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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="`Error` is a trait representing the basic expectations for error values, i.e., values of type `E` in `Result&#60;T, E&#62;`."><title>StdError in serde::ser - Rust</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../static.files/rustdoc-ca0dd0c4.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="serde" data-themes="" data-resource-suffix="" data-rustdoc-version="1.93.1 (01f6ddf75 2026-02-11) (Arch Linux rust 1:1.93.1-1)" data-channel="1.93.1" data-search-js="search-9e2438ea.js" data-stringdex-js="stringdex-a3946164.js" data-settings-js="settings-c38705f0.js" ><script src="../../static.files/storage-e2aeef58.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../static.files/main-a410ff4d.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-263c88ec.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-044be391.svg"></head><body class="rustdoc trait"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><rustdoc-topbar><h2><a href="#">StdError</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../serde/index.html">serde</a><span class="version">1.0.228</span></h2></div><div class="sidebar-elems"><section id="rustdoc-toc"><h2 class="location"><a href="#">StdError</a></h2><h3><a href="#">Sections</a></h3><ul class="block top-toc"><li><a href="#error-source" title="Error source">Error source</a></li><li><a href="#example" title="Example">Example</a></li></ul><h3><a href="#provided-methods">Provided Methods</a></h3><ul class="block"><li><a href="#method.cause" title="cause">cause</a></li><li><a href="#method.description" title="description">description</a></li><li><a href="#method.provide" title="provide">provide</a></li><li><a href="#method.source" title="source">source</a></li></ul><h3><a href="#implementations">Methods</a></h3><ul class="block method"><li><a href="#method.downcast" title="downcast">downcast</a></li><li><a href="#method.downcast-1" title="downcast">downcast</a></li><li><a href="#method.downcast-2" title="downcast">downcast</a></li><li><a href="#method.downcast_mut" title="downcast_mut">downcast_mut</a></li><li><a href="#method.downcast_mut-1" title="downcast_mut">downcast_mut</a></li><li><a href="#method.downcast_mut-2" title="downcast_mut">downcast_mut</a></li><li><a href="#method.downcast_ref" title="downcast_ref">downcast_ref</a></li><li><a href="#method.downcast_ref-1" title="downcast_ref">downcast_ref</a></li><li><a href="#method.downcast_ref-2" title="downcast_ref">downcast_ref</a></li><li><a href="#method.is" title="is">is</a></li><li><a href="#method.is-1" title="is">is</a></li><li><a href="#method.is-2" title="is">is</a></li><li><a href="#method.sources" title="sources">sources</a></li></ul><h3><a href="#trait-implementations">Trait Implementations</a></h3><ul class="block trait-implementation"><li><a href="#impl-From%3C%26str%3E-for-Box%3Cdyn+Error%3E" title="From&#60;&#38;str&#62;">From&#60;&#38;str&#62;</a></li><li><a href="#impl-From%3C%26str%3E-for-Box%3Cdyn+Error+%2B+Send+%2B+Sync%3E" title="From&#60;&#38;str&#62;">From&#60;&#38;str&#62;</a></li><li><a href="#impl-From%3CCow%3C'b,+str%3E%3E-for-Box%3Cdyn+Error%3E" title="From&#60;Cow&#60;&#39;b, str&#62;&#62;">From&#60;Cow&#60;&#39;b, str&#62;&#62;</a></li><li><a href="#impl-From%3CCow%3C'b,+str%3E%3E-for-Box%3Cdyn+Error+%2B+Send+%2B+Sync%3E" title="From&#60;Cow&#60;&#39;b, str&#62;&#62;">From&#60;Cow&#60;&#39;b, str&#62;&#62;</a></li><li><a href="#impl-From%3CE%3E-for-Box%3Cdyn+Error%3E" title="From&#60;E&#62;">From&#60;E&#62;</a></li><li><a href="#impl-From%3CE%3E-for-Box%3Cdyn+Error+%2B+Send+%2B+Sync%3E" title="From&#60;E&#62;">From&#60;E&#62;</a></li><li><a href="#impl-From%3CString%3E-for-Box%3Cdyn+Error%3E" title="From&#60;String&#62;">From&#60;String&#62;</a></li><li><a href="#impl-From%3CString%3E-for-Box%3Cdyn+Error+%2B+Send+%2B+Sync%3E" title="From&#60;String&#62;">From&#60;String&#62;</a></li></ul><h3><a href="#implementors">Implementors</a></h3></section><div id="rustdoc-modnav"><h2><a href="index.html">In serde::<wbr>ser</a></h2></div></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><div class="width-limiter"><section id="main-content" class="content"><div class="main-heading"><div class="rustdoc-breadcrumbs"><a href="../index.html">serde</a>::<wbr><a href="index.html">ser</a></div><h1>Trait <span class="trait">StdError</span>&nbsp;<button id="copy-path" title="Copy item path to clipboard">Copy item path</button></h1><rustdoc-toolbar></rustdoc-toolbar><span class="sub-heading"><span class="since" title="Stable since Rust version 1.0.0">1.0.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/core/error.rs.html#59">Source</a> </span></div><pre class="rust item-decl"><code>pub trait StdError: <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a> + <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/fmt/trait.Display.html" title="trait core::fmt::Display">Display</a> {
// Provided methods
fn <a href="#method.source" class="fn">source</a>(&amp;self) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.93.1/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;&amp;(dyn <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> + 'static)&gt; { ... }
<span class="item-spacer"></span> fn <a href="#method.description" class="fn">description</a>(&amp;self) -&gt; &amp;<a class="primitive" href="https://doc.rust-lang.org/1.93.1/std/primitive.str.html">str</a> { ... }
<span class="item-spacer"></span> fn <a href="#method.cause" class="fn">cause</a>(&amp;self) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.93.1/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;&amp;dyn <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a>&gt; { ... }
<span class="item-spacer"></span> fn <a href="#method.provide" class="fn">provide</a>&lt;'a&gt;(&amp;'a self, request: &amp;mut <a class="struct" href="https://doc.rust-lang.org/1.93.1/core/error/struct.Request.html" title="struct core::error::Request">Request</a>&lt;'a&gt;) { ... }
}</code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p><code>Error</code> is a trait representing the basic expectations for error values,
i.e., values of type <code>E</code> in <a href="https://doc.rust-lang.org/1.93.1/core/result/enum.Result.html" title="enum core::result::Result"><code>Result&lt;T, E&gt;</code></a>.</p>
<p>Errors must describe themselves through the <a href="https://doc.rust-lang.org/1.93.1/core/fmt/trait.Display.html" title="trait core::fmt::Display"><code>Display</code></a> and <a href="https://doc.rust-lang.org/1.93.1/core/fmt/trait.Debug.html" title="trait core::fmt::Debug"><code>Debug</code></a>
traits. Error messages are typically concise lowercase sentences without
trailing punctuation:</p>
<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">let </span>err = <span class="string">"NaN"</span>.parse::&lt;u32&gt;().unwrap_err();
<span class="macro">assert_eq!</span>(err.to_string(), <span class="string">"invalid digit found in string"</span>);</code></pre></div><h2 id="error-source"><a class="doc-anchor" href="#error-source">§</a>Error source</h2>
<p>Errors may provide cause information. <a href="../de/trait.StdError.html#method.source" title="method serde::de::StdError::source"><code>Error::source()</code></a> is generally
used when errors cross “abstraction boundaries”. If one module must report
an error that is caused by an error from a lower-level module, it can allow
accessing that error via <code>Error::source()</code>. This makes it possible for the
high-level module to provide its own errors while also revealing some of the
implementation for debugging.</p>
<p>In error types that wrap an underlying error, the underlying error
should be either returned by the outer error’s <code>Error::source()</code>, or rendered
by the outer error’s <code>Display</code> implementation, but not both.</p>
<h2 id="example"><a class="doc-anchor" href="#example">§</a>Example</h2>
<p>Implementing the <code>Error</code> trait only requires that <code>Debug</code> and <code>Display</code> are implemented too.</p>
<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>std::error::Error;
<span class="kw">use </span>std::fmt;
<span class="kw">use </span>std::path::PathBuf;
<span class="attr">#[derive(Debug)]
</span><span class="kw">struct </span>ReadConfigError {
path: PathBuf
}
<span class="kw">impl </span>fmt::Display <span class="kw">for </span>ReadConfigError {
<span class="kw">fn </span>fmt(<span class="kw-2">&amp;</span><span class="self">self</span>, f: <span class="kw-2">&amp;mut </span>fmt::Formatter&lt;<span class="lifetime">'_</span>&gt;) -&gt; fmt::Result {
<span class="kw">let </span>path = <span class="self">self</span>.path.display();
<span class="macro">write!</span>(f, <span class="string">"unable to read configuration at {path}"</span>)
}
}
<span class="kw">impl </span>Error <span class="kw">for </span>ReadConfigError {}</code></pre></div></div></details><h2 id="provided-methods" class="section-header">Provided Methods<a href="#provided-methods" class="anchor">§</a></h2><div class="methods"><details class="toggle method-toggle" open><summary><section id="method.source" class="method"><span class="rightside"><span class="since" title="Stable since Rust version 1.30.0">1.30.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/core/error.rs.html#111">Source</a></span><h4 class="code-header">fn <a href="#method.source" class="fn">source</a>(&amp;self) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.93.1/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;&amp;(dyn <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> + 'static)&gt;</h4></section></summary><div class="docblock"><p>Returns the lower-level source of this error, if any.</p>
<h5 id="examples"><a class="doc-anchor" href="#examples">§</a>Examples</h5>
<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>std::error::Error;
<span class="kw">use </span>std::fmt;
<span class="attr">#[derive(Debug)]
</span><span class="kw">struct </span>SuperError {
source: SuperErrorSideKick,
}
<span class="kw">impl </span>fmt::Display <span class="kw">for </span>SuperError {
<span class="kw">fn </span>fmt(<span class="kw-2">&amp;</span><span class="self">self</span>, f: <span class="kw-2">&amp;mut </span>fmt::Formatter&lt;<span class="lifetime">'_</span>&gt;) -&gt; fmt::Result {
<span class="macro">write!</span>(f, <span class="string">"SuperError is here!"</span>)
}
}
<span class="kw">impl </span>Error <span class="kw">for </span>SuperError {
<span class="kw">fn </span>source(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="prelude-ty">Option</span>&lt;<span class="kw-2">&amp;</span>(<span class="kw">dyn </span>Error + <span class="lifetime">'static</span>)&gt; {
<span class="prelude-val">Some</span>(<span class="kw-2">&amp;</span><span class="self">self</span>.source)
}
}
<span class="attr">#[derive(Debug)]
</span><span class="kw">struct </span>SuperErrorSideKick;
