><strong>\u30a8\u30e9\u30fc\u30b3\u30fc\u30c9<\/strong><\/td>\n<td><strong>\u8aac\u660e<\/strong><\/td>\n<td><strong>\u30ab\u30c6\u30b4\u30ea<\/strong><\/td>\n<\/tr>\n<tr>\n<td>E0061<\/td>\n<td>An invalid number of arguments was passed when calling a function\uff08\u95a2\u6570\u3092\u547c\u3073\u51fa\u3059\u969b\u306b\u7121\u52b9\u306a\u6570\u306e\u5f15\u6570\u304c\u6e21\u3055\u308c\u307e\u3057\u305f\uff09<\/td>\n<td>\u305d\u306e\u4ed6<\/td>\n<\/tr>\n<tr>\n<td>E0063<\/td>\n<td>A struct\u2019s or struct-like enum variant\u2019s field was not provided.\uff08\u69cb\u9020\u4f53\u306e\u30d5\u30a3\u30fc\u30eb\u30c9\u307e\u305f\u306f\u69cb\u9020\u4f53\u306e\u3088\u3046\u306a\u5217\u6319\u578b\u30d0\u30ea\u30a2\u30f3\u30c8\u306e\u30d5\u30a3\u30fc\u30eb\u30c9\u304c\u6307\u5b9a\u3055\u308c\u307e\u305b\u3093\u3067\u3057\u305f\uff09<\/td>\n<td>\u672a\u89e3\u6c7a\/\u5b58\u5728\u3057\u306a\u3044<\/td>\n<\/tr>\n<tr>\n<td>E0106<\/td>\n<td>\u3053\u306e\u30a8\u30e9\u30fc\u306f\u578b\u306e\u30e9\u30a4\u30d5\u30bf\u30a4\u30e0\u304c\u6b20\u843d\u3057\u3066\u3044\u308b\u3053\u3068\u3092\u793a\u3057\u307e\u3059\u3002<\/td>\n<td>\u6240\u6709\u6a29\u3068\u30e9\u30a4\u30d5\u30bf\u30a4\u30e0<\/td>\n<\/tr>\n<tr>\n<td>E0107<\/td>\n<td>An incorrect number of generic arguments was provided.\uff08\u8aa4\u3063\u305f\u6570\u306e\u30b8\u30a7\u30cd\u30ea\u30af\u30b9\u5f15\u6570\u304c\u6307\u5b9a\u3055\u308c\u307e\u3057\u305f\u3002\uff09<\/td>\n<td>\u578b\u3068\u30c8\u30ec\u30a4\u30c8<\/td>\n<\/tr>\n<tr>\n<td>E0277<\/td>\n<td>You tried to use a type which doesn\u2019t implement some trait in a place which\uff08\u30c8\u30ec\u30a4\u30c8\u304c\u5fc5\u8981\u306a\u5834\u6240\u3067\u30c8\u30ec\u30a4\u30c8\u3092\u5b9f\u88c5\u3057\u306a\u3044\u578b\u3092\u4f7f\u7528\u3057\u3088\u3046\u3068\u3057\u307e\u3057\u305f\uff09<\/td>\n<td>\u578b\u3068\u30c8\u30ec\u30a4\u30c8<\/td>\n<\/tr>\n<tr>\n<td>E0282<\/td>\n<td>The compiler could not infer a type and asked for a type annotation\uff08\u30b3\u30f3\u30d1\u30a4\u30e9\u30fc\u304c\u578b\u3092\u63a8\u8ad6\u3067\u304d\u305a\u3001\u578b\u30a2\u30ce\u30c6\u30fc\u30b7\u30e7\u30f3\u3092\u8981\u6c42\u3057\u307e\u3057\u305f\uff09<\/td>\n<td>\u578b\u3068\u30c8\u30ec\u30a4\u30c8<\/td>\n<\/tr>\n<tr>\n<td>E0283<\/td>\n<td>An implementation cannot be chosen unambiguously because of lack of information.\uff08\u60c5\u5831\u4e0d\u8db3\u306e\u305f\u3081\u3001\u5b9f\u88c5\u3092\u660e\u78ba\u306b\u9078\u629e\u3067\u304d\u307e\u305b\u3093\u3002\uff09<\/td>\n<td>\u578b\u3068\u30c8\u30ec\u30a4\u30c8<\/td>\n<\/tr>\n<tr>\n<td>E0308<\/td>\n<td>Expected type did not match the received type.