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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="A `Subscriber` composed of a `Subscriber` wrapped by one or more `Layer`s."><title>Layered in tracing_subscriber::layer - Rust</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/SourceSerif4-Regular-46f98efaafac5295.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/FiraSans-Regular-018c141bf0843ffd.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/FiraSans-Medium-8f9a781e4970d388.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/SourceCodePro-Regular-562dcc5011b6de7d.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/SourceCodePro-Semibold-d899c5a5c4aeb14a.ttf.woff2"><link rel="stylesheet" href="../../static.files/normalize-76eba96aa4d2e634.css"><link rel="stylesheet" href="../../static.files/rustdoc-5bc39a1768837dd0.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="tracing_subscriber" data-themes="" data-resource-suffix="" data-rustdoc-version="1.77.0 (aedd173a2 2024-03-17)" data-channel="1.77.0" data-search-js="search-dd67cee4cfa65049.js" data-settings-js="settings-4313503d2e1961c2.js" ><script src="../../static.files/storage-4c98445ec4002617.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../static.files/main-48f368f3872407c8.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-04d5337699b92874.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-16x16-8b506e7a72182f1c.png"><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-422f7d1d52889060.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-2c020d218678b618.svg"></head><body class="rustdoc struct"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="mobile-topbar"><button class="sidebar-menu-toggle" title="show sidebar"></button><a class="logo-container" href="../../tracing_subscriber/index.html"><img src="https://raw.githubusercontent.com/tokio-rs/tracing/master/assets/logo-type.png" alt=""></a></nav><nav class="sidebar"><div class="sidebar-crate"><a class="logo-container" href="../../tracing_subscriber/index.html"><img src="https://raw.githubusercontent.com/tokio-rs/tracing/master/assets/logo-type.png" alt="logo"></a><h2><a href="../../tracing_subscriber/index.html">tracing_subscriber</a><span class="version">0.3.18</span></h2></div><h2 class="location"><a href="#">Layered</a></h2><div class="sidebar-elems"><section><h3><a href="#implementations">Methods</a></h3><ul class="block method"><li><a href="#method.downcast_ref">downcast_ref</a></li><li><a href="#method.is">is</a></li></ul><h3><a href="#trait-implementations">Trait Implementations</a></h3><ul class="block trait-implementation"><li><a href="#impl-Clone-for-Layered%3CL,+I,+S%3E">Clone</a></li><li><a href="#impl-Debug-for-Layered%3CA,+B,+S%3E">Debug</a></li><li><a href="#impl-Layer%3CS%3E-for-Layered%3CA,+B,+S%3E">Layer&lt;S&gt;</a></li><li><a href="#impl-LookupSpan%3C'a%3E-for-Layered%3CL,+S%3E">LookupSpan&lt;&#x27;a&gt;</a></li><li><a href="#impl-Subscriber-for-Layered%3CL,+S%3E">Subscriber</a></li></ul><h3><a href="#synthetic-implementations">Auto Trait Implementations</a></h3><ul class="block synthetic-implementation"><li><a href="#impl-RefUnwindSafe-for-Layered%3CL,+I,+S%3E">RefUnwindSafe</a></li><li><a href="#impl-Send-for-Layered%3CL,+I,+S%3E">Send</a></li><li><a href="#impl-Sync-for-Layered%3CL,+I,+S%3E">Sync</a></li><li><a href="#impl-Unpin-for-Layered%3CL,+I,+S%3E">Unpin</a></li><li><a href="#impl-UnwindSafe-for-Layered%3CL,+I,+S%3E">UnwindSafe</a></li></ul><h3><a href="#blanket-implementations">Blanket Implementations</a></h3><ul class="block blanket-implementation"><li><a href="#impl-Any-for-T">Any</a></li><li><a href="#impl-Borrow%3CT%3E-for-T">Borrow&lt;T&gt;</a></li><li><a href="#impl-BorrowMut%3CT%3E-for-T">BorrowMut&lt;T&gt;</a></li><li><a href="#impl-From%3CT%3E-for-T">From&lt;T&gt;</a></li><li><a href="#impl-Instrument-for-T">Instrument</a></li><li><a href="#impl-Into%3CU%3E-for-T">Into&lt;U&gt;</a></li><li><a href="#impl-SubscriberExt-for-S">SubscriberExt</a></li><li><a href="#impl-SubscriberInitExt-for-T">SubscriberInitExt</a></li><li><a href="#impl-ToOwned-for-T">ToOwned</a></li><li><a href="#impl-TryFrom%3CU%3E-for-T">TryFrom&lt;U&gt;</a></li><li><a href="#impl-TryInto%3CU%3E-for-T">TryInto&lt;U&gt;</a></li><li><a href="#impl-WithSubscriber-for-T">WithSubscriber</a></li></ul></section><h2><a href="index.html">In tracing_subscriber::layer</a></h2></div></nav><div class="sidebar-resizer"></div>
<main><div class="width-limiter"><nav class="sub"><form class="search-form"><span></span><div id="sidebar-button" tabindex="-1"><a href="../../tracing_subscriber/all.html" title="show sidebar"></a></div><input class="search-input" name="search" aria-label="Run search in the documentation" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><div id="help-button" tabindex="-1"><a href="../../help.html" title="help">?</a></div><div id="settings-menu" tabindex="-1"><a href="../../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../../static.files/wheel-7b819b6101059cd0.svg"></a></div></form></nav><section id="main-content" class="content"><div class="main-heading"><h1>Struct <a href="../index.html">tracing_subscriber</a>::<wbr><a href="index.html">layer</a>::<wbr><a class="struct" href="#">Layered</a><button id="copy-path" title="Copy item path to clipboard"><img src="../../static.files/clipboard-7571035ce49a181d.svg" width="19" height="18" alt="Copy item path"></button></h1><span class="out-of-band"><a class="src" href="../../src/tracing_subscriber/layer/layered.rs.html#22-61">source</a> · <button id="toggle-all-docs" title="collapse all docs">[<span>&#x2212;</span>]</button></span></div><pre class="rust item-decl"><code>pub struct Layered&lt;L, I, S = I&gt; { <span class="comment">/* private fields */</span> }</code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>A <a href="../../tracing_core/subscriber/trait.Subscriber.html" title="trait tracing_core::subscriber::Subscriber"><code>Subscriber</code></a> composed of a <code>Subscriber</code> wrapped by one or more
<a href="trait.Layer.html" title="trait tracing_subscriber::layer::Layer"><code>Layer</code></a>s.</p>
</div></details><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-Layered%3CL,+S%3E" class="impl"><a class="src rightside" href="../../src/tracing_subscriber/layer/layered.rs.html#65-87">source</a><a href="#impl-Layered%3CL,+S%3E" class="anchor">§</a><h3 class="code-header">impl&lt;L, S&gt; <a class="struct" href="struct.Layered.html" title="struct tracing_subscriber::layer::Layered">Layered</a>&lt;L, S&gt;<div class="where">where
L: <a class="trait" href="trait.Layer.html" title="trait tracing_subscriber::layer::Layer">Layer</a>&lt;S&gt;,
S: <a class="trait" href="../../tracing_core/subscriber/trait.Subscriber.html" title="trait tracing_core::subscriber::Subscriber">Subscriber</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.is" class="method"><a class="src rightside" href="../../src/tracing_subscriber/layer/layered.rs.html#71-73">source</a><h4 class="code-header">pub fn <a href="#method.is" class="fn">is</a>&lt;T: <a class="trait" href="https://doc.rust-lang.org/1.77.0/core/any/trait.Any.html" title="trait core::any::Any">Any</a>&gt;(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/1.77.0/std/primitive.bool.html">bool</a></h4></section></summary><div class="docblock"><p>Returns <code>true</code> if this <a href="../../tracing_core/subscriber/trait.Subscriber.html" title="trait tracing_core::subscriber::Subscriber"><code>Subscriber</code></a> is the same type as <code>T</code>.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.downcast_ref" class="method"><a class="src rightside" href="../../src/tracing_subscriber/layer/layered.rs.html#77-86">source</a><h4 class="code-header">pub fn <a href="#method.downcast_ref" class="fn">downcast_ref</a>&lt;T: <a class="trait" href="https://doc.rust-lang.org/1.77.0/core/any/trait.Any.html" title="trait core::any::Any">Any</a>&gt;(&amp;self) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.77.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.77.0/std/primitive.reference.html">&amp;T</a>&gt;</h4></section></summary><div class="docblock"><p>Returns some reference to this <a href="../../tracing_core/subscriber/trait.Subscriber.html" title="trait tracing_core::subscriber::Subscriber"><code>Subscriber</code></a> value if it is of type <code>T</code>,