<span class="kw">impl </span>fmt::Display <span class="kw">for </span>SuperErrorSideKick {
<span class="kw">fn </span>fmt(<span class="kw-2">&amp;</span><span class="self">self</span>, f: <span class="kw-2">&amp;mut </span>fmt::Formatter&lt;<span class="lifetime">'_</span>&gt;) -&gt; fmt::Result {
<span class="macro">write!</span>(f, <span class="string">"SuperErrorSideKick is here!"</span>)
}
}
<span class="kw">impl </span>Error <span class="kw">for </span>SuperErrorSideKick {}
<span class="kw">fn </span>get_super_error() -&gt; <span class="prelude-ty">Result</span>&lt;(), SuperError&gt; {
<span class="prelude-val">Err</span>(SuperError { source: SuperErrorSideKick })
}
<span class="kw">fn </span>main() {
<span class="kw">match </span>get_super_error() {
<span class="prelude-val">Err</span>(e) =&gt; {
<span class="macro">println!</span>(<span class="string">"Error: {e}"</span>);
<span class="macro">println!</span>(<span class="string">"Caused by: {}"</span>, e.source().unwrap());
}
<span class="kw">_ </span>=&gt; <span class="macro">println!</span>(<span class="string">"No error"</span>),
}
}</code></pre></div></div></details><details class="toggle method-toggle" open><summary><section id="method.description" class="method"><span class="rightside"><span class="since" title="Stable since Rust version 1.0.0">1.0.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/core/error.rs.html#137">Source</a></span><h4 class="code-header">fn <a href="#method.description" class="fn">description</a>(&amp;self) -&gt; &amp;<a class="primitive" href="https://doc.rust-lang.org/1.93.1/std/primitive.str.html">str</a></h4></section><span class="item-info"><div class="stab deprecated"><span class="emoji">👎</span><span>Deprecated since 1.42.0: use the Display impl or to_string()</span></div></span></summary><div class="docblock">
<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">if let </span><span class="prelude-val">Err</span>(e) = <span class="string">"xc"</span>.parse::&lt;u32&gt;() {
<span class="comment">// Print `e` itself, no need for description().
</span><span class="macro">eprintln!</span>(<span class="string">"Error: {e}"</span>);
}</code></pre></div></div></details><section id="method.cause" class="method"><span class="rightside"><span class="since" title="Stable since Rust version 1.0.0">1.0.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/core/error.rs.html#147">Source</a></span><h4 class="code-header">fn <a href="#method.cause" class="fn">cause</a>(&amp;self) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.93.1/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;&amp;dyn <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a>&gt;</h4></section><span class="item-info"><div class="stab deprecated"><span class="emoji">👎</span><span>Deprecated since 1.33.0: replaced by Error::source, which can support downcasting</span></div></span><details class="toggle method-toggle" open><summary><section id="method.provide" class="method"><a class="src rightside" href="https://doc.rust-lang.org/1.93.1/src/core/error.rs.html#210">Source</a><h4 class="code-header">fn <a href="#method.provide" class="fn">provide</a>&lt;'a&gt;(&amp;'a self, request: &amp;mut <a class="struct" href="https://doc.rust-lang.org/1.93.1/core/error/struct.Request.html" title="struct core::error::Request">Request</a>&lt;'a&gt;)</h4></section><span class="item-info"><div class="stab unstable"><span class="emoji">🔬</span><span>This is a nightly-only experimental API. (<code>error_generic_member_access</code>)</span></div></span></summary><div class="docblock"><p>Provides type-based access to context intended for error reports.</p>
<p>Used in conjunction with <a href="https://doc.rust-lang.org/1.93.1/core/error/struct.Request.html#method.provide_value" title="method core::error::Request::provide_value"><code>Request::provide_value</code></a> and <a href="https://doc.rust-lang.org/1.93.1/core/error/struct.Request.html#method.provide_ref" title="method core::error::Request::provide_ref"><code>Request::provide_ref</code></a> to extract
references to member variables from <code>dyn Error</code> trait objects.</p>
<h5 id="example-1"><a class="doc-anchor" href="#example-1">§</a>Example</h5>
<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="attr">#![feature(error_generic_member_access)]
</span><span class="kw">use </span>core::fmt;
<span class="kw">use </span>core::error::{request_ref, Request};
<span class="attr">#[derive(Debug)]
</span><span class="kw">enum </span>MyLittleTeaPot {
Empty,
}
<span class="attr">#[derive(Debug)]
</span><span class="kw">struct </span>MyBacktrace {
<span class="comment">// ...
</span>}
<span class="kw">impl </span>MyBacktrace {
<span class="kw">fn </span>new() -&gt; MyBacktrace {
<span class="comment">// ...
</span>}
}
<span class="attr">#[derive(Debug)]
</span><span class="kw">struct </span>Error {
backtrace: MyBacktrace,
}
<span class="kw">impl </span>fmt::Display <span class="kw">for </span>Error {
<span class="kw">fn </span>fmt(<span class="kw-2">&amp;</span><span class="self">self</span>, f: <span class="kw-2">&amp;mut </span>fmt::Formatter&lt;<span class="lifetime">'_</span>&gt;) -&gt; fmt::Result {
<span class="macro">write!</span>(f, <span class="string">"Example Error"</span>)
}
}
<span class="kw">impl </span>std::error::Error <span class="kw">for </span>Error {
<span class="kw">fn </span>provide&lt;<span class="lifetime">'a</span>&gt;(<span class="kw-2">&amp;</span><span class="lifetime">'a </span><span class="self">self</span>, request: <span class="kw-2">&amp;mut </span>Request&lt;<span class="lifetime">'a</span>&gt;) {
request
.provide_ref::&lt;MyBacktrace&gt;(<span class="kw-2">&amp;</span><span class="self">self</span>.backtrace);
}
}
<span class="kw">fn </span>main() {
<span class="kw">let </span>backtrace = MyBacktrace::new();
<span class="kw">let </span>error = Error { backtrace };
<span class="kw">let </span>dyn_error = <span class="kw-2">&amp;</span>error <span class="kw">as </span><span class="kw-2">&amp;</span><span class="kw">dyn </span>std::error::Error;
<span class="kw">let </span>backtrace_ref = request_ref::&lt;MyBacktrace&gt;(dyn_error).unwrap();
<span class="macro">assert!</span>(core::ptr::eq(<span class="kw-2">&amp;</span>error.backtrace, backtrace_ref));
<span class="macro">assert!</span>(request_ref::&lt;MyLittleTeaPot&gt;(dyn_error).is_none());
}</code></pre></div></div></details></div><h2 id="implementations" class="section-header">Implementations<a href="#implementations" class="anchor">§</a></h2><div id="implementations-list"><details class="toggle implementors-toggle" open><summary><section id="impl-dyn+Error" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.93.1/src/core/error.rs.html#225">Source</a><a href="#impl-dyn+Error" class="anchor">§</a><h3 class="code-header">impl dyn <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.is" class="method"><span class="rightside"><span class="since" title="Stable since Rust version 1.3.0">1.3.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/core/error.rs.html#229">Source</a></span><h4 class="code-header">pub fn <a href="#method.is" class="fn">is</a>&lt;T&gt;(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/1.93.1/std/primitive.bool.html">bool</a><div class="where">where
T: <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> + 'static,</div></h4></section></summary><div class="docblock"><p>Returns <code>true</code> if the inner type is the same as <code>T</code>.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.downcast_ref" class="method"><span class="rightside"><span class="since" title="Stable since Rust version 1.3.0">1.3.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/core/error.rs.html#244">Source</a></span><h4 class="code-header">pub fn <a href="#method.downcast_ref" class="fn">downcast_ref</a>&lt;T&gt;(&amp;self) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.93.1/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.93.1/std/primitive.reference.html">&amp;T</a>&gt;<div class="where">where
T: <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> + 'static,</div></h4></section></summary><div class="docblock"><p>Returns some reference to the inner value if it is of type <code>T</code>, or
<code>None</code> if it isn’t.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.downcast_mut" class="method"><span class="rightside"><span class="since" title="Stable since Rust version 1.3.0">1.3.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/core/error.rs.html#257">Source</a></span><h4 class="code-header">pub fn <a href="#method.downcast_mut" class="fn">downcast_mut</a>&lt;T&gt;(&amp;mut self) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.93.1/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.93.1/std/primitive.reference.html">&amp;mut T</a>&gt;<div class="where">where
T: <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> + 'static,</div></h4></section></summary><div class="docblock"><p>Returns some mutable reference to the inner value if it is of type <code>T</code>, or
<code>None</code> if it isn’t.</p>
</div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-dyn+Error+%2B+Send" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.93.1/src/core/error.rs.html#267">Source</a><a href="#impl-dyn+Error+%2B+Send" class="anchor">§</a><h3 class="code-header">impl dyn <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> + <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.is-1" class="method"><span class="rightside"><span class="since" title="Stable since Rust version 1.3.0">1.3.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/core/error.rs.html#271">Source</a></span><h4 class="code-header">pub fn <a href="#method.is-1" class="fn">is</a>&lt;T&gt;(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/1.93.1/std/primitive.bool.html">bool</a><div class="where">where
T: <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> + 'static,</div></h4></section></summary><div class="docblock"><p>Forwards to the method defined on the type <code>dyn Error</code>.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.downcast_ref-1" class="method"><span class="rightside"><span class="since" title="Stable since Rust version 1.3.0">1.3.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/core/error.rs.html#278">Source</a></span><h4 class="code-header">pub fn <a href="#method.downcast_ref-1" class="fn">downcast_ref</a>&lt;T&gt;(&amp;self) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.93.1/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.93.1/std/primitive.reference.html">&amp;T</a>&gt;<div class="where">where
T: <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> + 'static,</div></h4></section></summary><div class="docblock"><p>Forwards to the method defined on the type <code>dyn Error</code>.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.downcast_mut-1" class="method"><span class="rightside"><span class="since" title="Stable since Rust version 1.3.0">1.3.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/core/error.rs.html#285">Source</a></span><h4 class="code-header">pub fn <a href="#method.downcast_mut-1" class="fn">downcast_mut</a>&lt;T&gt;(&amp;mut self) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.93.1/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.93.1/std/primitive.reference.html">&amp;mut T</a>&gt;<div class="where">where