\uff08\u5fc5\u8981\u306a\u578b\u3068\u53d7\u3051\u53d6\u3063\u305f\u578b\u304c\u4e00\u81f4\u3057\u307e\u305b\u3093\u3067\u3057\u305f\u3002\uff09<\/td>\n<td>\u578b\u3068\u30c8\u30ec\u30a4\u30c8<\/td>\n<\/tr>\n<tr>\n<td>E0369<\/td>\n<td>A binary operation was attempted on a type which doesn\u2019t support it.\uff08\u30d0\u30a4\u30ca\u30ea\u6f14\u7b97\u304c\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u3066\u3044\u306a\u3044\u578b\u306b\u5bfe\u3057\u3066\u30d0\u30a4\u30ca\u30ea\u6f14\u7b97\u304c\u8a66\u884c\u3055\u308c\u307e\u3057\u305f\u3002\uff09<\/td>\n<td>\u578b\u3068\u30c8\u30ec\u30a4\u30c8<\/td>\n<\/tr>\n<tr>\n<td>E0382<\/td>\n<td>A variable was used after its contents have been moved elsewhere\uff08\u5909\u6570\u306e\u5185\u5bb9\u304c\u4ed6\u306e\u5834\u6240\u306b\u79fb\u3055\u308c\u305f\u5f8c\u306b\u305d\u306e\u5909\u6570\u304c\u4f7f\u7528\u3055\u308c\u307e\u3057\u305f\uff09<\/td>\n<td>\u6240\u6709\u6a29\u3068\u30e9\u30a4\u30d5\u30bf\u30a4\u30e0<\/td>\n<\/tr>\n<tr>\n<td>E0412<\/td>\n<td>A used type name is not in scope.\uff08\u4f7f\u7528\u3055\u308c\u3066\u3044\u308b\u578b\u540d\u304c\u30b9\u30b3\u30fc\u30d7\u5185\u306b\u3042\u308a\u307e\u305b\u3093\u3002\uff09<\/td>\n<td>\u672a\u89e3\u6c7a\/\u5b58\u5728\u3057\u306a\u3044<\/td>\n<\/tr>\n<tr>\n<td>E0423<\/td>\n<td>An identifier was used like a function name or a value was expected and the identifier exists but it belongs to a different namespace.\uff08\u8b58\u5225\u5b50\u304c\u95a2\u6570\u540d\u306e\u3088\u3046\u306b\u4f7f\u7528\u3055\u308c\u3066\u3044\u305f\u304b\u3001\u5024\u304c\u5fc5\u8981\u3067\u8b58\u5225\u5b50\u304c\u5b58\u5728\u3057\u3066\u3044\u3066\u3082\u5225\u306e\u540d\u524d\u7a7a\u9593\u306b\u5c5e\u3057\u3066\u3044\u307e\u3059\u3002\uff09<\/td>\n<td>\u672a\u89e3\u6c7a\/\u5b58\u5728\u3057\u306a\u3044<\/td>\n<\/tr>\n<tr>\n<td>E0425<\/td>\n<td>An unresolved name was used.\uff08\u672a\u89e3\u6c7a\u306e\u540d\u524d\u304c\u4f7f\u7528\u3055\u308c\u307e\u3057\u305f\u3002\uff09<\/td>\n<td>\u672a\u89e3\u6c7a\/\u5b58\u5728\u3057\u306a\u3044<\/td>\n<\/tr>\n<tr>\n<td>E0432<\/td>\n<td>An import was unresolved.\uff08\u30a4\u30f3\u30dd\u30fc\u30c8\u304c\u89e3\u6c7a\u3055\u308c\u307e\u305b\u3093\u3067\u3057\u305f\u3002\uff09<\/td>\n<td>\u672a\u89e3\u6c7a\/\u5b58\u5728\u3057\u306a\u3044<\/td>\n<\/tr>\n<tr>\n<td>E0433<\/td>\n<td>An undeclared crate, module, or type was used.\uff08\u672a\u5ba3\u8a00\u306e\u30af\u30ec\u30fc\u30c8\u3001\u30e2\u30b8\u30e5\u30fc\u30eb\u3001\u307e\u305f\u306f\u578b\u304c\u4f7f\u7528\u3055\u308c\u307e\u3057\u305f\u3002\uff09<\/td>\n<td>\u672a\u89e3\u6c7a\/\u5b58\u5728\u3057\u306a\u3044<\/td>\n<\/tr>\n<tr>\n<td>E0502<\/td>\n<td>A variable already borrowed as immutable was borrowed as mutable.