or <code>None</code> if it isn’t.</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-Clone-for-Layered%3CL,+I,+S%3E" class="impl"><a class="src rightside" href="../../src/tracing_subscriber/layer/layered.rs.html#21">source</a><a href="#impl-Clone-for-Layered%3CL,+I,+S%3E" class="anchor">§</a><h3 class="code-header">impl&lt;L: <a class="trait" href="https://doc.rust-lang.org/1.77.0/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>, I: <a class="trait" href="https://doc.rust-lang.org/1.77.0/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>, S: <a class="trait" href="https://doc.rust-lang.org/1.77.0/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>&gt; <a class="trait" href="https://doc.rust-lang.org/1.77.0/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a> for <a class="struct" href="struct.Layered.html" title="struct tracing_subscriber::layer::Layered">Layered</a>&lt;L, I, S&gt;</h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.clone" class="method trait-impl"><a class="src rightside" href="../../src/tracing_subscriber/layer/layered.rs.html#21">source</a><a href="#method.clone" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.77.0/core/clone/trait.Clone.html#tymethod.clone" class="fn">clone</a>(&amp;self) -&gt; <a class="struct" href="struct.Layered.html" title="struct tracing_subscriber::layer::Layered">Layered</a>&lt;L, I, S&gt;</h4></section></summary><div class='docblock'>Returns a copy of the value. <a href="https://doc.rust-lang.org/1.77.0/core/clone/trait.Clone.html#tymethod.clone">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.clone_from" class="method trait-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/1.77.0/src/core/clone.rs.html#169">source</a></span><a href="#method.clone_from" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.77.0/core/clone/trait.Clone.html#method.clone_from" class="fn">clone_from</a>(&amp;mut self, source: <a class="primitive" href="https://doc.rust-lang.org/1.77.0/std/primitive.reference.html">&amp;Self</a>)</h4></section></summary><div class='docblock'>Performs copy-assignment from <code>source</code>. <a href="https://doc.rust-lang.org/1.77.0/core/clone/trait.Clone.html#method.clone_from">Read more</a></div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-Debug-for-Layered%3CA,+B,+S%3E" class="impl"><a class="src rightside" href="../../src/tracing_subscriber/layer/layered.rs.html#528-554">source</a><a href="#impl-Debug-for-Layered%3CA,+B,+S%3E" class="anchor">§</a><h3 class="code-header">impl&lt;A, B, S&gt; <a class="trait" href="https://doc.rust-lang.org/1.77.0/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a> for <a class="struct" href="struct.Layered.html" title="struct tracing_subscriber::layer::Layered">Layered</a>&lt;A, B, S&gt;<div class="where">where
A: <a class="trait" href="https://doc.rust-lang.org/1.77.0/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a>,
B: <a class="trait" href="https://doc.rust-lang.org/1.77.0/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.fmt" class="method trait-impl"><a class="src rightside" href="../../src/tracing_subscriber/layer/layered.rs.html#533-553">source</a><a href="#method.fmt" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.77.0/core/fmt/trait.Debug.html#tymethod.fmt" class="fn">fmt</a>(&amp;self, f: &amp;mut <a class="struct" href="https://doc.rust-lang.org/1.77.0/core/fmt/struct.Formatter.html" title="struct core::fmt::Formatter">Formatter</a>&lt;'_&gt;) -&gt; <a class="type" href="https://doc.rust-lang.org/1.77.0/core/fmt/type.Result.html" title="type core::fmt::Result">Result</a></h4></section></summary><div class='docblock'>Formats the value using the given formatter. <a href="https://doc.rust-lang.org/1.77.0/core/fmt/trait.Debug.html#tymethod.fmt">Read more</a></div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-Layer%3CS%3E-for-Layered%3CA,+B,+S%3E" class="impl"><a class="src rightside" href="../../src/tracing_subscriber/layer/layered.rs.html#241-383">source</a><a href="#impl-Layer%3CS%3E-for-Layered%3CA,+B,+S%3E" class="anchor">§</a><h3 class="code-header">impl&lt;S, A, B&gt; <a class="trait" href="trait.Layer.html" title="trait tracing_subscriber::layer::Layer">Layer</a>&lt;S&gt; for <a class="struct" href="struct.Layered.html" title="struct tracing_subscriber::layer::Layered">Layered</a>&lt;A, B, S&gt;<div class="where">where
A: <a class="trait" href="trait.Layer.html" title="trait tracing_subscriber::layer::Layer">Layer</a>&lt;S&gt;,
B: <a class="trait" href="trait.Layer.html" title="trait tracing_subscriber::layer::Layer">Layer</a>&lt;S&gt;,
S: <a class="trait" href="../../tracing_core/subscriber/trait.Subscriber.html" title="trait tracing_core::subscriber::Subscriber">Subscriber</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.on_register_dispatch" class="method trait-impl"><a class="src rightside" href="../../src/tracing_subscriber/layer/layered.rs.html#247-250">source</a><a href="#method.on_register_dispatch" class="anchor">§</a><h4 class="code-header">fn <a href="trait.Layer.html#method.on_register_dispatch" class="fn">on_register_dispatch</a>(&amp;self, subscriber: &amp;<a class="struct" href="../../tracing_core/dispatcher/struct.Dispatch.html" title="struct tracing_core::dispatcher::Dispatch">Dispatch</a>)</h4></section></summary><div class='docblock'>Performs late initialization when installing this layer as a
<a href="../../tracing_core/subscriber/trait.Subscriber.html" title="trait tracing_core::subscriber::Subscriber"><code>Subscriber</code></a>. <a href="trait.Layer.html#method.on_register_dispatch">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.on_layer" class="method trait-impl"><a class="src rightside" href="../../src/tracing_subscriber/layer/layered.rs.html#252-255">source</a><a href="#method.on_layer" class="anchor">§</a><h4 class="code-header">fn <a href="trait.Layer.html#method.on_layer" class="fn">on_layer</a>(&amp;mut self, subscriber: <a class="primitive" href="https://doc.rust-lang.org/1.77.0/std/primitive.reference.html">&amp;mut S</a>)</h4></section></summary><div class='docblock'>Performs late initialization when attaching a <code>Layer</code> to a
<a href="../../tracing_core/subscriber/trait.Subscriber.html" title="trait tracing_core::subscriber::Subscriber"><code>Subscriber</code></a>. <a href="trait.Layer.html#method.on_layer">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.register_callsite" class="method trait-impl"><a class="src rightside" href="../../src/tracing_subscriber/layer/layered.rs.html#257-261">source</a><a href="#method.register_callsite" class="anchor">§</a><h4 class="code-header">fn <a href="trait.Layer.html#method.register_callsite" class="fn">register_callsite</a>(&amp;self, metadata: &amp;'static <a class="struct" href="../../tracing_core/metadata/struct.Metadata.html" title="struct tracing_core::metadata::Metadata">Metadata</a>&lt;'static&gt;) -&gt; <a class="struct" href="../../tracing_core/subscriber/struct.Interest.html" title="struct tracing_core::subscriber::Interest">Interest</a></h4></section></summary><div class='docblock'>Registers a new callsite with this layer, returning whether or not
the layer is interested in being notified about the callsite, similarly
to <a href="../../tracing_core/subscriber/trait.Subscriber.html#method.register_callsite" title="method tracing_core::subscriber::Subscriber::register_callsite"><code>Subscriber::register_callsite</code></a>. <a href="trait.Layer.html#method.register_callsite">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.enabled" class="method trait-impl"><a class="src rightside" href="../../src/tracing_subscriber/layer/layered.rs.html#263-271">source</a><a href="#method.enabled" class="anchor">§</a><h4 class="code-header">fn <a href="trait.Layer.html#method.enabled" class="fn">enabled</a>(&amp;self, metadata: &amp;<a class="struct" href="../../tracing_core/metadata/struct.Metadata.html" title="struct tracing_core::metadata::Metadata">Metadata</a>&lt;'_&gt;, ctx: <a class="struct" href="struct.Context.html" title="struct tracing_subscriber::layer::Context">Context</a>&lt;'_, S&gt;) -&gt; <a class="primitive" href="https://doc.rust-lang.org/1.77.0/std/primitive.bool.html">bool</a></h4></section></summary><div class='docblock'>Returns <code>true</code> if this layer is interested in a span or event with the
given <code>metadata</code> in the current <a href="struct.Context.html" title="struct tracing_subscriber::layer::Context"><code>Context</code></a>, similarly to
<a href="../../tracing_core/subscriber/trait.Subscriber.html#tymethod.enabled" title="method tracing_core::subscriber::Subscriber::enabled"><code>Subscriber::enabled</code></a>. <a href="trait.Layer.html#method.enabled">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.on_new_span" class="method trait-impl"><a class="src rightside" href="../../src/tracing_subscriber/layer/layered.rs.html#282-285">source</a><a href="#method.on_new_span" class="anchor">§</a><h4 class="code-header">fn <a href="trait.Layer.html#method.on_new_span" class="fn">on_new_span</a>(&amp;self, attrs: &amp;<a class="struct" href="../../tracing_core/span/struct.Attributes.html" title="struct tracing_core::span::Attributes">Attributes</a>&lt;'_&gt;, id: &amp;<a class="struct" href="../../tracing_core/span/struct.Id.html" title="struct tracing_core::span::Id">Id</a>, ctx: <a class="struct" href="struct.Context.html" title="struct tracing_subscriber::layer::Context">Context</a>&lt;'_, S&gt;)</h4></section></summary><div class='docblock'>Notifies this layer that a new span was constructed with the given