T: <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> + 'static,</div></h4></section></summary><div class="docblock"><p>Forwards to the method defined on the type <code>dyn Error</code>.</p>
</div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-dyn+Error+%2B+Send+%2B+Sync" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.93.1/src/core/error.rs.html#290">Source</a><a href="#impl-dyn+Error+%2B+Send+%2B+Sync" class="anchor">§</a><h3 class="code-header">impl dyn <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> + <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> + <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.is-2" class="method"><span class="rightside"><span class="since" title="Stable since Rust version 1.3.0">1.3.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/core/error.rs.html#294">Source</a></span><h4 class="code-header">pub fn <a href="#method.is-2" class="fn">is</a>&lt;T&gt;(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/1.93.1/std/primitive.bool.html">bool</a><div class="where">where
T: <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> + 'static,</div></h4></section></summary><div class="docblock"><p>Forwards to the method defined on the type <code>dyn Error</code>.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.downcast_ref-2" class="method"><span class="rightside"><span class="since" title="Stable since Rust version 1.3.0">1.3.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/core/error.rs.html#301">Source</a></span><h4 class="code-header">pub fn <a href="#method.downcast_ref-2" class="fn">downcast_ref</a>&lt;T&gt;(&amp;self) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.93.1/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.93.1/std/primitive.reference.html">&amp;T</a>&gt;<div class="where">where
T: <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> + 'static,</div></h4></section></summary><div class="docblock"><p>Forwards to the method defined on the type <code>dyn Error</code>.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.downcast_mut-2" class="method"><span class="rightside"><span class="since" title="Stable since Rust version 1.3.0">1.3.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/core/error.rs.html#308">Source</a></span><h4 class="code-header">pub fn <a href="#method.downcast_mut-2" class="fn">downcast_mut</a>&lt;T&gt;(&amp;mut self) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.93.1/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.93.1/std/primitive.reference.html">&amp;mut T</a>&gt;<div class="where">where
T: <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> + 'static,</div></h4></section></summary><div class="docblock"><p>Forwards to the method defined on the type <code>dyn Error</code>.</p>
</div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-dyn+Error-1" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.93.1/src/core/error.rs.html#313">Source</a><a href="#impl-dyn+Error-1" class="anchor">§</a><h3 class="code-header">impl dyn <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.sources" class="method"><a class="src rightside" href="https://doc.rust-lang.org/1.93.1/src/core/error.rs.html#367">Source</a><h4 class="code-header">pub fn <a href="#method.sources" class="fn">sources</a>(&amp;self) -&gt; <a class="struct" href="https://doc.rust-lang.org/1.93.1/core/error/struct.Source.html" title="struct core::error::Source">Source</a>&lt;'_&gt; <a href="#" class="tooltip" data-notable-ty="Source&lt;&#39;_&gt;">ⓘ</a></h4></section><span class="item-info"><div class="stab unstable"><span class="emoji">🔬</span><span>This is a nightly-only experimental API. (<code>error_iter</code>)</span></div></span></summary><div class="docblock"><p>Returns an iterator starting with the current error and continuing with
recursively calling <a href="../de/trait.StdError.html#method.source" title="method serde::de::StdError::source"><code>Error::source</code></a>.</p>
<p>If you want to omit the current error and only use its sources,
use <code>skip(1)</code>.</p>
<h5 id="examples-1"><a class="doc-anchor" href="#examples-1">§</a>Examples</h5>
<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="attr">#![feature(error_iter)]
</span><span class="kw">use </span>std::error::Error;
<span class="kw">use </span>std::fmt;
<span class="attr">#[derive(Debug)]
</span><span class="kw">struct </span>A;
<span class="attr">#[derive(Debug)]
</span><span class="kw">struct </span>B(<span class="prelude-ty">Option</span>&lt;Box&lt;<span class="kw">dyn </span>Error + <span class="lifetime">'static</span>&gt;&gt;);
<span class="kw">impl </span>fmt::Display <span class="kw">for </span>A {
<span class="kw">fn </span>fmt(<span class="kw-2">&amp;</span><span class="self">self</span>, f: <span class="kw-2">&amp;mut </span>fmt::Formatter&lt;<span class="lifetime">'_</span>&gt;) -&gt; fmt::Result {
<span class="macro">write!</span>(f, <span class="string">"A"</span>)
}
}
<span class="kw">impl </span>fmt::Display <span class="kw">for </span>B {
<span class="kw">fn </span>fmt(<span class="kw-2">&amp;</span><span class="self">self</span>, f: <span class="kw-2">&amp;mut </span>fmt::Formatter&lt;<span class="lifetime">'_</span>&gt;) -&gt; fmt::Result {
<span class="macro">write!</span>(f, <span class="string">"B"</span>)
}
}
<span class="kw">impl </span>Error <span class="kw">for </span>A {}
<span class="kw">impl </span>Error <span class="kw">for </span>B {
<span class="kw">fn </span>source(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="prelude-ty">Option</span>&lt;<span class="kw-2">&amp;</span>(<span class="kw">dyn </span>Error + <span class="lifetime">'static</span>)&gt; {
<span class="self">self</span>.<span class="number">0</span>.as_ref().map(|e| e.as_ref())
}
}
<span class="kw">let </span>b = B(<span class="prelude-val">Some</span>(Box::new(A)));
<span class="comment">// let err : Box&lt;Error&gt; = b.into(); // or
</span><span class="kw">let </span>err = <span class="kw-2">&amp;</span>b <span class="kw">as </span><span class="kw-2">&amp;</span><span class="kw">dyn </span>Error;
<span class="kw">let </span><span class="kw-2">mut </span>iter = err.sources();
<span class="macro">assert_eq!</span>(<span class="string">"B"</span>.to_string(), iter.next().unwrap().to_string());
<span class="macro">assert_eq!</span>(<span class="string">"A"</span>.to_string(), iter.next().unwrap().to_string());
<span class="macro">assert!</span>(iter.next().is_none());
<span class="macro">assert!</span>(iter.next().is_none());</code></pre></div></div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-dyn+Error-2" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.93.1/src/alloc/boxed/convert.rs.html#705">Source</a><a href="#impl-dyn+Error-2" class="anchor">§</a><h3 class="code-header">impl dyn <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.downcast" class="method"><span class="rightside"><span class="since" title="Stable since Rust version 1.3.0">1.3.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/alloc/boxed/convert.rs.html#710">Source</a></span><h4 class="code-header">pub fn <a href="#method.downcast" class="fn">downcast</a>&lt;T&gt;(self: <a class="struct" href="https://doc.rust-lang.org/1.93.1/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a>&lt;dyn <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a>&gt;) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.93.1/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;<a class="struct" href="https://doc.rust-lang.org/1.93.1/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a>&lt;T&gt;, <a class="struct" href="https://doc.rust-lang.org/1.93.1/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a>&lt;dyn <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a>&gt;&gt;<div class="where">where
T: <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> + 'static,</div></h4></section></summary><div class="docblock"><p>Attempts to downcast the box to a concrete type.</p>
</div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-dyn+Error+%2B+Send-1" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.93.1/src/alloc/boxed/convert.rs.html#722">Source</a><a href="#impl-dyn+Error+%2B+Send-1" class="anchor">§</a><h3 class="code-header">impl dyn <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> + <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.downcast-1" class="method"><span class="rightside"><span class="since" title="Stable since Rust version 1.3.0">1.3.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/alloc/boxed/convert.rs.html#727">Source</a></span><h4 class="code-header">pub fn <a href="#method.downcast-1" class="fn">downcast</a>&lt;T&gt;(
self: <a class="struct" href="https://doc.rust-lang.org/1.93.1/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a>&lt;dyn <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> + <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a>&gt;,
) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.93.1/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;<a class="struct" href="https://doc.rust-lang.org/1.93.1/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a>&lt;T&gt;, <a class="struct" href="https://doc.rust-lang.org/1.93.1/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a>&lt;dyn <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> + <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a>&gt;&gt;<div class="where">where
T: <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> + 'static,</div></h4></section></summary><div class="docblock"><p>Attempts to downcast the box to a concrete type.</p>
</div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-dyn+Error+%2B+Send+%2B+Sync-1" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.93.1/src/alloc/boxed/convert.rs.html#736">Source</a><a href="#impl-dyn+Error+%2B+Send+%2B+Sync-1" class="anchor">§</a><h3 class="code-header">impl dyn <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> + <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> + <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.downcast-2" class="method"><span class="rightside"><span class="since" title="Stable since Rust version 1.3.0">1.3.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/alloc/boxed/convert.rs.html#741">Source</a></span><h4 class="code-header">pub fn <a href="#method.downcast-2" class="fn">downcast</a>&lt;T&gt;(
self: <a class="struct" href="https://doc.rust-lang.org/1.93.1/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a>&lt;dyn <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> + <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> + <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a>&gt;,
) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.93.1/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;<a class="struct" href="https://doc.rust-lang.org/1.93.1/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a>&lt;T&gt;, <a class="struct" href="https://doc.rust-lang.org/1.93.1/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a>&lt;dyn <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> + <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> + <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a>&gt;&gt;<div class="where">where
T: <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> + 'static,</div></h4></section></summary><div class="docblock"><p>Attempts to downcast the box to a concrete type.</p>
</div></details></div></details></div><h2 id="trait-implementations" class="section-header">Trait Implementations<a href="#trait-implementations" class="anchor">§</a></h2><div id="trait-implementations-list"><details class="toggle implementors-toggle" open><summary><section id="impl-From%3C%26str%3E-for-Box%3Cdyn+Error%3E" class="impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.6.0">1.6.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/alloc/boxed/convert.rs.html#645">Source</a></span><a href="#impl-From%3C%26str%3E-for-Box%3Cdyn+Error%3E" class="anchor">§</a><h3 class="code-header">impl&lt;'a&gt; <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/convert/trait.From.html" title="trait core::convert::From">From</a>&lt;&amp;<a class="primitive" href="https://doc.rust-lang.org/1.93.1/std/primitive.str.html">str</a>&gt; for <a class="struct" href="https://doc.rust-lang.org/1.93.1/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a>&lt;dyn <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> + 'a&gt;</h3><span class="item-info"><div class="stab portability">Available on <strong>non-<code>no_global_oom_handling</code></strong> only.</div></span></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.from-5" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.93.1/src/alloc/boxed/convert.rs.html#659">Source</a><a href="#method.from-5" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.93.1/core/convert/trait.From.html#tymethod.from" class="fn">from</a>(err: &amp;<a class="primitive" href="https://doc.rust-lang.org/1.93.1/std/primitive.str.html">str</a>) -&gt; <a class="struct" href="https://doc.rust-lang.org/1.93.1/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a>&lt;dyn <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> + 'a&gt;</h4></section></summary><div class="docblock"><p>Converts a <a href="https://doc.rust-lang.org/1.93.1/std/primitive.str.html" title="primitive str"><code>str</code></a> into a box of dyn <a href="../de/trait.StdError.html" title="trait serde::de::StdError"><code>Error</code></a>.</p>
<h5 id="examples-7"><a class="doc-anchor" href="#examples-7">§</a>Examples</h5>
<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>std::error::Error;
<span class="kw">let </span>a_str_error = <span class="string">"a str error"</span>;
<span class="kw">let </span>a_boxed_error = Box::&lt;<span class="kw">dyn </span>Error&gt;::from(a_str_error);
<span class="macro">assert!</span>(size_of::&lt;Box&lt;<span class="kw">dyn </span>Error&gt;&gt;() == size_of_val(<span class="kw-2">&amp;</span>a_boxed_error))</code></pre></div></div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-From%3C%26str%3E-for-Box%3Cdyn+Error+%2B+Send+%2B+Sync%3E" class="impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.0.0">1.0.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/alloc/boxed/convert.rs.html#622">Source</a></span><a href="#impl-From%3C%26str%3E-for-Box%3Cdyn+Error+%2B+Send+%2B+Sync%3E" class="anchor">§</a><h3 class="code-header">impl&lt;'a&gt; <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/convert/trait.From.html" title="trait core::convert::From">From</a>&lt;&amp;<a class="primitive" href="https://doc.rust-lang.org/1.93.1/std/primitive.str.html">str</a>&gt; for <a class="struct" href="https://doc.rust-lang.org/1.93.1/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a>&lt;dyn <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> + <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> + <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> + 'a&gt;</h3><span class="item-info"><div class="stab portability">Available on <strong>non-<code>no_global_oom_handling</code></strong> only.</div></span></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.from-4" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.93.1/src/alloc/boxed/convert.rs.html#638">Source</a><a href="#method.from-4" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.93.1/core/convert/trait.From.html#tymethod.from" class="fn">from</a>(err: &amp;<a class="primitive" href="https://doc.rust-lang.org/1.93.1/std/primitive.str.html">str</a>) -&gt; <a class="struct" href="https://doc.rust-lang.org/1.93.1/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a>&lt;dyn <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> + <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> + <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> + 'a&gt;</h4></section></summary><div class="docblock"><p>Converts a <a href="https://doc.rust-lang.org/1.93.1/std/primitive.str.html" title="primitive str"><code>str</code></a> into a box of dyn <a href="../de/trait.StdError.html" title="trait serde::de::StdError"><code>Error</code></a> + <a href="https://doc.rust-lang.org/1.93.1/core/marker/trait.Send.html" title="trait core::marker::Send"><code>Send</code></a> + <a href="https://doc.rust-lang.org/1.93.1/core/marker/trait.Sync.html" title="trait core::marker::Sync"><code>Sync</code></a>.</p>
<h5 id="examples-6"><a class="doc-anchor" href="#examples-6">§</a>Examples</h5>
<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>std::error::Error;
<span class="kw">let </span>a_str_error = <span class="string">"a str error"</span>;
<span class="kw">let </span>a_boxed_error = Box::&lt;<span class="kw">dyn </span>Error + Send + Sync&gt;::from(a_str_error);
<span class="macro">assert!</span>(
size_of::&lt;Box&lt;<span class="kw">dyn </span>Error + Send + Sync&gt;&gt;() == size_of_val(<span class="kw-2">&amp;</span>a_boxed_error))</code></pre></div></div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-From%3CCow%3C'b,+str%3E%3E-for-Box%3Cdyn+Error%3E" class="impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.22.0">1.22.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/alloc/boxed/convert.rs.html#687">Source</a></span><a href="#impl-From%3CCow%3C'b,+str%3E%3E-for-Box%3Cdyn+Error%3E" class="anchor">§</a><h3 class="code-header">impl&lt;'a, 'b&gt; <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/convert/trait.From.html" title="trait core::convert::From">From</a>&lt;<a class="enum" href="https://doc.rust-lang.org/1.93.1/alloc/borrow/enum.Cow.html" title="enum alloc::borrow::Cow">Cow</a>&lt;'b, <a class="primitive" href="https://doc.rust-lang.org/1.93.1/std/primitive.str.html">str</a>&gt;&gt; for <a class="struct" href="https://doc.rust-lang.org/1.93.1/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a>&lt;dyn <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> + 'a&gt;</h3><span class="item-info"><div class="stab portability">Available on <strong>non-<code>no_global_oom_handling</code></strong> only.</div></span></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.from-7" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.93.1/src/alloc/boxed/convert.rs.html#700">Source</a><a href="#method.from-7" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.93.1/core/convert/trait.From.html#tymethod.from" class="fn">from</a>(err: <a class="enum" href="https://doc.rust-lang.org/1.93.1/alloc/borrow/enum.Cow.html" title="enum alloc::borrow::Cow">Cow</a>&lt;'b, <a class="primitive" href="https://doc.rust-lang.org/1.93.1/std/primitive.str.html">str</a>&gt;) -&gt; <a class="struct" href="https://doc.rust-lang.org/1.93.1/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a>&lt;dyn <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> + 'a&gt;</h4></section></summary><div class="docblock"><p>Converts a <a href="https://doc.rust-lang.org/1.93.1/alloc/borrow/enum.Cow.html" title="enum alloc::borrow::Cow"><code>Cow</code></a> into a box of dyn <a href="../de/trait.StdError.html" title="trait serde::de::StdError"><code>Error</code></a>.</p>
<h5 id="examples-9"><a class="doc-anchor" href="#examples-9">§</a>Examples</h5>
<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>std::error::Error;
<span class="kw">use </span>std::borrow::Cow;
<span class="kw">let </span>a_cow_str_error = Cow::from(<span class="string">"a str error"</span>);
<span class="kw">let </span>a_boxed_error = Box::&lt;<span class="kw">dyn </span>Error&gt;::from(a_cow_str_error);
<span class="macro">assert!</span>(size_of::&lt;Box&lt;<span class="kw">dyn </span>Error&gt;&gt;() == size_of_val(<span class="kw-2">&amp;</span>a_boxed_error))</code></pre></div></div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-From%3CCow%3C'b,+str%3E%3E-for-Box%3Cdyn+Error+%2B+Send+%2B+Sync%3E" class="impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.22.0">1.22.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/alloc/boxed/convert.rs.html#666">Source</a></span><a href="#impl-From%3CCow%3C'b,+str%3E%3E-for-Box%3Cdyn+Error+%2B+Send+%2B+Sync%3E" class="anchor">§</a><h3 class="code-header">impl&lt;'a, 'b&gt; <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/convert/trait.From.html" title="trait core::convert::From">From</a>&lt;<a class="enum" href="https://doc.rust-lang.org/1.93.1/alloc/borrow/enum.Cow.html" title="enum alloc::borrow::Cow">Cow</a>&lt;'b, <a class="primitive" href="https://doc.rust-lang.org/1.93.1/std/primitive.str.html">str</a>&gt;&gt; for <a class="struct" href="https://doc.rust-lang.org/1.93.1/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a>&lt;dyn <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> + <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> + <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> + 'a&gt;</h3><span class="item-info"><div class="stab portability">Available on <strong>non-<code>no_global_oom_handling</code></strong> only.</div></span></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.from-6" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.93.1/src/alloc/boxed/convert.rs.html#680">Source</a><a href="#method.from-6" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.93.1/core/convert/trait.From.html#tymethod.from" class="fn">from</a>(err: <a class="enum" href="https://doc.rust-lang.org/1.93.1/alloc/borrow/enum.Cow.html" title="enum alloc::borrow::Cow">Cow</a>&lt;'b, <a class="primitive" href="https://doc.rust-lang.org/1.93.1/std/primitive.str.html">str</a>&gt;) -&gt; <a class="struct" href="https://doc.rust-lang.org/1.93.1/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a>&lt;dyn <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> + <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> + <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> + 'a&gt;</h4></section></summary><div class="docblock"><p>Converts a <a href="https://doc.rust-lang.org/1.93.1/alloc/borrow/enum.Cow.html" title="enum alloc::borrow::Cow"><code>Cow</code></a> into a box of dyn <a href="../de/trait.StdError.html" title="trait serde::de::StdError"><code>Error</code></a> + <a href="https://doc.rust-lang.org/1.93.1/core/marker/trait.Send.html" title="trait core::marker::Send"><code>Send</code></a> + <a href="https://doc.rust-lang.org/1.93.1/core/marker/trait.Sync.html" title="trait core::marker::Sync"><code>Sync</code></a>.</p>
