<!DOCTYPE html><htmllang="en"><head><metacharset="utf-8"><metaname="viewport"content="width=device-width, initial-scale=1.0"><metaname="generator"content="rustdoc"><metaname="description"content="`Dispatch` trace data to a `Subscriber`."><title>Dispatch in tracing - Rust</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-46f98efaafac5295.ttf.woff2,FiraSans-Regular-018c141bf0843ffd.woff2,FiraSans-Medium-8f9a781e4970d388.woff2,SourceCodePro-Regular-562dcc5011b6de7d.ttf.woff2,SourceCodePro-Semibold-d899c5a5c4aeb14a.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2" crossorigin href="../static.files/${f}">`).join(""))</script><linkrel="stylesheet"href="../static.files/normalize-76eba96aa4d2e634.css"><linkrel="stylesheet"href="../static.files/rustdoc-dd39b87e5fcfba68.css"><metaname="rustdoc-vars"data-root-path="../"data-static-root-path="../static.files/"data-current-crate="tracing"data-themes=""data-resource-suffix=""data-rustdoc-version="1.80.0 (051478957 2024-07-21)"data-channel="1.80.0"data-search-js="search-d52510db62a78183.js"data-settings-js="settings-4313503d2e1961c2.js"><scriptsrc="../static.files/storage-118b08c4c78b968e.js"></script><scriptdefersrc="sidebar-items.js"></script><scriptdefersrc="../static.files/main-20a3ad099b048cf2.js"></script><noscript><linkrel="stylesheet"href="../static.files/noscript-df360f571f6edeae.css"></noscript><linkrel="alternate icon"type="image/png"href="../static.files/favicon-32x32-422f7d1d52889060.png"><linkrel="icon"type="image/svg+xml"href="../static.files/favicon-2c020d218678b618.svg"></head><bodyclass="rustdoc struct"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><navclass="mobile-topbar"><buttonclass="sidebar-menu-toggle"title="show sidebar"></button><aclass="logo-container"href="../tracing/index.html"><imgsrc="https://raw.githubusercontent.com/tokio-rs/tracing/master/assets/logo-type.png"alt=""></a></nav><navclass="sidebar"><divclass="sidebar-crate"><aclass="logo-container"href="../tracing/index.html"><imgsrc="https://raw.githubusercontent.com/tokio-rs/tracing/master/assets/logo-type.png"alt="logo"></a><h2><ahref="../tracing/index.html">tracing</a><spanclass="version">0.1.40</span></h2></div><h2class="location"><ahref="#">Dispatch</a></h2><divclass="sidebar-elems"><section><h3><ahref="#implementations">Methods</a></h3><ulclass="block method"><li><ahref="#method.clone_span">clone_span</a></li><li><ahref="#method.current_span">current_span</a></li><li><ahref="#method.downcast_ref">downcast_ref</a></li><li><ahref="#method.downgrade">downgrade</a></li><li><ahref="#method.drop_span">drop_span</a></li><li><ahref="#method.enabled">enabled</a></li><li><ahref="#method.enter">enter</a></li><li><ahref="#method.event">event</a></li><li><ahref="#method.exit">exit</a></li><li><ahref="#method.is">is</a></li><li><ahref="#method.new">new</a></li><li><ahref="#method.new_span">new_span</a></li><li><ahref="#method.none">none</a></li><li><ahref="#method.record">record</a></li><li><ahref="#method.record_follows_from">record_follows_from</a></li><li><ahref="#method.register_callsite">register_callsite</a></li><li><ahref="#method.try_close">try_close</a></li></ul><h3><ahref="#trait-implementations">Trait Implementations</a></h3><ulclass="block trait-implementation"><li><ahref="#impl-Clone-for-Dispatch">Clone</a></li><li><ahref="#impl-Debug-for-Dispatch">Debug</a></li><li><ahref="#impl-Default-for-Dispatch">Default</a></li><li><ahref="#impl-From%3CS%3E-for-Dispatch">From<S></a></li></ul><h3><ahref="#synthetic-implementations">Auto Trait Implementations</a></h3><ulclass="block synthetic-implementation"><li><ahref="#impl-RefUnwindSafe-for-Dispatch">!RefUnwindSafe</a></li><li><ahref="#impl-UnwindSafe-for-Dispatch">!UnwindSafe</a></li><li><ahref="#impl-Freeze-for-Dispatch">Freeze</a></li><li><ahref="#impl-Send-for-Dispatch">Send</a></li>
</div></details><h2id="implementations"class="section-header">Implementations<ahref="#implementations"class="anchor">§</a></h2><divid="implementations-list"><detailsclass="toggle implementors-toggle"open><summary><sectionid="impl-Dispatch"class="impl"><aclass="src rightside"href="../src/tracing_core/dispatcher.rs.html#465">source</a><ahref="#impl-Dispatch"class="anchor">§</a><h3class="code-header">impl <aclass="struct"href="struct.Dispatch.html"title="struct tracing::Dispatch">Dispatch</a></h3></section></summary><divclass="impl-items"><detailsclass="toggle method-toggle"open><summary><sectionid="method.none"class="method"><aclass="src rightside"href="../src/tracing_core/dispatcher.rs.html#468">source</a><h4class="code-header">pub fn <ahref="#method.none"class="fn">none</a>() -><aclass="struct"href="struct.Dispatch.html"title="struct tracing::Dispatch">Dispatch</a></h4></section></summary><divclass="docblock"><p>Returns a new <code>Dispatch</code> that discards events and spans.</p>
S: <aclass="trait"href="trait.Subscriber.html"title="trait tracing::Subscriber">Subscriber</a> + <aclass="trait"href="https://doc.rust-lang.org/1.80.0/core/marker/trait.Send.html"title="trait core::marker::Send">Send</a> + <aclass="trait"href="https://doc.rust-lang.org/1.80.0/core/marker/trait.Sync.html"title="trait core::marker::Sync">Sync</a> + 'static,</div></h4></section></summary><divclass="docblock"><p>Returns a <code>Dispatch</code> that forwards to the given <ahref="trait.Subscriber.html"title="trait tracing::Subscriber"><code>Subscriber</code></a>.</p>