<code>Attributes</code> and <code>Id</code>.</div></details><details class="toggle method-toggle" open><summary><section id="method.on_record" class="method trait-impl"><a class="src rightside" href="../../src/tracing_subscriber/layer/layered.rs.html#288-291">source</a><a href="#method.on_record" class="anchor">§</a><h4 class="code-header">fn <a href="trait.Layer.html#method.on_record" class="fn">on_record</a>(&amp;self, span: &amp;<a class="struct" href="../../tracing_core/span/struct.Id.html" title="struct tracing_core::span::Id">Id</a>, values: &amp;<a class="struct" href="../../tracing_core/span/struct.Record.html" title="struct tracing_core::span::Record">Record</a>&lt;'_&gt;, ctx: <a class="struct" href="struct.Context.html" title="struct tracing_subscriber::layer::Context">Context</a>&lt;'_, S&gt;)</h4></section></summary><div class='docblock'>Notifies this layer that a span with the given <code>Id</code> recorded the given
<code>values</code>.</div></details><details class="toggle method-toggle" open><summary><section id="method.on_follows_from" class="method trait-impl"><a class="src rightside" href="../../src/tracing_subscriber/layer/layered.rs.html#294-297">source</a><a href="#method.on_follows_from" class="anchor">§</a><h4 class="code-header">fn <a href="trait.Layer.html#method.on_follows_from" class="fn">on_follows_from</a>(&amp;self, span: &amp;<a class="struct" href="../../tracing_core/span/struct.Id.html" title="struct tracing_core::span::Id">Id</a>, follows: &amp;<a class="struct" href="../../tracing_core/span/struct.Id.html" title="struct tracing_core::span::Id">Id</a>, ctx: <a class="struct" href="struct.Context.html" title="struct tracing_subscriber::layer::Context">Context</a>&lt;'_, S&gt;)</h4></section></summary><div class='docblock'>Notifies this layer that a span with the ID <code>span</code> recorded that it
follows from the span with the ID <code>follows</code>.</div></details><details class="toggle method-toggle" open><summary><section id="method.event_enabled" class="method trait-impl"><a class="src rightside" href="../../src/tracing_subscriber/layer/layered.rs.html#300-308">source</a><a href="#method.event_enabled" class="anchor">§</a><h4 class="code-header">fn <a href="trait.Layer.html#method.event_enabled" class="fn">event_enabled</a>(&amp;self, event: &amp;<a class="struct" href="../../tracing_core/event/struct.Event.html" title="struct tracing_core::event::Event">Event</a>&lt;'_&gt;, ctx: <a class="struct" href="struct.Context.html" title="struct tracing_subscriber::layer::Context">Context</a>&lt;'_, S&gt;) -&gt; <a class="primitive" href="https://doc.rust-lang.org/1.77.0/std/primitive.bool.html">bool</a></h4></section></summary><div class='docblock'>Called before <a href="trait.Layer.html#method.on_event"><code>on_event</code></a>, to determine if <code>on_event</code> should be called.</div></details><details class="toggle method-toggle" open><summary><section id="method.on_event" class="method trait-impl"><a class="src rightside" href="../../src/tracing_subscriber/layer/layered.rs.html#311-314">source</a><a href="#method.on_event" class="anchor">§</a><h4 class="code-header">fn <a href="trait.Layer.html#method.on_event" class="fn">on_event</a>(&amp;self, event: &amp;<a class="struct" href="../../tracing_core/event/struct.Event.html" title="struct tracing_core::event::Event">Event</a>&lt;'_&gt;, ctx: <a class="struct" href="struct.Context.html" title="struct tracing_subscriber::layer::Context">Context</a>&lt;'_, S&gt;)</h4></section></summary><div class='docblock'>Notifies this layer that an event has occurred.</div></details><details class="toggle method-toggle" open><summary><section id="method.on_enter" class="method trait-impl"><a class="src rightside" href="../../src/tracing_subscriber/layer/layered.rs.html#317-320">source</a><a href="#method.on_enter" class="anchor">§</a><h4 class="code-header">fn <a href="trait.Layer.html#method.on_enter" class="fn">on_enter</a>(&amp;self, id: &amp;<a class="struct" href="../../tracing_core/span/struct.Id.html" title="struct tracing_core::span::Id">Id</a>, ctx: <a class="struct" href="struct.Context.html" title="struct tracing_subscriber::layer::Context">Context</a>&lt;'_, S&gt;)</h4></section></summary><div class='docblock'>Notifies this layer that a span with the given ID was entered.</div></details><details class="toggle method-toggle" open><summary><section id="method.on_exit" class="method trait-impl"><a class="src rightside" href="../../src/tracing_subscriber/layer/layered.rs.html#323-326">source</a><a href="#method.on_exit" class="anchor">§</a><h4 class="code-header">fn <a href="trait.Layer.html#method.on_exit" class="fn">on_exit</a>(&amp;self, id: &amp;<a class="struct" href="../../tracing_core/span/struct.Id.html" title="struct tracing_core::span::Id">Id</a>, ctx: <a class="struct" href="struct.Context.html" title="struct tracing_subscriber::layer::Context">Context</a>&lt;'_, S&gt;)</h4></section></summary><div class='docblock'>Notifies this layer that the span with the given ID was exited.</div></details><details class="toggle method-toggle" open><summary><section id="method.on_close" class="method trait-impl"><a class="src rightside" href="../../src/tracing_subscriber/layer/layered.rs.html#329-332">source</a><a href="#method.on_close" class="anchor">§</a><h4 class="code-header">fn <a href="trait.Layer.html#method.on_close" class="fn">on_close</a>(&amp;self, id: <a class="struct" href="../../tracing_core/span/struct.Id.html" title="struct tracing_core::span::Id">Id</a>, ctx: <a class="struct" href="struct.Context.html" title="struct tracing_subscriber::layer::Context">Context</a>&lt;'_, S&gt;)</h4></section></summary><div class='docblock'>Notifies this layer that the span with the given ID has been closed.</div></details><details class="toggle method-toggle" open><summary><section id="method.on_id_change" class="method trait-impl"><a class="src rightside" href="../../src/tracing_subscriber/layer/layered.rs.html#335-338">source</a><a href="#method.on_id_change" class="anchor">§</a><h4 class="code-header">fn <a href="trait.Layer.html#method.on_id_change" class="fn">on_id_change</a>(&amp;self, old: &amp;<a class="struct" href="../../tracing_core/span/struct.Id.html" title="struct tracing_core::span::Id">Id</a>, new: &amp;<a class="struct" href="../../tracing_core/span/struct.Id.html" title="struct tracing_core::span::Id">Id</a>, ctx: <a class="struct" href="struct.Context.html" title="struct tracing_subscriber::layer::Context">Context</a>&lt;'_, S&gt;)</h4></section></summary><div class='docblock'>Notifies this layer that a span ID has been cloned, and that the
subscriber returned a different ID.</div></details><details class="toggle method-toggle" open><summary><section id="method.and_then" class="method trait-impl"><a class="src rightside" href="../../src/tracing_subscriber/layer/mod.rs.html#1039-1046">source</a><a href="#method.and_then" class="anchor">§</a><h4 class="code-header">fn <a href="trait.Layer.html#method.and_then" class="fn">and_then</a>&lt;L&gt;(self, layer: L) -&gt; <a class="struct" href="struct.Layered.html" title="struct tracing_subscriber::layer::Layered">Layered</a>&lt;L, Self, S&gt;<div class="where">where
L: <a class="trait" href="trait.Layer.html" title="trait tracing_subscriber::layer::Layer">Layer</a>&lt;S&gt;,
Self: <a class="trait" href="https://doc.rust-lang.org/1.77.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h4></section></summary><div class='docblock'>Composes this layer around the given <code>Layer</code>, returning a <code>Layered</code>
struct implementing <code>Layer</code>. <a href="trait.Layer.html#method.and_then">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.with_subscriber" class="method trait-impl"><a class="src rightside" href="../../src/tracing_subscriber/layer/mod.rs.html#1091-1098">source</a><a href="#method.with_subscriber" class="anchor">§</a><h4 class="code-header">fn <a href="trait.Layer.html#method.with_subscriber" class="fn">with_subscriber</a>(self, inner: S) -&gt; <a class="struct" href="struct.Layered.html" title="struct tracing_subscriber::layer::Layered">Layered</a>&lt;Self, S&gt;<div class="where">where
Self: <a class="trait" href="https://doc.rust-lang.org/1.77.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h4></section></summary><div class='docblock'>Composes this <code>Layer</code> with the given <a href="../../tracing_core/subscriber/trait.Subscriber.html" title="trait tracing_core::subscriber::Subscriber"><code>Subscriber</code></a>, returning a
<code>Layered</code> struct that implements <a href="../../tracing_core/subscriber/trait.Subscriber.html" title="trait tracing_core::subscriber::Subscriber"><code>Subscriber</code></a>. <a href="trait.Layer.html#method.with_subscriber">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.with_filter" class="method trait-impl"><a class="src rightside" href="../../src/tracing_subscriber/layer/mod.rs.html#1110-1116">source</a><a href="#method.with_filter" class="anchor">§</a><h4 class="code-header">fn <a href="trait.Layer.html#method.with_filter" class="fn">with_filter</a>&lt;F&gt;(self, filter: F) -&gt; <a class="struct" href="../filter/struct.Filtered.html" title="struct tracing_subscriber::filter::Filtered">Filtered</a>&lt;Self, F, S&gt;<div class="where">where
Self: <a class="trait" href="https://doc.rust-lang.org/1.77.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,