<h5 id="examples-8"><a class="doc-anchor" href="#examples-8">§</a>Examples</h5>
<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>std::error::Error;
<span class="kw">use </span>std::borrow::Cow;
<span class="kw">let </span>a_cow_str_error = Cow::from(<span class="string">"a str error"</span>);
<span class="kw">let </span>a_boxed_error = Box::&lt;<span class="kw">dyn </span>Error + Send + Sync&gt;::from(a_cow_str_error);
<span class="macro">assert!</span>(
size_of::&lt;Box&lt;<span class="kw">dyn </span>Error + Send + Sync&gt;&gt;() == size_of_val(<span class="kw-2">&amp;</span>a_boxed_error))</code></pre></div></div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-From%3CE%3E-for-Box%3Cdyn+Error%3E" class="impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.0.0">1.0.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/alloc/boxed/convert.rs.html#493">Source</a></span><a href="#impl-From%3CE%3E-for-Box%3Cdyn+Error%3E" class="anchor">§</a><h3 class="code-header">impl&lt;'a, E&gt; <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/convert/trait.From.html" title="trait core::convert::From">From</a>&lt;E&gt; for <a class="struct" href="https://doc.rust-lang.org/1.93.1/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a>&lt;dyn <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> + 'a&gt;<div class="where">where
E: <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> + 'a,</div></h3><span class="item-info"><div class="stab portability">Available on <strong>non-<code>no_global_oom_handling</code></strong> only.</div></span></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.from" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.93.1/src/alloc/boxed/convert.rs.html#518">Source</a><a href="#method.from" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.93.1/core/convert/trait.From.html#tymethod.from" class="fn">from</a>(err: E) -&gt; <a class="struct" href="https://doc.rust-lang.org/1.93.1/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a>&lt;dyn <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> + 'a&gt;</h4></section></summary><div class="docblock"><p>Converts a type of <a href="../de/trait.StdError.html" title="trait serde::de::StdError"><code>Error</code></a> into a box of dyn <a href="../de/trait.StdError.html" title="trait serde::de::StdError"><code>Error</code></a>.</p>
<h5 id="examples-2"><a class="doc-anchor" href="#examples-2">§</a>Examples</h5>
<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>std::error::Error;
<span class="kw">use </span>std::fmt;
<span class="attr">#[derive(Debug)]
</span><span class="kw">struct </span>AnError;
<span class="kw">impl </span>fmt::Display <span class="kw">for </span>AnError {
<span class="kw">fn </span>fmt(<span class="kw-2">&amp;</span><span class="self">self</span>, f: <span class="kw-2">&amp;mut </span>fmt::Formatter&lt;<span class="lifetime">'_</span>&gt;) -&gt; fmt::Result {
<span class="macro">write!</span>(f, <span class="string">"An error"</span>)
}
}
<span class="kw">impl </span>Error <span class="kw">for </span>AnError {}
<span class="kw">let </span>an_error = AnError;
<span class="macro">assert!</span>(<span class="number">0 </span>== size_of_val(<span class="kw-2">&amp;</span>an_error));
<span class="kw">let </span>a_boxed_error = Box::&lt;<span class="kw">dyn </span>Error&gt;::from(an_error);
<span class="macro">assert!</span>(size_of::&lt;Box&lt;<span class="kw">dyn </span>Error&gt;&gt;() == size_of_val(<span class="kw-2">&amp;</span>a_boxed_error))</code></pre></div></div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-From%3CE%3E-for-Box%3Cdyn+Error+%2B+Send+%2B+Sync%3E" class="impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.0.0">1.0.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/alloc/boxed/convert.rs.html#525">Source</a></span><a href="#impl-From%3CE%3E-for-Box%3Cdyn+Error+%2B+Send+%2B+Sync%3E" class="anchor">§</a><h3 class="code-header">impl&lt;'a, E&gt; <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/convert/trait.From.html" title="trait core::convert::From">From</a>&lt;E&gt; for <a class="struct" href="https://doc.rust-lang.org/1.93.1/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a>&lt;dyn <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> + <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> + <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> + 'a&gt;<div class="where">where
E: <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> + <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> + <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> + 'a,</div></h3><span class="item-info"><div class="stab portability">Available on <strong>non-<code>no_global_oom_handling</code></strong> only.</div></span></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.from-1" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.93.1/src/alloc/boxed/convert.rs.html#556">Source</a><a href="#method.from-1" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.93.1/core/convert/trait.From.html#tymethod.from" class="fn">from</a>(err: E) -&gt; <a class="struct" href="https://doc.rust-lang.org/1.93.1/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a>&lt;dyn <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> + <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> + <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> + 'a&gt;</h4></section></summary><div class="docblock"><p>Converts a type of <a href="../de/trait.StdError.html" title="trait serde::de::StdError"><code>Error</code></a> + <a href="https://doc.rust-lang.org/1.93.1/core/marker/trait.Send.html" title="trait core::marker::Send"><code>Send</code></a> + <a href="https://doc.rust-lang.org/1.93.1/core/marker/trait.Sync.html" title="trait core::marker::Sync"><code>Sync</code></a> into a box of
dyn <a href="../de/trait.StdError.html" title="trait serde::de::StdError"><code>Error</code></a> + <a href="https://doc.rust-lang.org/1.93.1/core/marker/trait.Send.html" title="trait core::marker::Send"><code>Send</code></a> + <a href="https://doc.rust-lang.org/1.93.1/core/marker/trait.Sync.html" title="trait core::marker::Sync"><code>Sync</code></a>.</p>
<h5 id="examples-3"><a class="doc-anchor" href="#examples-3">§</a>Examples</h5>
<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>std::error::Error;
<span class="kw">use </span>std::fmt;
<span class="attr">#[derive(Debug)]
</span><span class="kw">struct </span>AnError;
<span class="kw">impl </span>fmt::Display <span class="kw">for </span>AnError {
<span class="kw">fn </span>fmt(<span class="kw-2">&amp;</span><span class="self">self</span>, f: <span class="kw-2">&amp;mut </span>fmt::Formatter&lt;<span class="lifetime">'_</span>&gt;) -&gt; fmt::Result {
<span class="macro">write!</span>(f, <span class="string">"An error"</span>)
}
}
<span class="kw">impl </span>Error <span class="kw">for </span>AnError {}
<span class="kw">unsafe impl </span>Send <span class="kw">for </span>AnError {}
<span class="kw">unsafe impl </span>Sync <span class="kw">for </span>AnError {}
<span class="kw">let </span>an_error = AnError;
<span class="macro">assert!</span>(<span class="number">0 </span>== size_of_val(<span class="kw-2">&amp;</span>an_error));
<span class="kw">let </span>a_boxed_error = Box::&lt;<span class="kw">dyn </span>Error + Send + Sync&gt;::from(an_error);
<span class="macro">assert!</span>(
size_of::&lt;Box&lt;<span class="kw">dyn </span>Error + Send + Sync&gt;&gt;() == size_of_val(<span class="kw-2">&amp;</span>a_boxed_error))</code></pre></div></div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-From%3CString%3E-for-Box%3Cdyn+Error%3E" class="impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.6.0">1.6.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/alloc/boxed/convert.rs.html#601">Source</a></span><a href="#impl-From%3CString%3E-for-Box%3Cdyn+Error%3E" class="anchor">§</a><h3 class="code-header">impl&lt;'a&gt; <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/convert/trait.From.html" title="trait core::convert::From">From</a>&lt;<a class="struct" href="https://doc.rust-lang.org/1.93.1/alloc/string/struct.String.html" title="struct alloc::string::String">String</a>&gt; for <a class="struct" href="https://doc.rust-lang.org/1.93.1/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a>&lt;dyn <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> + 'a&gt;</h3><span class="item-info"><div class="stab portability">Available on <strong>non-<code>no_global_oom_handling</code></strong> only.</div></span></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.from-3" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.93.1/src/alloc/boxed/convert.rs.html#613">Source</a><a href="#method.from-3" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.93.1/core/convert/trait.From.html#tymethod.from" class="fn">from</a>(str_err: <a class="struct" href="https://doc.rust-lang.org/1.93.1/alloc/string/struct.String.html" title="struct alloc::string::String">String</a>) -&gt; <a class="struct" href="https://doc.rust-lang.org/1.93.1/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a>&lt;dyn <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> + 'a&gt;</h4></section></summary><div class="docblock"><p>Converts a <a href="https://doc.rust-lang.org/1.93.1/alloc/string/struct.String.html" title="struct alloc::string::String"><code>String</code></a> into a box of dyn <a href="../de/trait.StdError.html" title="trait serde::de::StdError"><code>Error</code></a>.</p>
<h5 id="examples-5"><a class="doc-anchor" href="#examples-5">§</a>Examples</h5>
<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>std::error::Error;
<span class="kw">let </span>a_string_error = <span class="string">"a string error"</span>.to_string();
<span class="kw">let </span>a_boxed_error = Box::&lt;<span class="kw">dyn </span>Error&gt;::from(a_string_error);