\uff08\u30a4\u30df\u30e5\u30fc\u30bf\u30d6\u30eb\u3068\u3057\u3066\u3059\u3067\u306b\u501f\u7528\u3055\u308c\u3066\u3044\u308b\u5909\u6570\u304c\u30df\u30e5\u30fc\u30bf\u30d6\u30eb\u3068\u3057\u3066\u501f\u7528\u3055\u308c\u307e\u3057\u305f\u3002\uff09<\/td>\n<td>\u6240\u6709\u6a29\u3068\u30e9\u30a4\u30d5\u30bf\u30a4\u30e0<\/td>\n<\/tr>\n<tr>\n<td>E0507<\/td>\n<td>A borrowed value was moved out.\uff08\u501f\u7528\u3055\u308c\u305f\u5024\u304c\u79fb\u52d5\u3055\u308c\u307e\u3057\u305f\u3002\uff09<\/td>\n<td>\u6240\u6709\u6a29\u3068\u30e9\u30a4\u30d5\u30bf\u30a4\u30e0<\/td>\n<\/tr>\n<tr>\n<td>E0515<\/td>\n<td>A reference to a local variable was returned.\uff08\u30ed\u30fc\u30ab\u30eb\u5909\u6570\u3078\u306e\u53c2\u7167\u304c\u8fd4\u3055\u308c\u307e\u3057\u305f\u3002\uff09<\/td>\n<td>\u6240\u6709\u6a29\u3068\u30e9\u30a4\u30d5\u30bf\u30a4\u30e0<\/td>\n<\/tr>\n<tr>\n<td>E0596<\/td>\n<td>\u3053\u306e\u30a8\u30e9\u30fc\u306f\u30a4\u30df\u30e5\u30fc\u30bf\u30d6\u30eb\u306e\u5909\u6570\u3092\u30df\u30e5\u30fc\u30bf\u30d6\u30eb\u3067\u501f\u7528\u3057\u3088\u3046\u3068\u3057\u305f\u305f\u3081\u306b\u767a\u751f\u3057\u3066\u3044\u307e\u3059\u3002<\/td>\n<td>\u6240\u6709\u6a29\u3068\u30e9\u30a4\u30d5\u30bf\u30a4\u30e0<\/td>\n<\/tr>\n<tr>\n<td>E0597<\/td>\n<td>\u3053\u306e\u30a8\u30e9\u30fc\u306f\u5024\u304c\u501f\u7528\u3055\u308c\u3066\u3044\u308b\u969b\u306b\u524a\u9664\u3055\u308c\u305f\u3053\u3068\u304c\u539f\u56e0\u3067\u767a\u751f\u3057\u307e\u3059\u3002<\/td>\n<td>\u6240\u6709\u6a29\u3068\u30e9\u30a4\u30d5\u30bf\u30a4\u30e0<\/td>\n<\/tr>\n<tr>\n<td>E0599<\/td>\n<td>\u3053\u306e\u30a8\u30e9\u30fc\u306f\u3042\u308b\u30e1\u30bd\u30c3\u30c9\u304c\u305d\u306e\u30e1\u30bd\u30c3\u30c9\u3092\u5b9f\u88c5\u3057\u3066\u3044\u306a\u3044\u578b\u306b\u5bfe\u3057\u3066\u4f7f\u7528\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u306b\u767a\u751f\u3057\u307e\u3059\u3002<\/td>\n<td>\u578b\u3068\u30c8\u30ec\u30a4\u30c8<\/td>\n<\/tr>\n<tr>\n<td>E0609<\/td>\n<td>Attempted to access a nonexistent field in a struct.\uff08\u69cb\u9020\u4f53\u306b\u5b58\u5728\u3057\u306a\u3044\u30d5\u30a3\u30fc\u30eb\u30c9\u306b\u30a2\u30af\u30bb\u30b9\u3057\u3088\u3046\u3068\u3057\u307e\u3057\u305f\u3002\uff09<\/td>\n<td>\u672a\u89e3\u6c7a\/\u5b58\u5728\u3057\u306a\u3044<\/td>\n<\/tr>\n<tr>\n<td>E0614<\/td>\n<td>Attempted to dereference a variable which cannot be dereferenced.\uff08\u9006\u53c2\u7167\u3067\u304d\u306a\u3044\u5909\u6570\u3092\u9006\u53c2\u7167\u3057\u3088\u3046\u3068\u3057\u307e\u3057\u305f\u3002\uff09<\/td>\n<td>\u305d\u306e\u4ed6<\/td>\n<\/tr>\n<tr>\n<td>E0658<\/td>\n<td>An unstable feature was used.\uff08\u4e0d\u5b89\u5b9a\u306a\u6a5f\u80fd\u304c\u4f7f\u7528\u3055\u308c\u307e\u3057\u305f\u3002\uff09<\/td>\n<td>\u305d\u306e\u4ed6<\/td>\n<\/tr>\n<tr>\n<td>E0716<\/td>\n<td>A temporary value is being dropped while a borrow is still in active use.