F: <a class="trait" href="trait.Filter.html" title="trait tracing_subscriber::layer::Filter">Filter</a>&lt;S&gt;,</div></h4></section></summary><div class='docblock'>Combines <code>self</code> with a <a href="trait.Filter.html" title="trait tracing_subscriber::layer::Filter"><code>Filter</code></a>, returning a <a href="../filter/struct.Filtered.html" title="struct tracing_subscriber::filter::Filtered"><code>Filtered</code></a> layer. <a href="trait.Layer.html#method.with_filter">Read more</a></div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-LookupSpan%3C'a%3E-for-Layered%3CL,+S%3E" class="impl"><a class="src rightside" href="../../src/tracing_subscriber/layer/layered.rs.html#385-399">source</a><a href="#impl-LookupSpan%3C'a%3E-for-Layered%3CL,+S%3E" class="anchor">§</a><h3 class="code-header">impl&lt;'a, L, S&gt; <a class="trait" href="../registry/trait.LookupSpan.html" title="trait tracing_subscriber::registry::LookupSpan">LookupSpan</a>&lt;'a&gt; for <a class="struct" href="struct.Layered.html" title="struct tracing_subscriber::layer::Layered">Layered</a>&lt;L, S&gt;<div class="where">where
S: <a class="trait" href="../../tracing_core/subscriber/trait.Subscriber.html" title="trait tracing_core::subscriber::Subscriber">Subscriber</a> + <a class="trait" href="../registry/trait.LookupSpan.html" title="trait tracing_subscriber::registry::LookupSpan">LookupSpan</a>&lt;'a&gt;,</div></h3></section></summary><div class="impl-items"><details class="toggle" open><summary><section id="associatedtype.Data" class="associatedtype trait-impl"><a href="#associatedtype.Data" class="anchor">§</a><h4 class="code-header">type <a href="../registry/trait.LookupSpan.html#associatedtype.Data" class="associatedtype">Data</a> = &lt;S as <a class="trait" href="../registry/trait.LookupSpan.html" title="trait tracing_subscriber::registry::LookupSpan">LookupSpan</a>&lt;'a&gt;&gt;::<a class="associatedtype" href="../registry/trait.LookupSpan.html#associatedtype.Data" title="type tracing_subscriber::registry::LookupSpan::Data">Data</a></h4></section></summary><div class='docblock'>The type of span data stored in this registry.</div></details><details class="toggle method-toggle" open><summary><section id="method.span_data" class="method trait-impl"><a class="src rightside" href="../../src/tracing_subscriber/layer/layered.rs.html#391-393">source</a><a href="#method.span_data" class="anchor">§</a><h4 class="code-header">fn <a href="../registry/trait.LookupSpan.html#tymethod.span_data" class="fn">span_data</a>(&amp;'a self, id: &amp;<a class="struct" href="../../tracing_core/span/struct.Id.html" title="struct tracing_core::span::Id">Id</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.77.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self::<a class="associatedtype" href="../registry/trait.LookupSpan.html#associatedtype.Data" title="type tracing_subscriber::registry::LookupSpan::Data">Data</a>&gt;</h4></section></summary><div class='docblock'>Returns the <a href="../registry/trait.SpanData.html" title="trait tracing_subscriber::registry::SpanData"><code>SpanData</code></a> for a given <code>Id</code>, if it exists.</div></details><details class="toggle method-toggle" open><summary><section id="method.register_filter" class="method trait-impl"><a class="src rightside" href="../../src/tracing_subscriber/layer/layered.rs.html#396-398">source</a><a href="#method.register_filter" class="anchor">§</a><h4 class="code-header">fn <a href="../registry/trait.LookupSpan.html#method.register_filter" class="fn">register_filter</a>(&amp;mut self) -&gt; <a class="struct" href="../filter/struct.FilterId.html" title="struct tracing_subscriber::filter::FilterId">FilterId</a></h4></section></summary><div class='docblock'>Registers a <a href="trait.Filter.html" title="trait tracing_subscriber::layer::Filter"><code>Filter</code></a> for <a href="trait.Layer.html#per-layer-filtering" title="trait tracing_subscriber::layer::Layer">per-layer filtering</a> with this
<a href="../../tracing_core/subscriber/trait.Subscriber.html" title="trait tracing_core::subscriber::Subscriber"><code>Subscriber</code></a>. <a href="../registry/trait.LookupSpan.html#method.register_filter">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.span" class="method trait-impl"><a class="src rightside" href="../../src/tracing_subscriber/registry/mod.rs.html#118-129">source</a><a href="#method.span" class="anchor">§</a><h4 class="code-header">fn <a href="../registry/trait.LookupSpan.html#method.span" class="fn">span</a>(&amp;'a self, id: &amp;<a class="struct" href="../../tracing_core/span/struct.Id.html" title="struct tracing_core::span::Id">Id</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.77.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="struct" href="../registry/struct.SpanRef.html" title="struct tracing_subscriber::registry::SpanRef">SpanRef</a>&lt;'_, Self&gt;&gt;<div class="where">where
Self: <a class="trait" href="https://doc.rust-lang.org/1.77.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h4></section></summary><div class='docblock'>Returns a <a href="../registry/struct.SpanRef.html" title="struct tracing_subscriber::registry::SpanRef"><code>SpanRef</code></a> for the span with the given <code>Id</code>, if it exists. <a href="../registry/trait.LookupSpan.html#method.span">Read more</a></div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-Subscriber-for-Layered%3CL,+S%3E" class="impl"><a class="src rightside" href="../../src/tracing_subscriber/layer/layered.rs.html#89-239">source</a><a href="#impl-Subscriber-for-Layered%3CL,+S%3E" class="anchor">§</a><h3 class="code-header">impl&lt;L, S&gt; <a class="trait" href="../../tracing_core/subscriber/trait.Subscriber.html" title="trait tracing_core::subscriber::Subscriber">Subscriber</a> for <a class="struct" href="struct.Layered.html" title="struct tracing_subscriber::layer::Layered">Layered</a>&lt;L, S&gt;<div class="where">where
L: <a class="trait" href="trait.Layer.html" title="trait tracing_subscriber::layer::Layer">Layer</a>&lt;S&gt;,
S: <a class="trait" href="../../tracing_core/subscriber/trait.Subscriber.html" title="trait tracing_core::subscriber::Subscriber">Subscriber</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.register_callsite-1" class="method trait-impl"><a class="src rightside" href="../../src/tracing_subscriber/layer/layered.rs.html#94-98">source</a><a href="#method.register_callsite-1" class="anchor">§</a><h4 class="code-header">fn <a href="../../tracing_core/subscriber/trait.Subscriber.html#method.register_callsite" class="fn">register_callsite</a>(&amp;self, metadata: &amp;'static <a class="struct" href="../../tracing_core/metadata/struct.Metadata.html" title="struct tracing_core::metadata::Metadata">Metadata</a>&lt;'static&gt;) -&gt; <a class="struct" href="../../tracing_core/subscriber/struct.Interest.html" title="struct tracing_core::subscriber::Interest">Interest</a></h4></section></summary><div class='docblock'>Registers a new <a href="../../tracing_core/callsite/index.html" title="mod tracing_core::callsite">callsite</a> with this subscriber, returning whether or not
the subscriber is interested in being notified about the callsite. <a href="../../tracing_core/subscriber/trait.Subscriber.html#method.register_callsite">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.enabled-1" class="method trait-impl"><a class="src rightside" href="../../src/tracing_subscriber/layer/layered.rs.html#100-115">source</a><a href="#method.enabled-1" class="anchor">§</a><h4 class="code-header">fn <a href="../../tracing_core/subscriber/trait.Subscriber.html#tymethod.enabled" class="fn">enabled</a>(&amp;self, metadata: &amp;<a class="struct" href="../../tracing_core/metadata/struct.Metadata.html" title="struct tracing_core::metadata::Metadata">Metadata</a>&lt;'_&gt;) -&gt; <a class="primitive" href="https://doc.rust-lang.org/1.77.0/std/primitive.bool.html">bool</a></h4></section></summary><div class='docblock'>Returns true if a span or event with the specified <a href="../../tracing_core/metadata/struct.Metadata.html" title="struct tracing_core::metadata::Metadata">metadata</a> would be
recorded. <a href="../../tracing_core/subscriber/trait.Subscriber.html#tymethod.enabled">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.max_level_hint" class="method trait-impl"><a class="src rightside" href="../../src/tracing_subscriber/layer/layered.rs.html#117-123">source</a><a href="#method.max_level_hint" class="anchor">§</a><h4 class="code-header">fn <a href="../../tracing_core/subscriber/trait.Subscriber.html#method.max_level_hint" class="fn">max_level_hint</a>(&amp;self) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.77.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="struct" href="../filter/struct.LevelFilter.html" title="struct tracing_subscriber::filter::LevelFilter">LevelFilter</a>&gt;</h4></section></summary><div class='docblock'>Returns the highest <a href="../../tracing_core/metadata/struct.Level.html" title="struct tracing_core::metadata::Level">verbosity level</a> that this <code>Subscriber</code> will
enable, or <code>None</code>, if the subscriber does not implement level-based