<span class="macro">assert!</span>(size_of::&lt;Box&lt;<span class="kw">dyn </span>Error&gt;&gt;() == size_of_val(<span class="kw-2">&amp;</span>a_boxed_error))</code></pre></div></div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-From%3CString%3E-for-Box%3Cdyn+Error+%2B+Send+%2B+Sync%3E" class="impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.0.0">1.0.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/alloc/boxed/convert.rs.html#563">Source</a></span><a href="#impl-From%3CString%3E-for-Box%3Cdyn+Error+%2B+Send+%2B+Sync%3E" class="anchor">§</a><h3 class="code-header">impl&lt;'a&gt; <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/convert/trait.From.html" title="trait core::convert::From">From</a>&lt;<a class="struct" href="https://doc.rust-lang.org/1.93.1/alloc/string/struct.String.html" title="struct alloc::string::String">String</a>&gt; for <a class="struct" href="https://doc.rust-lang.org/1.93.1/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a>&lt;dyn <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> + <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> + <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> + 'a&gt;</h3><span class="item-info"><div class="stab portability">Available on <strong>non-<code>no_global_oom_handling</code></strong> only.</div></span></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.from-2" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.93.1/src/alloc/boxed/convert.rs.html#577">Source</a><a href="#method.from-2" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.93.1/core/convert/trait.From.html#tymethod.from" class="fn">from</a>(err: <a class="struct" href="https://doc.rust-lang.org/1.93.1/alloc/string/struct.String.html" title="struct alloc::string::String">String</a>) -&gt; <a class="struct" href="https://doc.rust-lang.org/1.93.1/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a>&lt;dyn <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> + <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> + <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> + 'a&gt;</h4></section></summary><div class="docblock"><p>Converts a <a href="https://doc.rust-lang.org/1.93.1/alloc/string/struct.String.html" title="struct alloc::string::String"><code>String</code></a> into a box of dyn <a href="../de/trait.StdError.html" title="trait serde::de::StdError"><code>Error</code></a> + <a href="https://doc.rust-lang.org/1.93.1/core/marker/trait.Send.html" title="trait core::marker::Send"><code>Send</code></a> + <a href="https://doc.rust-lang.org/1.93.1/core/marker/trait.Sync.html" title="trait core::marker::Sync"><code>Sync</code></a>.</p>
<h5 id="examples-4"><a class="doc-anchor" href="#examples-4">§</a>Examples</h5>
<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>std::error::Error;
<span class="kw">let </span>a_string_error = <span class="string">"a string error"</span>.to_string();
<span class="kw">let </span>a_boxed_error = Box::&lt;<span class="kw">dyn </span>Error + Send + Sync&gt;::from(a_string_error);
<span class="macro">assert!</span>(
size_of::&lt;Box&lt;<span class="kw">dyn </span>Error + Send + Sync&gt;&gt;() == size_of_val(<span class="kw-2">&amp;</span>a_boxed_error))</code></pre></div></div></details></div></details></div><h2 id="implementors" class="section-header">Implementors<a href="#implementors" class="anchor">§</a></h2><div id="implementors-list"><section id="impl-Error-for-%26str" class="impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.65.0">1.65.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/core/str/mod.rs.html#3216">Source</a></span><a href="#impl-Error-for-%26str" class="anchor">§</a><h3 class="code-header">impl !<a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> for &amp;<a class="primitive" href="https://doc.rust-lang.org/1.93.1/std/primitive.str.html">str</a></h3></section><section id="impl-Error-for-Infallible" class="impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.8.0">1.8.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/core/convert/mod.rs.html#955">Source</a></span><a href="#impl-Error-for-Infallible" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> for <a class="enum" href="https://doc.rust-lang.org/1.93.1/core/convert/enum.Infallible.html" title="enum core::convert::Infallible">Infallible</a></h3></section><section id="impl-Error-for-FromBytesWithNulError" class="impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.17.0">1.17.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/core/ffi/c_str.rs.html#150">Source</a></span><a href="#impl-Error-for-FromBytesWithNulError" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> for <a class="enum" href="https://doc.rust-lang.org/1.93.1/core/ffi/c_str/enum.FromBytesWithNulError.html" title="enum core::ffi::c_str::FromBytesWithNulError">FromBytesWithNulError</a></h3></section><section id="impl-Error-for-GetDisjointMutError" class="impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.86.0">1.86.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/core/error.rs.html#1084">Source</a></span><a href="#impl-Error-for-GetDisjointMutError" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> for <a class="enum" href="https://doc.rust-lang.org/1.93.1/core/slice/enum.GetDisjointMutError.html" title="enum core::slice::GetDisjointMutError">GetDisjointMutError</a></h3></section><section id="impl-Error-for-VarError" class="impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.0.0">1.0.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/std/env.rs.html#299">Source</a></span><a href="#impl-Error-for-VarError" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> for <a class="enum" href="https://doc.rust-lang.org/1.93.1/std/env/enum.VarError.html" title="enum std::env::VarError">VarError</a></h3></section><section id="impl-Error-for-TryLockError" class="impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.89.0">1.89.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/std/fs.rs.html#472">Source</a></span><a href="#impl-Error-for-TryLockError" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> for std::fs::<a class="enum" href="https://doc.rust-lang.org/1.93.1/std/fs/enum.TryLockError.html" title="enum std::fs::TryLockError">TryLockError</a></h3></section><section id="impl-Error-for-RecvTimeoutError" class="impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.15.0">1.15.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/std/sync/mpsc.rs.html#1198">Source</a></span><a href="#impl-Error-for-RecvTimeoutError" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> for <a class="enum" href="https://doc.rust-lang.org/1.93.1/std/sync/mpsc/enum.RecvTimeoutError.html" title="enum std::sync::mpsc::RecvTimeoutError">RecvTimeoutError</a></h3></section><section id="impl-Error-for-TryRecvError" class="impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.0.0">1.0.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/std/sync/mpsc.rs.html#1171">Source</a></span><a href="#impl-Error-for-TryRecvError" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> for <a class="enum" href="https://doc.rust-lang.org/1.93.1/std/sync/mpsc/enum.TryRecvError.html" title="enum std::sync::mpsc::TryRecvError">TryRecvError</a></h3></section><section id="impl-Error-for-!" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.93.1/src/core/error.rs.html#222">Source</a><a href="#impl-Error-for-!" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> for <a class="primitive" href="https://doc.rust-lang.org/1.93.1/std/primitive.never.html">!</a></h3></section><section id="impl-Error-for-Error" class="impl"><a class="src rightside" href="../../src/serde_core/de/value.rs.html#117">Source</a><a href="#impl-Error-for-Error" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> for serde::de::value::<a class="struct" href="../de/value/struct.Error.html" title="struct serde::de::value::Error">Error</a></h3><span class="item-info"><div class="stab portability">Available on <strong>crate feature <code>std</code></strong> only.</div></span></section><section id="impl-Error-for-UnorderedKeyError" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.93.1/src/alloc/collections/btree/map.rs.html#3570">Source</a><a href="#impl-Error-for-UnorderedKeyError" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> for <a class="struct" href="https://doc.rust-lang.org/1.93.1/alloc/collections/btree/map/struct.UnorderedKeyError.html" title="struct alloc::collections::btree::map::UnorderedKeyError">UnorderedKeyError</a></h3></section><section id="impl-Error-for-TryReserveError" class="impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.57.0">1.57.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/alloc/collections/mod.rs.html#181">Source</a></span><a href="#impl-Error-for-TryReserveError" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> for <a class="struct" href="https://doc.rust-lang.org/1.93.1/alloc/collections/struct.TryReserveError.html" title="struct alloc::collections::TryReserveError">TryReserveError</a></h3></section><section id="impl-Error-for-FromVecWithNulError" class="impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.58.0">1.58.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/alloc/ffi/c_str.rs.html#1286">Source</a></span><a href="#impl-Error-for-FromVecWithNulError" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> for <a class="struct" href="https://doc.rust-lang.org/1.93.1/alloc/ffi/c_str/struct.FromVecWithNulError.html" title="struct alloc::ffi::c_str::FromVecWithNulError">FromVecWithNulError</a></h3></section><section id="impl-Error-for-IntoStringError" class="impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.7.0">1.7.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/alloc/ffi/c_str.rs.html#1289">Source</a></span><a href="#impl-Error-for-IntoStringError" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> for <a class="struct" href="https://doc.rust-lang.org/1.93.1/alloc/ffi/c_str/struct.IntoStringError.html" title="struct alloc::ffi::c_str::IntoStringError">IntoStringError</a></h3></section><section id="impl-Error-for-NulError" class="impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.0.0">1.0.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/alloc/ffi/c_str.rs.html#1283">Source</a></span><a href="#impl-Error-for-NulError" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> for <a class="struct" href="https://doc.rust-lang.org/1.93.1/alloc/ffi/c_str/struct.NulError.html" title="struct alloc::ffi::c_str::NulError">NulError</a></h3></section><section id="impl-Error-for-FromUtf8Error" class="impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.0.0">1.0.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/alloc/string.rs.html#2340">Source</a></span><a href="#impl-Error-for-FromUtf8Error" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> for <a class="struct" href="https://doc.rust-lang.org/1.93.1/alloc/string/struct.FromUtf8Error.html" title="struct alloc::string::FromUtf8Error">FromUtf8Error</a></h3></section><section id="impl-Error-for-FromUtf16Error" class="impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.0.0">1.0.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/alloc/string.rs.html#2343">Source</a></span><a href="#impl-Error-for-FromUtf16Error" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> for <a class="struct" href="https://doc.rust-lang.org/1.93.1/alloc/string/struct.FromUtf16Error.html" title="struct alloc::string::FromUtf16Error">FromUtf16Error</a></h3></section><section id="impl-Error-for-LayoutError" class="impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.28.0">1.28.