\uff08\u4e00\u6642\u7684\u306a\u5024\u304c\u307e\u3060\u501f\u7528\u4e2d\u306b\u7834\u68c4\u3055\u308c\u3066\u3044\u307e\u3059\u3002\uff09<\/td>\n<td>\u6240\u6709\u6a29\u3068\u30e9\u30a4\u30d5\u30bf\u30a4\u30e0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n<p>\u6b8b\u5ff5\u306a\u304c\u3089\u3001\u5f0a\u793e\u304c\u53ce\u96c6\u3057\u305f\u30c7\u30fc\u30bf\u3067\u306f\u30de\u30af\u30ed\u306b\u3064\u3044\u3066\u306f\u8a73\u7d30\u306b\u306f\u5206\u304b\u308a\u307e\u305b\u3093\u3002 \u30de\u30af\u30ed\u5c55\u958b\u306e\u554f\u984c\u3092\u78ba\u5b9f\u306b\u691c\u51fa\u3059\u308b\u3053\u3068\u3082\u3001\u6b63\u5e38\u306b\u5c55\u958b\u3055\u308c\u305f\u30de\u30af\u30ed\u306b\u8d77\u56e0\u3059\u308b\u305d\u306e\u4ed6\u306e\u30a8\u30e9\u30fc\u3082\u7279\u5b9a\u3067\u304d\u307e\u305b\u3093\u3002 \u3053\u308c\u306f\u3001\u5f0a\u793e\u304c\u53ce\u96c6\u3059\u308b\u30c7\u30fc\u30bf\u306b\u3088\u308a\u7d30\u304b\u3044\u5206\u985e\u3092\u5c0e\u5165\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3053\u3068\u3092\u793a\u5506\u3057\u3066\u3044\u308b\u3068\u601d\u308f\u308c\u307e\u3059\u3002<\/p>\n<p>\u30de\u30af\u30ed\u3092\u7121\u8996\u3057\u3066\u4e0a\u4f4d 25 \u4ef6\u306e\u4e00\u822c\u7684\u306a\u30a8\u30e9\u30fc\u3092\u898b\u308b\u9650\u308a\u3001\u958b\u767a\u8005\u3092\u5927\u3044\u306b\u82e6\u3057\u3081\u308b Rust \u306e\u8981\u7d20\u306f\u306a\u3044\u3088\u3046\u306b\u898b\u3048\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u79c1\u305f\u3061\u306f\u4f8b\u5916\u306a\u304f Rust \u306e\u3042\u3089\u3086\u308b\u90e8\u5206\u3092\u6c17\u306b\u5165\u3063\u3066\u3044\u308b\u306e\u3067\u3059\u3002<\/p>\n<ul>\n<li>\u578b\u3068\u30c8\u30ec\u30a4\u30c8 &#8211; \u30a8\u30e9\u30fc 7 \u4ef6<\/li>\n<li>\u6240\u6709\u6a29\u3068\u30e9\u30a4\u30d5\u30bf\u30a4\u30e0 &#8211; \u30a8\u30e9\u30fc 8 \u4ef6<\/li>\n<li>\u672a\u89e3\u6c7a\u306e\u540d\u524d\u307e\u305f\u306f\u5b58\u5728\u3057\u306a\u3044\u8981\u7d20 &#8211; \u30a8\u30e9\u30fc 7 \u4ef6<\/li>\n<li>\u305d\u306e\u4ed6 &#8211; \u30a8\u30e9\u30fc 3 \u4ef6<\/li>\n<\/ul>\n<h2 class=\"wp-block-heading\">\u307e\u3068\u3081<\/h2>\n<p>\u9023\u8f09\u306e\u3053\u306e\u30d1\u30fc\u30c8\u3067\u306f\u3001RustRover \u3067\u906d\u9047\u3059\u308b\u6700\u3082\u4e00\u822c\u7684\u306a Rust \u30b3\u30f3\u30d1\u30a4\u30e9\u30fc\u30a8\u30e9\u30fc\u306e\u3046\u3061\u4e0a\u4f4d 5 \u4ef6\u306b\u3064\u3044\u3066\u7126\u70b9\u3092\u5f53\u3066\u307e\u3057\u305f\u3002 \u3053\u306e\u3046\u3061 3 \u4ef6\u306e\u30a8\u30e9\u30fc\u306f\u578b\u3068\u30c8\u30ec\u30a4\u30c8\u306b\u95a2\u9023\u3059\u308b\u3082\u306e\u3067\u3042\u308a\u3001\u3053\u306e\u30ab\u30c6\u30b4\u30ea\u304c Rust \u30b3\u30fc\u30c9\u3092\u6b63\u3059\u4e0a\u3067\u3042\u308b\u7a0b\u5ea6\u91cd\u8981\u306a\u3082\u306e\u3067\u3042\u308b\u3053\u3068\u304c\u3046\u304b\u304c\u3048\u307e\u3059\u3002 