filtering or chooses not to implement this method. <a href="../../tracing_core/subscriber/trait.Subscriber.html#method.max_level_hint">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.new_span" class="method trait-impl"><a class="src rightside" href="../../src/tracing_subscriber/layer/layered.rs.html#125-129">source</a><a href="#method.new_span" class="anchor">§</a><h4 class="code-header">fn <a href="../../tracing_core/subscriber/trait.Subscriber.html#tymethod.new_span" class="fn">new_span</a>(&amp;self, span: &amp;<a class="struct" href="../../tracing_core/span/struct.Attributes.html" title="struct tracing_core::span::Attributes">Attributes</a>&lt;'_&gt;) -&gt; <a class="struct" href="../../tracing_core/span/struct.Id.html" title="struct tracing_core::span::Id">Id</a></h4></section></summary><div class='docblock'>Visit the construction of a new span, returning a new <a href="../../tracing_core/span/struct.Id.html" title="struct tracing_core::span::Id">span ID</a> for the
span being constructed. <a href="../../tracing_core/subscriber/trait.Subscriber.html#tymethod.new_span">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.record" class="method trait-impl"><a class="src rightside" href="../../src/tracing_subscriber/layer/layered.rs.html#131-134">source</a><a href="#method.record" class="anchor">§</a><h4 class="code-header">fn <a href="../../tracing_core/subscriber/trait.Subscriber.html#tymethod.record" class="fn">record</a>(&amp;self, span: &amp;<a class="struct" href="../../tracing_core/span/struct.Id.html" title="struct tracing_core::span::Id">Id</a>, values: &amp;<a class="struct" href="../../tracing_core/span/struct.Record.html" title="struct tracing_core::span::Record">Record</a>&lt;'_&gt;)</h4></section></summary><div class='docblock'>Record a set of values on a span. <a href="../../tracing_core/subscriber/trait.Subscriber.html#tymethod.record">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.record_follows_from" class="method trait-impl"><a class="src rightside" href="../../src/tracing_subscriber/layer/layered.rs.html#136-139">source</a><a href="#method.record_follows_from" class="anchor">§</a><h4 class="code-header">fn <a href="../../tracing_core/subscriber/trait.Subscriber.html#tymethod.record_follows_from" class="fn">record_follows_from</a>(&amp;self, span: &amp;<a class="struct" href="../../tracing_core/span/struct.Id.html" title="struct tracing_core::span::Id">Id</a>, follows: &amp;<a class="struct" href="../../tracing_core/span/struct.Id.html" title="struct tracing_core::span::Id">Id</a>)</h4></section></summary><div class='docblock'>Adds an indication that <code>span</code> follows from the span with the id
<code>follows</code>. <a href="../../tracing_core/subscriber/trait.Subscriber.html#tymethod.record_follows_from">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.event_enabled-1" class="method trait-impl"><a class="src rightside" href="../../src/tracing_subscriber/layer/layered.rs.html#141-149">source</a><a href="#method.event_enabled-1" class="anchor">§</a><h4 class="code-header">fn <a href="../../tracing_core/subscriber/trait.Subscriber.html#method.event_enabled" class="fn">event_enabled</a>(&amp;self, event: &amp;<a class="struct" href="../../tracing_core/event/struct.Event.html" title="struct tracing_core::event::Event">Event</a>&lt;'_&gt;) -&gt; <a class="primitive" href="https://doc.rust-lang.org/1.77.0/std/primitive.bool.html">bool</a></h4></section></summary><div class='docblock'>Determine if an <a href="../../tracing_core/event/struct.Event.html" title="struct tracing_core::event::Event"><code>Event</code></a> should be recorded. <a href="../../tracing_core/subscriber/trait.Subscriber.html#method.event_enabled">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.event" class="method trait-impl"><a class="src rightside" href="../../src/tracing_subscriber/layer/layered.rs.html#151-154">source</a><a href="#method.event" class="anchor">§</a><h4 class="code-header">fn <a href="../../tracing_core/subscriber/trait.Subscriber.html#tymethod.event" class="fn">event</a>(&amp;self, event: &amp;<a class="struct" href="../../tracing_core/event/struct.Event.html" title="struct tracing_core::event::Event">Event</a>&lt;'_&gt;)</h4></section></summary><div class='docblock'>Records that an <a href="../../tracing_core/event/struct.Event.html" title="struct tracing_core::event::Event"><code>Event</code></a> has occurred. <a href="../../tracing_core/subscriber/trait.Subscriber.html#tymethod.event">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.enter" class="method trait-impl"><a class="src rightside" href="../../src/tracing_subscriber/layer/layered.rs.html#156-159">source</a><a href="#method.enter" class="anchor">§</a><h4 class="code-header">fn <a href="../../tracing_core/subscriber/trait.Subscriber.html#tymethod.enter" class="fn">enter</a>(&amp;self, span: &amp;<a class="struct" href="../../tracing_core/span/struct.Id.html" title="struct tracing_core::span::Id">Id</a>)</h4></section></summary><div class='docblock'>Records that a span has been entered. <a href="../../tracing_core/subscriber/trait.Subscriber.html#tymethod.enter">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.exit" class="method trait-impl"><a class="src rightside" href="../../src/tracing_subscriber/layer/layered.rs.html#161-164">source</a><a href="#method.exit" class="anchor">§</a><h4 class="code-header">fn <a href="../../tracing_core/subscriber/trait.Subscriber.html#tymethod.exit" class="fn">exit</a>(&amp;self, span: &amp;<a class="struct" href="../../tracing_core/span/struct.Id.html" title="struct tracing_core::span::Id">Id</a>)</h4></section></summary><div class='docblock'>Records that a span has been exited. <a href="../../tracing_core/subscriber/trait.Subscriber.html#tymethod.exit">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.clone_span" class="method trait-impl"><a class="src rightside" href="../../src/tracing_subscriber/layer/layered.rs.html#166-172">source</a><a href="#method.clone_span" class="anchor">§</a><h4 class="code-header">fn <a href="../../tracing_core/subscriber/trait.Subscriber.html#method.clone_span" class="fn">clone_span</a>(&amp;self, old: &amp;<a class="struct" href="../../tracing_core/span/struct.Id.html" title="struct tracing_core::span::Id">Id</a>) -&gt; <a class="struct" href="../../tracing_core/span/struct.Id.html" title="struct tracing_core::span::Id">Id</a></h4></section></summary><div class='docblock'>Notifies the subscriber that a <a href="../../tracing_core/span/struct.Id.html" title="struct tracing_core::span::Id">span ID</a> has been cloned. <a href="../../tracing_core/subscriber/trait.Subscriber.html#method.clone_span">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.drop_span" class="method trait-impl"><a class="src rightside" href="../../src/tracing_subscriber/layer/layered.rs.html#175-177">source</a><a href="#method.drop_span" class="anchor">§</a><h4 class="code-header">fn <a href="../../tracing_core/subscriber/trait.Subscriber.html#method.drop_span" class="fn">drop_span</a>(&amp;self, id: <a class="struct" href="../../tracing_core/span/struct.Id.html" title="struct tracing_core::span::Id">Id</a>)</h4></section></summary><span class="item-info"><div class="stab deprecated"><span class="emoji">👎</span><span>Deprecated since 0.1.2: use <code>Subscriber::try_close</code> instead</span></div></span><div class='docblock'><strong>This method is deprecated.</strong> <a href="../../tracing_core/subscriber/trait.Subscriber.html#method.drop_span">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.try_close" class="method trait-impl"><a class="src rightside" href="../../src/tracing_subscriber/layer/layered.rs.html#179-201">source</a><a href="#method.try_close" class="anchor">§</a><h4 class="code-header">fn <a href="../../tracing_core/subscriber/trait.Subscriber.html#method.try_close" class="fn">try_close</a>(&amp;self, id: <a class="struct" href="../../tracing_core/span/struct.Id.html" title="struct tracing_core::span::Id">Id</a>) -&gt; <a class="primitive" href="https://doc.rust-lang.org/1.77.0/std/primitive.bool.html">bool</a></h4></section></summary><div class='docblock'>Notifies the subscriber that a <a href="../../tracing_core/span/struct.Id.html" title="struct tracing_core::span::Id">span ID</a> has been dropped, and returns