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/core/alloc/layout.rs.html#537">Source</a></span><a href="#impl-Error-for-LayoutError" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> for <a class="struct" href="https://doc.rust-lang.org/1.93.1/core/alloc/layout/struct.LayoutError.html" title="struct core::alloc::layout::LayoutError">LayoutError</a></h3></section><section id="impl-Error-for-AllocError" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.93.1/src/core/alloc/mod.rs.html#39">Source</a><a href="#impl-Error-for-AllocError" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> for <a class="struct" href="https://doc.rust-lang.org/1.93.1/core/alloc/struct.AllocError.html" title="struct core::alloc::AllocError">AllocError</a></h3></section><section id="impl-Error-for-TryFromSliceError" class="impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.34.0">1.34.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/core/array/mod.rs.html#193">Source</a></span><a href="#impl-Error-for-TryFromSliceError" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> for <a class="struct" href="https://doc.rust-lang.org/1.93.1/core/array/struct.TryFromSliceError.html" title="struct core::array::TryFromSliceError">TryFromSliceError</a></h3></section><section id="impl-Error-for-BorrowError" class="impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.13.0">1.13.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/core/error.rs.html#1069">Source</a></span><a href="#impl-Error-for-BorrowError" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> for <a class="struct" href="https://doc.rust-lang.org/1.93.1/core/cell/struct.BorrowError.html" title="struct core::cell::BorrowError">BorrowError</a></h3></section><section id="impl-Error-for-BorrowMutError" class="impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.13.0">1.13.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/core/error.rs.html#1072">Source</a></span><a href="#impl-Error-for-BorrowMutError" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> for <a class="struct" href="https://doc.rust-lang.org/1.93.1/core/cell/struct.BorrowMutError.html" title="struct core::cell::BorrowMutError">BorrowMutError</a></h3></section><section id="impl-Error-for-CharTryFromError" class="impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.34.0">1.34.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/core/error.rs.html#1075">Source</a></span><a href="#impl-Error-for-CharTryFromError" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> for <a class="struct" href="https://doc.rust-lang.org/1.93.1/core/char/convert/struct.CharTryFromError.html" title="struct core::char::convert::CharTryFromError">CharTryFromError</a></h3></section><section id="impl-Error-for-ParseCharError" class="impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.20.0">1.20.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/core/char/convert.rs.html#206">Source</a></span><a href="#impl-Error-for-ParseCharError" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> for <a class="struct" href="https://doc.rust-lang.org/1.93.1/core/char/convert/struct.ParseCharError.html" title="struct core::char::convert::ParseCharError">ParseCharError</a></h3></section><section id="impl-Error-for-DecodeUtf16Error" class="impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.9.0">1.9.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/core/char/decode.rs.html#129">Source</a></span><a href="#impl-Error-for-DecodeUtf16Error" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> for <a class="struct" href="https://doc.rust-lang.org/1.93.1/core/char/decode/struct.DecodeUtf16Error.html" title="struct core::char::decode::DecodeUtf16Error">DecodeUtf16Error</a></h3></section><section id="impl-Error-for-TryFromCharError" class="impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.59.0">1.59.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/core/char/mod.rs.html#605">Source</a></span><a href="#impl-Error-for-TryFromCharError" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> for <a class="struct" href="https://doc.rust-lang.org/1.93.1/core/char/struct.TryFromCharError.html" title="struct core::char::TryFromCharError">TryFromCharError</a></h3></section><section id="impl-Error-for-FromBytesUntilNulError" class="impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.69.0">1.69.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/core/error.rs.html#1081">Source</a></span><a href="#impl-Error-for-FromBytesUntilNulError" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> for <a class="struct" href="https://doc.rust-lang.org/1.93.1/core/ffi/c_str/struct.FromBytesUntilNulError.html" title="struct core::ffi::c_str::FromBytesUntilNulError">FromBytesUntilNulError</a></h3></section><section id="impl-Error-for-Error-1" class="impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.11.0">1.11.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/core/error.rs.html#1066">Source</a></span><a href="#impl-Error-for-Error-1" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> for core::fmt::<a class="struct" href="https://doc.rust-lang.org/1.93.1/core/fmt/struct.Error.html" title="struct core::fmt::Error">Error</a></h3></section><section id="impl-Error-for-AddrParseError" class="impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.4.0">1.4.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/core/net/parser.rs.html#514">Source</a></span><a href="#impl-Error-for-AddrParseError" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> for <a class="struct" href="https://doc.rust-lang.org/1.93.1/core/net/parser/struct.AddrParseError.html" title="struct core::net::parser::AddrParseError">AddrParseError</a></h3></section><section id="impl-Error-for-ParseFloatError" class="impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.0.0">1.0.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/core/num/dec2flt/mod.rs.html#222">Source</a></span><a href="#impl-Error-for-ParseFloatError" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> for <a class="struct" href="https://doc.rust-lang.org/1.93.1/core/num/dec2flt/struct.ParseFloatError.html" title="struct core::num::dec2flt::ParseFloatError">ParseFloatError</a></h3></section><section id="impl-Error-for-ParseIntError" class="impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.0.0">1.0.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/core/num/error.rs.html#137">Source</a></span><a href="#impl-Error-for-ParseIntError" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> for <a class="struct" href="https://doc.rust-lang.org/1.93.1/core/num/error/struct.ParseIntError.html" title="struct core::num::error::ParseIntError">ParseIntError</a></h3></section><section id="impl-Error-for-TryFromIntError" class="impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.34.0">1.34.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/core/num/error.rs.html#20">Source</a></span><a href="#impl-Error-for-TryFromIntError" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> for <a class="struct" href="https://doc.rust-lang.org/1.93.1/core/num/error/struct.TryFromIntError.html" title="struct core::num::error::TryFromIntError">TryFromIntError</a></h3></section><section id="impl-Error-for-ParseBoolError" class="impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.0.0">1.0.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/core/str/error.rs.html#145">Source</a></span><a href="#impl-Error-for-ParseBoolError" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> for <a class="struct" href="https://doc.rust-lang.org/1.93.1/core/str/error/struct.ParseBoolError.html" title="struct core::str::error::ParseBoolError">ParseBoolError</a></h3></section><section id="impl-Error-for-Utf8Error" class="impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.0.0">1.0.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/core/str/error.rs.html#127">Source</a></span><a href="#impl-Error-for-Utf8Error" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> for <a class="struct" href="https://doc.rust-lang.org/1.93.1/core/str/error/struct.Utf8Error.html" title="struct core::str::error::Utf8Error">Utf8Error</a></h3></section><section id="impl-Error-for-TryFromFloatSecsError" class="impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.66.0">1.66.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/core/error.rs.html#1078">Source</a></span><a href="#impl-Error-for-TryFromFloatSecsError" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> for <a class="struct" href="https://doc.rust-lang.org/1.93.1/core/time/struct.TryFromFloatSecsError.html" title="struct core::time::TryFromFloatSecsError">TryFromFloatSecsError</a></h3></section><section id="impl-Error-for-JoinPathsError" class="impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.0.0">1.0.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/std/env.rs.html#593">Source</a></span><a href="#impl-Error-for-JoinPathsError" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> for <a class="struct" href="https://doc.rust-lang.org/1.93.1/std/env/struct.JoinPathsError.html" title="struct std::env::JoinPathsError">JoinPathsError</a></h3></section><section id="impl-Error-for-WriterPanicked" class="impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.56.0">1.56.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/std/io/buffered/bufwriter.rs.html#498">Source</a></span><a href="#impl-Error-for-WriterPanicked" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> for <a class="struct" href="https://doc.rust-lang.org/1.93.1/std/io/buffered/bufwriter/struct.WriterPanicked.html" title="struct std::io::buffered::bufwriter::WriterPanicked">WriterPanicked</a></h3></section><section id="impl-Error-for-Error-2" class="impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.0.0">1.0.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/std/io/error.rs.html#1054">Source</a></span><a href="#impl-Error-for-Error-2" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> for std::io::error::<a class="struct" href="https://doc.rust-lang.org/1.93.1/std/io/error/struct.Error.html" title="struct std::io::error::Error">Error</a></h3></section><section id="impl-Error-for-NormalizeError" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.93.1/src/std/path.rs.html#3919">Source</a><a href="#impl-Error-for-NormalizeError" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> for <a class="struct" href="https://doc.rust-lang.org/1.93.1/std/path/struct.NormalizeError.html" title="struct std::path::NormalizeError">NormalizeError</a></h3></section><section id="impl-Error-for-StripPrefixError" class="impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.7.0">1.7.