25 \u4ef6\u306e\u6700\u3082\u4e00\u822c\u7684\u306a\u30a8\u30e9\u30fc\u306b\u95a2\u3059\u308b\u3088\u308a\u4e00\u822c\u7684\u306a\u30c7\u30fc\u30bf\u3092\u8003\u5bdf\u3057\u3066\u7d50\u8ad6\u3092\u51fa\u3057\u3001\u983b\u7e6b\u306b\u906d\u9047\u3059\u308b\u30a8\u30e9\u30fc\u306b\u306f Rust \u306e\u4ed6\u306e\u5074\u9762\u3082\u95a2\u4e0e\u3057\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3057\u305f\u3002<\/p>\n\n\n<p><strong>\u30aa\u30ea\u30b8\u30ca\u30eb\uff08\u82f1\u8a9e\uff09\u30d6\u30ed\u30b0\u6295\u7a3f\u8a18\u4e8b\u306e\u4f5c\u8005\uff1a<\/strong><\/p>\n\n\n    <div class=\"about-author \">\n        <div class=\"about-author__box\">\n            <div class=\"row\">\n                <div class=\"about-author__box-img\">\n                    <img decoding=\"async\" src=\"https:\/\/secure.gravatar.com\/avatar\/?s=200&#038;r=g\" width=\"200\" height=\"200\" alt=\"\" loading=\"lazy\"  class=\"avatar avatar-200 wp-user-avatar wp-user-avatar-200 photo avatar-default\">\n                <\/div>\n                <div class=\"about-author__box-text\">\n                                                        <\/div>\n            <\/div>\n        <\/div>\n    <\/div>\n","protected":false},"author":1394,"featured_media":440780,"comment_status":"closed","ping_status":"closed","template":"","categories":[],"tags":[],"cross-post-tag":[],"acf":[],"_links":{"self":[{"href":"https:\/\/blog.jetbrains.com\/ja\/wp-json\/wp\/v2\/rust\/440772"}],"collection":[{"href":"https:\/\/blog.jetbrains.com\/ja\/wp-json\/wp\/v2\/rust"}],"about":[{"href":"https:\/\/blog.jetbrains.com\/ja\/wp-json\/wp\/v2\/types\/rust"}],"author":[{"embeddable":true,"href":"https:\/\/blog.jetbrains.com\/ja\/wp-json\/wp\/v2\/users\/1394"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.jetbrains.com\/ja\/wp-json\/wp\/v2\/comments?post=440772"}],"version-history":[{"count":7,"href":"https:\/\/blog.jetbrains.com\/ja\/wp-json\/wp\/v2\/rust\/440772\/revisions"}],"predecessor-version":[{"id":441212,"href":"https:\/\/blog.jetbrains.com\/ja\/wp-json\/wp\/v2\/rust\/440772\/revisions\/441212"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blog.jetbrains.com\/ja\/wp-json\/wp\/v2\/media\/440780"}],"wp:attachment":[{"href":"https:\/\/blog.jetbrains.com\/ja\/wp-json\/wp\/v2\/media?parent=440772"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.jetbrains.com\/ja\/wp-json\/wp\/v2\/categories?post=440772"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.jetbrains.com\/ja\/wp-json\/wp\/v2\/tags?post=440772"},{"taxonomy":"cross-post-tag","embeddable":true,"href":"https:\/\/blog.jetbrains.com\/ja\/wp-json\/wp\/v2\/cross-post-tag?post=440772"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}