<code>true</code> if there are now 0 IDs that refer to that span. <a href="../../tracing_core/subscriber/trait.Subscriber.html#method.try_close">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.current_span" class="method trait-impl"><a class="src rightside" href="../../src/tracing_subscriber/layer/layered.rs.html#204-206">source</a><a href="#method.current_span" class="anchor">§</a><h4 class="code-header">fn <a href="../../tracing_core/subscriber/trait.Subscriber.html#method.current_span" class="fn">current_span</a>(&amp;self) -&gt; <a class="struct" href="../../tracing_core/span/struct.Current.html" title="struct tracing_core::span::Current">Current</a></h4></section></summary><div class='docblock'>Returns a type representing this subscriber’s view of the current span. <a href="../../tracing_core/subscriber/trait.Subscriber.html#method.current_span">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.on_register_dispatch-1" class="method trait-impl"><a class="src rightside" href="../../src/tracing_core/subscriber.rs.html#103">source</a><a href="#method.on_register_dispatch-1" class="anchor">§</a><h4 class="code-header">fn <a href="../../tracing_core/subscriber/trait.Subscriber.html#method.on_register_dispatch" class="fn">on_register_dispatch</a>(&amp;self, subscriber: &amp;<a class="struct" href="../../tracing_core/dispatcher/struct.Dispatch.html" title="struct tracing_core::dispatcher::Dispatch">Dispatch</a>)</h4></section></summary><div class='docblock'>Invoked when this subscriber becomes a <a href="../../tracing_core/dispatcher/struct.Dispatch.html" title="struct tracing_core::dispatcher::Dispatch"><code>Dispatch</code></a>. <a href="../../tracing_core/subscriber/trait.Subscriber.html#method.on_register_dispatch">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.downcast_raw" class="method trait-impl"><a class="src rightside" href="../../src/tracing_core/subscriber.rs.html#495">source</a><a href="#method.downcast_raw" class="anchor">§</a><h4 class="code-header">unsafe fn <a href="../../tracing_core/subscriber/trait.Subscriber.html#method.downcast_raw" class="fn">downcast_raw</a>(&amp;self, id: <a class="struct" href="https://doc.rust-lang.org/1.77.0/core/any/struct.TypeId.html" title="struct core::any::TypeId">TypeId</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.77.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.77.0/std/primitive.pointer.html">*const </a><a class="primitive" href="https://doc.rust-lang.org/1.77.0/std/primitive.unit.html">()</a>&gt;</h4></section></summary><div class='docblock'>If <code>self</code> is the same type as the provided <code>TypeId</code>, returns an untyped
<code>*const</code> pointer to that type. Otherwise, returns <code>None</code>. <a href="../../tracing_core/subscriber/trait.Subscriber.html#method.downcast_raw">Read more</a></div></details></div></details></div><h2 id="synthetic-implementations" class="section-header">Auto Trait Implementations<a href="#synthetic-implementations" class="anchor">§</a></h2><div id="synthetic-implementations-list"><section id="impl-RefUnwindSafe-for-Layered%3CL,+I,+S%3E" class="impl"><a href="#impl-RefUnwindSafe-for-Layered%3CL,+I,+S%3E" class="anchor">§</a><h3 class="code-header">impl&lt;L, I, S&gt; <a class="trait" href="https://doc.rust-lang.org/1.77.0/core/panic/unwind_safe/trait.RefUnwindSafe.html" title="trait core::panic::unwind_safe::RefUnwindSafe">RefUnwindSafe</a> for <a class="struct" href="struct.Layered.html" title="struct tracing_subscriber::layer::Layered">Layered</a>&lt;L, I, S&gt;<div class="where">where
I: <a class="trait" href="https://doc.rust-lang.org/1.77.0/core/panic/unwind_safe/trait.RefUnwindSafe.html" title="trait core::panic::unwind_safe::RefUnwindSafe">RefUnwindSafe</a>,
L: <a class="trait" href="https://doc.rust-lang.org/1.77.0/core/panic/unwind_safe/trait.RefUnwindSafe.html" title="trait core::panic::unwind_safe::RefUnwindSafe">RefUnwindSafe</a>,</div></h3></section><section id="impl-Send-for-Layered%3CL,+I,+S%3E" class="impl"><a href="#impl-Send-for-Layered%3CL,+I,+S%3E" class="anchor">§</a><h3 class="code-header">impl&lt;L, I, S&gt; <a class="trait" href="https://doc.rust-lang.org/1.77.0/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> for <a class="struct" href="struct.Layered.html" title="struct tracing_subscriber::layer::Layered">Layered</a>&lt;L, I, S&gt;<div class="where">where
I: <a class="trait" href="https://doc.rust-lang.org/1.77.0/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a>,
L: <a class="trait" href="https://doc.rust-lang.org/1.77.0/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a>,</div></h3></section><section id="impl-Sync-for-Layered%3CL,+I,+S%3E" class="impl"><a href="#impl-Sync-for-Layered%3CL,+I,+S%3E" class="anchor">§</a><h3 class="code-header">impl&lt;L, I, S&gt; <a class="trait" href="https://doc.rust-lang.org/1.77.0/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> for <a class="struct" href="struct.Layered.html" title="struct tracing_subscriber::layer::Layered">Layered</a>&lt;L, I, S&gt;<div class="where">where
I: <a class="trait" href="https://doc.rust-lang.org/1.77.0/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a>,
L: <a class="trait" href="https://doc.rust-lang.org/1.77.0/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a>,</div></h3></section><section id="impl-Unpin-for-Layered%3CL,+I,+S%3E" class="impl"><a href="#impl-Unpin-for-Layered%3CL,+I,+S%3E" class="anchor">§</a><h3 class="code-header">impl&lt;L, I, S&gt; <a class="trait" href="https://doc.rust-lang.org/1.77.0/core/marker/trait.Unpin.html" title="trait core::marker::Unpin">Unpin</a> for <a class="struct" href="struct.Layered.html" title="struct tracing_subscriber::layer::Layered">Layered</a>&lt;L, I, S&gt;<div class="where">where
I: <a class="trait" href="https://doc.rust-lang.org/1.77.0/core/marker/trait.Unpin.html" title="trait core::marker::Unpin">Unpin</a>,
L: <a class="trait" href="https://doc.rust-lang.org/1.77.0/core/marker/trait.Unpin.html" title="trait core::marker::Unpin">Unpin</a>,</div></h3></section><section id="impl-UnwindSafe-for-Layered%3CL,+I,+S%3E" class="impl"><a href="#impl-UnwindSafe-for-Layered%3CL,+I,+S%3E" class="anchor">§</a><h3 class="code-header">impl&lt;L, I, S&gt; <a class="trait" href="https://doc.rust-lang.org/1.77.0/core/panic/unwind_safe/trait.UnwindSafe.html" title="trait core::panic::unwind_safe::UnwindSafe">UnwindSafe</a> for <a class="struct" href="struct.Layered.html" title="struct tracing_subscriber::layer::Layered">Layered</a>&lt;L, I, S&gt;<div class="where">where
I: <a class="trait" href="https://doc.rust-lang.org/1.77.0/core/panic/unwind_safe/trait.UnwindSafe.html" title="trait core::panic::unwind_safe::UnwindSafe">UnwindSafe</a>,
L: <a class="trait" href="https://doc.rust-lang.org/1.77.0/core/panic/unwind_safe/trait.UnwindSafe.html" title="trait core::panic::unwind_safe::UnwindSafe">UnwindSafe</a>,</div></h3></section></div><h2 id="blanket-implementations" class="section-header">Blanket Implementations<a href="#blanket-implementations" class="anchor">§</a></h2><div id="blanket-implementations-list"><details class="toggle implementors-toggle"><summary><section id="impl-Any-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.77.0/src/core/any.rs.html#140">source</a><a href="#impl-Any-for-T" class="anchor">§</a><h3 class="code-header">impl&lt;T&gt; <a class="trait" href="https://doc.rust-lang.org/1.77.0/core/any/trait.Any.html" title="trait core::any::Any">Any</a> for T<div class="where">where
T: 'static + ?<a class="trait" href="https://doc.rust-lang.org/1.77.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.type_id" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.77.0/src/core/any.rs.html#141">source</a><a href="#method.type_id" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.77.0/core/any/trait.Any.html#tymethod.type_id" class="fn">type_id</a>(&amp;self) -&gt; <a class="struct" href="https://doc.rust-lang.org/1.77.0/core/any/struct.TypeId.html" title="struct core::any::TypeId">TypeId</a></h4></section></summary><div class='docblock'>Gets the <code>TypeId</code> of <code>self</code>. <a href="https://doc.rust-lang.org/1.77.0/core/any/trait.Any.html#tymethod.type_id">Read more</a></div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Borrow%3CT%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.77.0/src/core/borrow.rs.html#208">source</a><a href="#impl-Borrow%3CT%3E-for-T" class="anchor">§</a><h3 class="code-header">impl&lt;T&gt; <a class="trait" href="https://doc.rust-lang.org/1.77.0/core/borrow/trait.Borrow.html" title="trait core::borrow::Borrow">Borrow</a>&lt;T&gt; for T<div class="where">where
T: ?<a class="trait" href="https://doc.rust-lang.org/1.77.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.borrow" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.77.0/src/core/borrow.rs.html#210">source</a><a href="#method.borrow" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.77.0/core/borrow/trait.Borrow.html#tymethod.borrow" class="fn">borrow</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/1.77.0/std/primitive.reference.html">&amp;T</a></h4></section></summary><div class='docblock'>Immutably borrows from an owned value. <a href="https://doc.rust-lang.org/1.77.0/core/borrow/trait.Borrow.html#tymethod.borrow">Read more</a></div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-BorrowMut%3CT%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.77.0/src/core/borrow.rs.html#216">source</a><a href="#impl-BorrowMut%3CT%3E-for-T" class="anchor">§</a><h3 class="code-header">impl&lt;T&gt; <a class="trait" href="https://doc.rust-lang.org/1.77.0/core/borrow/trait.BorrowMut.html" title="trait core::borrow::BorrowMut">BorrowMut</a>&lt;T&gt; for T<div class="where">where