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/std/path.rs.html#3910">Source</a></span><a href="#impl-Error-for-StripPrefixError" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> for <a class="struct" href="https://doc.rust-lang.org/1.93.1/std/path/struct.StripPrefixError.html" title="struct std::path::StripPrefixError">StripPrefixError</a></h3></section><section id="impl-Error-for-ExitStatusError" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.93.1/src/std/process.rs.html#2048">Source</a><a href="#impl-Error-for-ExitStatusError" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> for <a class="struct" href="https://doc.rust-lang.org/1.93.1/std/process/struct.ExitStatusError.html" title="struct std::process::ExitStatusError">ExitStatusError</a></h3></section><section id="impl-Error-for-RecvError" class="impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.0.0">1.0.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/std/sync/mpsc.rs.html#1158">Source</a></span><a href="#impl-Error-for-RecvError" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> for <a class="struct" href="https://doc.rust-lang.org/1.93.1/std/sync/mpsc/struct.RecvError.html" title="struct std::sync::mpsc::RecvError">RecvError</a></h3></section><section id="impl-Error-for-AccessError" class="impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.26.0">1.26.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/std/thread/local.rs.html#428">Source</a></span><a href="#impl-Error-for-AccessError" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> for <a class="struct" href="https://doc.rust-lang.org/1.93.1/std/thread/local/struct.AccessError.html" title="struct std::thread::local::AccessError">AccessError</a></h3></section><section id="impl-Error-for-SystemTimeError" class="impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.8.0">1.8.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/std/time.rs.html#708">Source</a></span><a href="#impl-Error-for-SystemTimeError" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> for <a class="struct" href="https://doc.rust-lang.org/1.93.1/std/time/struct.SystemTimeError.html" title="struct std::time::SystemTimeError">SystemTimeError</a></h3></section><section id="impl-Error-for-OccupiedError%3C'a,+K,+V%3E" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.93.1/src/alloc/collections/btree/map/entry.rs.html#141-142">Source</a><a href="#impl-Error-for-OccupiedError%3C'a,+K,+V%3E" class="anchor">§</a><h3 class="code-header">impl&lt;'a, K, V&gt; <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> for alloc::collections::btree::map::entry::<a class="struct" href="https://doc.rust-lang.org/1.93.1/alloc/collections/btree/map/entry/struct.OccupiedError.html" title="struct alloc::collections::btree::map::entry::OccupiedError">OccupiedError</a>&lt;'a, K, V&gt;<div class="where">where
K: <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a> + <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/cmp/trait.Ord.html" title="trait core::cmp::Ord">Ord</a>,
V: <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a>,</div></h3></section><section id="impl-Error-for-OccupiedError%3C'a,+K,+V%3E-1" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.93.1/src/std/collections/hash/map.rs.html#1879">Source</a><a href="#impl-Error-for-OccupiedError%3C'a,+K,+V%3E-1" class="anchor">§</a><h3 class="code-header">impl&lt;'a, K, V&gt; <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> for std::collections::hash::map::<a class="struct" href="https://doc.rust-lang.org/1.93.1/std/collections/hash/map/struct.OccupiedError.html" title="struct std::collections::hash::map::OccupiedError">OccupiedError</a>&lt;'a, K, V&gt;<div class="where">where
K: <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a>,
V: <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a>,</div></h3></section><section id="impl-Error-for-%26T" class="impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.51.0">1.51.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/core/error.rs.html#1050">Source</a></span><a href="#impl-Error-for-%26T" class="anchor">§</a><h3 class="code-header">impl&lt;'a, T&gt; <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> for <a class="primitive" href="https://doc.rust-lang.org/1.93.1/std/primitive.reference.html">&amp;'a T</a><div class="where">where
T: <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> + ?<a class="trait" href="https://doc.rust-lang.org/1.93.1/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h3></section><section id="impl-Error-for-Box%3CE%3E" class="impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.8.0">1.8.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/alloc/boxed.rs.html#2351">Source</a></span><a href="#impl-Error-for-Box%3CE%3E" class="anchor">§</a><h3 class="code-header">impl&lt;E&gt; <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> for <a class="struct" href="https://doc.rust-lang.org/1.93.1/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a>&lt;E&gt;<div class="where">where
E: <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a>,</div></h3></section><section id="impl-Error-for-SendTimeoutError%3CT%3E" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.93.1/src/std/sync/mpmc/error.rs.html#40">Source</a><a href="#impl-Error-for-SendTimeoutError%3CT%3E" class="anchor">§</a><h3 class="code-header">impl&lt;T&gt; <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> for <a class="enum" href="https://doc.rust-lang.org/1.93.1/std/sync/mpmc/error/enum.SendTimeoutError.html" title="enum std::sync::mpmc::error::SendTimeoutError">SendTimeoutError</a>&lt;T&gt;</h3></section><section id="impl-Error-for-TrySendError%3CT%3E" class="impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.0.0">1.0.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/std/sync/mpsc.rs.html#1134">Source</a></span><a href="#impl-Error-for-TrySendError%3CT%3E" class="anchor">§</a><h3 class="code-header">impl&lt;T&gt; <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> for <a class="enum" href="https://doc.rust-lang.org/1.93.1/std/sync/mpsc/enum.TrySendError.html" title="enum std::sync::mpsc::TrySendError">TrySendError</a>&lt;T&gt;</h3></section><section id="impl-Error-for-TryLockError%3CT%3E" class="impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.0.0">1.0.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/std/sync/poison.rs.html#367">Source</a></span><a href="#impl-Error-for-TryLockError%3CT%3E" class="anchor">§</a><h3 class="code-header">impl&lt;T&gt; <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> for std::sync::poison::<a class="enum" href="https://doc.rust-lang.org/1.93.1/std/sync/poison/enum.TryLockError.html" title="enum std::sync::poison::TryLockError">TryLockError</a>&lt;T&gt;</h3></section><section id="impl-Error-for-ThinBox%3CT%3E" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.93.1/src/alloc/boxed/thin.rs.html#428">Source</a><a href="#impl-Error-for-ThinBox%3CT%3E" class="anchor">§</a><h3 class="code-header">impl&lt;T&gt; <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> for <a class="struct" href="https://doc.rust-lang.org/1.93.1/alloc/boxed/thin/struct.ThinBox.html" title="struct alloc::boxed::thin::ThinBox">ThinBox</a>&lt;T&gt;<div class="where">where
T: <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> + ?<a class="trait" href="https://doc.rust-lang.org/1.93.1/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h3></section><section id="impl-Error-for-Arc%3CT%3E" class="impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.52.0">1.52.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/alloc/sync.rs.html#4297">Source</a></span><a href="#impl-Error-for-Arc%3CT%3E" class="anchor">§</a><h3 class="code-header">impl&lt;T&gt; <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> for <a class="struct" href="https://doc.rust-lang.org/1.93.1/alloc/sync/struct.Arc.html" title="struct alloc::sync::Arc">Arc</a>&lt;T&gt;<div class="where">where
T: <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> + ?<a class="trait" href="https://doc.rust-lang.org/1.93.1/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h3></section><section id="impl-Error-for-SendError%3CT%3E" class="impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.0.0">1.0.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/std/sync/mpsc.rs.html#1111">Source</a></span><a href="#impl-Error-for-SendError%3CT%3E" class="anchor">§</a><h3 class="code-header">impl&lt;T&gt; <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> for <a class="struct" href="https://doc.rust-lang.org/1.93.1/std/sync/mpsc/struct.SendError.html" title="struct std::sync::mpsc::SendError">SendError</a>&lt;T&gt;</h3></section><section id="impl-Error-for-PoisonError%3CT%3E" class="impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.0.0">1.0.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/std/sync/poison.rs.html#260">Source</a></span><a href="#impl-Error-for-PoisonError%3CT%3E" class="anchor">§</a><h3 class="code-header">impl&lt;T&gt; <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> for <a class="struct" href="https://doc.rust-lang.org/1.93.1/std/sync/poison/struct.PoisonError.html" title="struct std::sync::poison::PoisonError">PoisonError</a>&lt;T&gt;</h3></section><section id="impl-Error-for-IntoInnerError%3CW%3E" class="impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.0.0">1.0.0</span> · <a class="src" href="https://doc.rust-lang.org/1.93.1/src/std/io/buffered/mod.rs.html#182">Source</a></span><a href="#impl-Error-for-IntoInnerError%3CW%3E" class="anchor">§</a><h3 class="code-header">impl&lt;W&gt; <a class="trait" href="../de/trait.StdError.html" title="trait serde::de::StdError">Error</a> for <a class="struct" href="https://doc.rust-lang.org/1.93.1/std/io/buffered/struct.IntoInnerError.html" title="struct std::io::buffered::IntoInnerError">IntoInnerError</a>&lt;W&gt;<div class="where">where
W: <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> + <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a>,</div></h3></section></div><script src="../../trait.impl/core/error/trait.Error.js" data-ignore-extern-crates="std,core,alloc,serde_core" async></script><script type="text/json" id="notable-traits-data">{"Source<'_>":"<h3>Notable traits for <code><a class=\"struct\" href=\"https://doc.rust-lang.org/1.93.1/core/error/struct.Source.html\" title=\"struct core::error::Source\">Source</a>&lt;'a&gt;</code></h3><pre><code><div class=\"where\">impl&lt;'a&gt; <a class=\"trait\" href=\"https://doc.rust-lang.org/1.93.1/core/iter/traits/iterator/trait.Iterator.html\" title=\"trait core::iter::traits::iterator::Iterator\">Iterator</a> for <a class=\"struct\" href=\"https://doc.rust-lang.org/1.93.1/core/error/struct.Source.html\" title=\"struct core::error::Source\">Source</a>&lt;'a&gt;</div><div class=\"where\"> type <a href=\"https://doc.rust-lang.org/1.93.1/core/iter/traits/iterator/trait.Iterator.html#associatedtype.Item\" class=\"associatedtype\">Item</a> = &amp;'a (dyn <a class=\"trait\" href=\"../de/trait.StdError.html\" title=\"trait serde::de::StdError\">Error</a> + 'static);</div>"}</script></section></div></main></body></html>
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