T: ?<a class="trait" href="https://doc.rust-lang.org/1.77.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.borrow_mut" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.77.0/src/core/borrow.rs.html#217">source</a><a href="#method.borrow_mut" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.77.0/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut" class="fn">borrow_mut</a>(&amp;mut self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/1.77.0/std/primitive.reference.html">&amp;mut T</a></h4></section></summary><div class='docblock'>Mutably borrows from an owned value. <a href="https://doc.rust-lang.org/1.77.0/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut">Read more</a></div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-From%3CT%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.77.0/src/core/convert/mod.rs.html#764">source</a><a href="#impl-From%3CT%3E-for-T" class="anchor">§</a><h3 class="code-header">impl&lt;T&gt; <a class="trait" href="https://doc.rust-lang.org/1.77.0/core/convert/trait.From.html" title="trait core::convert::From">From</a>&lt;T&gt; for T</h3></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/1.77.0/src/core/convert/mod.rs.html#767">source</a><a href="#method.from" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.77.0/core/convert/trait.From.html#tymethod.from" class="fn">from</a>(t: T) -&gt; T</h4></section></summary><div class="docblock"><p>Returns the argument unchanged.</p>
</div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Instrument-for-T" class="impl"><a class="src rightside" href="../../src/tracing/instrument.rs.html#325">source</a><a href="#impl-Instrument-for-T" class="anchor">§</a><h3 class="code-header">impl&lt;T&gt; <a class="trait" href="../../tracing/instrument/trait.Instrument.html" title="trait tracing::instrument::Instrument">Instrument</a> for T</h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.instrument" class="method trait-impl"><a class="src rightside" href="../../src/tracing/instrument.rs.html#86">source</a><a href="#method.instrument" class="anchor">§</a><h4 class="code-header">fn <a href="../../tracing/instrument/trait.Instrument.html#method.instrument" class="fn">instrument</a>(self, span: <a class="struct" href="../../tracing/span/struct.Span.html" title="struct tracing::span::Span">Span</a>) -&gt; <a class="struct" href="../../tracing/instrument/struct.Instrumented.html" title="struct tracing::instrument::Instrumented">Instrumented</a>&lt;Self&gt;</h4></section></summary><div class='docblock'>Instruments this type with the provided <a href="../../tracing/span/struct.Span.html" title="struct tracing::span::Span"><code>Span</code></a>, returning an
<code>Instrumented</code> wrapper. <a href="../../tracing/instrument/trait.Instrument.html#method.instrument">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.in_current_span" class="method trait-impl"><a class="src rightside" href="../../src/tracing/instrument.rs.html#128">source</a><a href="#method.in_current_span" class="anchor">§</a><h4 class="code-header">fn <a href="../../tracing/instrument/trait.Instrument.html#method.in_current_span" class="fn">in_current_span</a>(self) -&gt; <a class="struct" href="../../tracing/instrument/struct.Instrumented.html" title="struct tracing::instrument::Instrumented">Instrumented</a>&lt;Self&gt;</h4></section></summary><div class='docblock'>Instruments this type with the <a href="../../tracing/span/struct.Span.html#method.current" title="associated function tracing::span::Span::current">current</a> <a href="../../tracing/span/struct.Span.html" title="struct tracing::span::Span"><code>Span</code></a>, returning an
<code>Instrumented</code> wrapper. <a href="../../tracing/instrument/trait.Instrument.html#method.in_current_span">Read more</a></div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Into%3CU%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.77.0/src/core/convert/mod.rs.html#747-749">source</a><a href="#impl-Into%3CU%3E-for-T" class="anchor">§</a><h3 class="code-header">impl&lt;T, U&gt; <a class="trait" href="https://doc.rust-lang.org/1.77.0/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a>&lt;U&gt; for T<div class="where">where
U: <a class="trait" href="https://doc.rust-lang.org/1.77.0/core/convert/trait.From.html" title="trait core::convert::From">From</a>&lt;T&gt;,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.into" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.77.0/src/core/convert/mod.rs.html#757">source</a><a href="#method.into" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.77.0/core/convert/trait.Into.html#tymethod.into" class="fn">into</a>(self) -&gt; U</h4></section></summary><div class="docblock"><p>Calls <code>U::from(self)</code>.</p>
<p>That is, this conversion is whatever the implementation of
<code><a href="https://doc.rust-lang.org/1.77.0/core/convert/trait.From.html" title="trait core::convert::From">From</a>&lt;T&gt; for U</code> chooses to do.</p>
</div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-SubscriberExt-for-S" class="impl"><a class="src rightside" href="../../src/tracing_subscriber/layer/mod.rs.html#1898">source</a><a href="#impl-SubscriberExt-for-S" class="anchor">§</a><h3 class="code-header">impl&lt;S&gt; <a class="trait" href="trait.SubscriberExt.html" title="trait tracing_subscriber::layer::SubscriberExt">SubscriberExt</a> for S<div class="where">where
S: <a class="trait" href="../../tracing_core/subscriber/trait.Subscriber.html" title="trait tracing_core::subscriber::Subscriber">Subscriber</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.with" class="method trait-impl"><a class="src rightside" href="../../src/tracing_subscriber/layer/mod.rs.html#1501-1507">source</a><a href="#method.with" class="anchor">§</a><h4 class="code-header">fn <a href="trait.SubscriberExt.html#method.with" class="fn">with</a>&lt;L&gt;(self, layer: L) -&gt; <a class="struct" href="struct.Layered.html" title="struct tracing_subscriber::layer::Layered">Layered</a>&lt;L, Self&gt;<div class="where">where
L: <a class="trait" href="trait.Layer.html" title="trait tracing_subscriber::layer::Layer">Layer</a>&lt;Self&gt;,
Self: <a class="trait" href="https://doc.rust-lang.org/1.77.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h4></section></summary><div class='docblock'>Wraps <code>self</code> with the provided <code>layer</code>.</div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-SubscriberInitExt-for-T" class="impl"><a class="src rightside" href="../../src/tracing_subscriber/util.rs.html#95">source</a><a href="#impl-SubscriberInitExt-for-T" class="anchor">§</a><h3 class="code-header">impl&lt;T&gt; <a class="trait" href="../util/trait.SubscriberInitExt.html" title="trait tracing_subscriber::util::SubscriberInitExt">SubscriberInitExt</a> for T<div class="where">where
T: <a class="trait" href="https://doc.rust-lang.org/1.77.0/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a>&lt;<a class="struct" href="../../tracing_core/dispatcher/struct.Dispatch.html" title="struct tracing_core::dispatcher::Dispatch">Dispatch</a>&gt;,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.set_default" class="method trait-impl"><a class="src rightside" href="../../src/tracing_subscriber/util.rs.html#38-43">source</a><a href="#method.set_default" class="anchor">§</a><h4 class="code-header">fn <a href="../util/trait.SubscriberInitExt.html#method.set_default" class="fn">set_default</a>(self) -&gt; <a class="struct" href="../../tracing_core/dispatcher/struct.DefaultGuard.html" title="struct tracing_core::dispatcher::DefaultGuard">DefaultGuard</a></h4></section></summary><div class='docblock'>Sets <code>self</code> as the <a href="https://docs.rs/tracing/0.1.21/tracing/dispatcher/index.html#setting-the-default-subscriber">default subscriber</a> in the current scope, returning a
guard that will unset it when dropped. <a href="../util/trait.SubscriberInitExt.html#method.set_default">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.try_init" class="method trait-impl"><a class="src rightside" href="../../src/tracing_subscriber/util.rs.html#58-74">source</a><a href="#method.try_init" class="anchor">§</a><h4 class="code-header">fn <a href="../util/trait.SubscriberInitExt.html#method.try_init" class="fn">try_init</a>(self) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.77.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.77.0/std/primitive.unit.html">()</a>, <a class="struct" href="../util/struct.TryInitError.html" title="struct tracing_subscriber::util::TryInitError">TryInitError</a>&gt;</h4></section></summary><div class='docblock'>Attempts to set <code>self</code> as the <a href="https://docs.rs/tracing/0.1.21/tracing/dispatcher/index.html#setting-the-default-subscriber">global default subscriber</a> in the current
scope, returning an error if one is already set. <a href="../util/trait.SubscriberInitExt.html#method.try_init">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.init" class="method trait-impl"><a class="src rightside" href="../../src/tracing_subscriber/util.rs.html#89-92">source</a><a href="#method.init" class="anchor">§</a><h4 class="code-header">fn <a href="../util/trait.SubscriberInitExt.html#method.init" class="fn">init</a>(self)</h4></section></summary><div class='docblock'>Attempts to set <code>self</code> as the <a href="https://docs.rs/tracing/0.1.21/tracing/dispatcher/index.html#setting-the-default-subscriber">global default subscriber</a> in the current
scope, panicking if this fails. <a href="../util/trait.SubscriberInitExt.html#method.init">Read more</a></div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-ToOwned-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.77.0/src/alloc/borrow.rs.html#83-85">source</a><a href="#impl-ToOwned-for-T" class="anchor">§</a><h3 class="code-header">impl&lt;T&gt; <a class="trait" href="https://doc.rust-lang.org/1.77.0/alloc/borrow/trait.ToOwned.html" title="trait alloc::borrow::ToOwned">ToOwned</a> for T<div class="where">where
T: <a class="trait" href="https://doc.rust-lang.org/1.77.0/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle" open><summary><section id="associatedtype.Owned" class="associatedtype trait-impl"><a href="#associatedtype.Owned" class="anchor">§</a><h4 class="code-header">type <a href="https://doc.rust-lang.org/1.77.0/alloc/borrow/trait.ToOwned.html#associatedtype.Owned" class="associatedtype">Owned</a> = T</h4></section></summary><div class='docblock'>The resulting type after obtaining ownership.</div></details><details class="toggle method-toggle" open><summary><section id="method.to_owned" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.77.0/src/alloc/borrow.rs.html#88">source</a><a href="#method.to_owned" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.77.0/alloc/borrow/trait.ToOwned.html#tymethod.to_owned" class="fn">to_owned</a>(&amp;self) -&gt; T</h4></section></summary><div class='docblock'>Creates owned data from borrowed data, usually by cloning. <a href="https://doc.rust-lang.org/1.77.0/alloc/borrow/trait.ToOwned.html#tymethod.to_owned">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.clone_into" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.77.0/src/alloc/borrow.rs.html#92">source</a><a href="#method.clone_into" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.77.0/alloc/borrow/trait.ToOwned.html#method.clone_into" class="fn">clone_into</a>(&amp;self, target: <a class="primitive" href="https://doc.rust-lang.org/1.77.0/std/primitive.reference.html">&amp;mut T</a>)</h4></section></summary><div class='docblock'>Uses borrowed data to replace owned data, usually by cloning. <a href="https://doc.rust-lang.org/1.77.0/alloc/borrow/trait.ToOwned.html#method.clone_into">Read more</a></div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-TryFrom%3CU%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.77.0/src/core/convert/mod.rs.html#804-806">source</a><a href="#impl-TryFrom%3CU%3E-for-T" class="anchor">§</a><h3 class="code-header">impl&lt;T, U&gt; <a class="trait" href="https://doc.rust-lang.org/1.77.0/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a>&lt;U&gt; for T<div class="where">where
U: <a class="trait" href="https://doc.rust-lang.org/1.77.0/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a>&lt;T&gt;,</div></h3></section></summary><div class="impl-items"><details class="toggle" open><summary><section id="associatedtype.Error-1" class="associatedtype trait-impl"><a href="#associatedtype.Error-1" class="anchor">§</a><h4 class="code-header">type <a href="https://doc.rust-lang.org/1.77.0/core/convert/trait.TryFrom.html#associatedtype.Error" class="associatedtype">Error</a> = <a class="enum" href="https://doc.rust-lang.org/1.77.0/core/convert/enum.Infallible.html" title="enum core::convert::Infallible">Infallible</a></h4></section></summary><div class='docblock'>The type returned in the event of a conversion error.</div></details><details class="toggle method-toggle" open><summary><section id="method.try_from" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.77.0/src/core/convert/mod.rs.html#811">source</a><a href="#method.try_from" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.77.0/core/convert/trait.TryFrom.html#tymethod.try_from" class="fn">try_from</a>(value: U) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.77.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;T, &lt;T as <a class="trait" href="https://doc.rust-lang.org/1.77.0/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a>&lt;U&gt;&gt;::<a class="associatedtype" href="https://doc.rust-lang.org/1.77.0/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>&gt;</h4></section></summary><div class='docblock'>Performs the conversion.</div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-TryInto%3CU%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.77.0/src/core/convert/mod.rs.html#789-791">source</a><a href="#impl-TryInto%3CU%3E-for-T" class="anchor">§</a><h3 class="code-header">impl&lt;T, U&gt; <a class="trait" href="https://doc.rust-lang.org/1.77.0/core/convert/trait.TryInto.html" title="trait core::convert::TryInto">TryInto</a>&lt;U&gt; for T<div class="where">where
U: <a class="trait" href="https://doc.rust-lang.org/1.77.0/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a>&lt;T&gt;,</div></h3></section></summary><div class="impl-items"><details class="toggle" open><summary><section id="associatedtype.Error" class="associatedtype trait-impl"><a href="#associatedtype.Error" class="anchor">§</a><h4 class="code-header">type <a href="https://doc.rust-lang.org/1.77.0/core/convert/trait.TryInto.html#associatedtype.Error" class="associatedtype">Error</a> = &lt;U as <a class="trait" href="https://doc.rust-lang.org/1.77.0/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a>&lt;T&gt;&gt;::<a class="associatedtype" href="https://doc.rust-lang.org/1.77.0/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a></h4></section></summary><div class='docblock'>The type returned in the event of a conversion error.</div></details><details class="toggle method-toggle" open><summary><section id="method.try_into" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.77.0/src/core/convert/mod.rs.html#796">source</a><a href="#method.try_into" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.77.0/core/convert/trait.TryInto.html#tymethod.try_into" class="fn">try_into</a>(self) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.77.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;U, &lt;U as <a class="trait" href="https://doc.rust-lang.org/1.77.0/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a>&lt;T&gt;&gt;::<a class="associatedtype" href="https://doc.rust-lang.org/1.77.0/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>&gt;</h4></section></summary><div class='docblock'>Performs the conversion.</div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-WithSubscriber-for-T" class="impl"><a class="src rightside" href="../../src/tracing/instrument.rs.html#393">source</a><a href="#impl-WithSubscriber-for-T" class="anchor">§</a><h3 class="code-header">impl&lt;T&gt; <a class="trait" href="../../tracing/instrument/trait.WithSubscriber.html" title="trait tracing::instrument::WithSubscriber">WithSubscriber</a> for T</h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.with_subscriber-1" class="method trait-impl"><a class="src rightside" href="../../src/tracing/instrument.rs.html#176-178">source</a><a href="#method.with_subscriber-1" class="anchor">§</a><h4 class="code-header">fn <a href="../../tracing/instrument/trait.WithSubscriber.html#method.with_subscriber" class="fn">with_subscriber</a>&lt;S&gt;(self, subscriber: S) -&gt; <a class="struct" href="../../tracing/instrument/struct.WithDispatch.html" title="struct tracing::instrument::WithDispatch">WithDispatch</a>&lt;Self&gt;<div class="where">where
S: <a class="trait" href="https://doc.rust-lang.org/1.77.0/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a>&lt;<a class="struct" href="../../tracing_core/dispatcher/struct.Dispatch.html" title="struct tracing_core::dispatcher::Dispatch">Dispatch</a>&gt;,</div></h4></section></summary><div class='docblock'>Attaches the provided <a href="../../tracing_core/subscriber/trait.Subscriber.html" title="trait tracing_core::subscriber::Subscriber"><code>Subscriber</code></a> to this type, returning a
<a href="../../tracing/instrument/struct.WithDispatch.html" title="struct tracing::instrument::WithDispatch"><code>WithDispatch</code></a> wrapper. <a href="../../tracing/instrument/trait.WithSubscriber.html#method.with_subscriber">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.with_current_subscriber" class="method trait-impl"><a class="src rightside" href="../../src/tracing/instrument.rs.html#228">source</a><a href="#method.with_current_subscriber" class="anchor">§</a><h4 class="code-header">fn <a href="../../tracing/instrument/trait.WithSubscriber.html#method.with_current_subscriber" class="fn">with_current_subscriber</a>(self) -&gt; <a class="struct" href="../../tracing/instrument/struct.WithDispatch.html" title="struct tracing::instrument::WithDispatch">WithDispatch</a>&lt;Self&gt;</h4></section></summary><div class='docblock'>Attaches the current <a href="../../tracing/dispatcher/index.html#setting-the-default-subscriber" title="mod tracing::dispatcher">default</a> <a href="../../tracing_core/subscriber/trait.Subscriber.html" title="trait tracing_core::subscriber::Subscriber"><code>Subscriber</code></a> to this type, returning a
<a href="../../tracing/instrument/struct.WithDispatch.html" title="struct tracing::instrument::WithDispatch"><code>WithDispatch</code></a> wrapper. <a href="../../tracing/instrument/trait.WithSubscriber.html#method.with_current_subscriber">Read more</a></div></details></div></details></div></section></div></main></body></html>
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