</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.downgrade"class="method"><aclass="src rightside"href="../src/tracing_core/dispatcher.rs.html#507">source</a><h4class="code-header">pub fn <ahref="#method.downgrade"class="fn">downgrade</a>(&self) -><aclass="struct"href="dispatcher/struct.WeakDispatch.html"title="struct tracing::dispatcher::WeakDispatch">WeakDispatch</a></h4></section></summary><divclass="docblock"><p>Creates a <ahref="dispatcher/struct.WeakDispatch.html"title="struct tracing::dispatcher::WeakDispatch"><code>WeakDispatch</code></a> from this <code>Dispatch</code>.</p>
<p>A <ahref="dispatcher/struct.WeakDispatch.html"title="struct tracing::dispatcher::WeakDispatch"><code>WeakDispatch</code></a> is similar to a <ahref="struct.Dispatch.html"title="struct tracing::Dispatch"><code>Dispatch</code></a>, but it does not prevent
the underlying <ahref="trait.Subscriber.html"title="trait tracing::Subscriber"><code>Subscriber</code></a> from being dropped. Instead, it only permits
access while other references to the <code>Subscriber</code> exist. This is equivalent
to the standard library’s <ahref="https://doc.rust-lang.org/1.80.0/alloc/sync/struct.Arc.html#method.downgrade"title="associated function alloc::sync::Arc::downgrade"><code>Arc::downgrade</code></a> method, but for <code>Dispatch</code>
<p>The primary use for creating a <ahref="dispatcher/struct.WeakDispatch.html"title="struct tracing::dispatcher::WeakDispatch"><code>WeakDispatch</code></a> is to allow a <code>Subscriber</code>
to hold a cyclical reference to itself without creating a memory leak.
See <ahref="trait.Subscriber.html#avoiding-memory-leaks"title="trait tracing::Subscriber">here</a> for details.</p>
) -><aclass="struct"href="subscriber/struct.Interest.html"title="struct tracing::subscriber::Interest">Interest</a></h4></section></summary><divclass="docblock"><p>Registers a new callsite with this subscriber, returning whether or not
the subscriber is interested in being notified about the callsite.</p>
<p>This calls the <ahref="trait.Subscriber.html#method.register_callsite"title="method tracing::Subscriber::register_callsite"><code>register_callsite</code></a> function on the <ahref="trait.Subscriber.html"title="trait tracing::Subscriber"><code>Subscriber</code></a>
that this <code>Dispatch</code> forwards to.</p>
</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.new_span"class="method"><aclass="src rightside"href="../src/tracing_core/dispatcher.rs.html#560">source</a><h4class="code-header">pub fn <ahref="#method.new_span"class="fn">new_span</a>(&self, span: &<aclass="struct"href="span/struct.Attributes.html"title="struct tracing::span::Attributes">Attributes</a><'_>) -><aclass="struct"href="span/struct.Id.html"title="struct tracing::span::Id">Id</a></h4></section></summary><divclass="docblock"><p>Record the construction of a new span, returning a new <ahref="span/struct.Id.html"title="struct tracing::span::Id">ID</a> for the
span being constructed.</p>
<p>This calls the <ahref="trait.Subscriber.html#tymethod.new_span"title="method tracing::Subscriber::new_span"><code>new_span</code></a> function on the <ahref="trait.Subscriber.html"title="trait tracing::Subscriber"><code>Subscriber</code></a> that this
<code>Dispatch</code> forwards to.</p>
</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.record"class="method"><aclass="src rightside"href="../src/tracing_core/dispatcher.rs.html#572">source</a><h4class="code-header">pub fn <ahref="#method.record"class="fn">record</a>(&self, span: &<aclass="struct"href="span/struct.Id.html"title="struct tracing::span::Id">Id</a>, values: &<aclass="struct"href="span/struct.Record.html"title="struct tracing::span::Record">Record</a><'_>)</h4></section></summary><divclass="docblock"><p>Record a set of values on a span.</p>
<p>This calls the <ahref="trait.Subscriber.html#tymethod.record"title="method tracing::Subscriber::record"><code>record</code></a> function on the <ahref="trait.Subscriber.html"title="trait tracing::Subscriber"><code>Subscriber</code></a> that this
<code>Dispatch</code> forwards to.</p>
</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.record_follows_from"class="method"><aclass="src rightside"href="../src/tracing_core/dispatcher.rs.html#585">source</a><h4class="code-header">pub fn <ahref="#method.record_follows_from"class="fn">record_follows_from</a>(&self, span: &<aclass="struct"href="span/struct.Id.html"title="struct tracing::span::Id">Id</a>, follows: &<aclass="struct"href="span/struct.Id.html"title="struct tracing::span::Id">Id</a>)</h4></section></summary><divclass="docblock"><p>Adds an indication that <code>span</code> follows from the span with the id
<code>follows</code>.</p>
<p>This calls the <ahref="trait.Subscriber.html#tymethod.record_follows_from"title="method tracing::Subscriber::record_follows_from"><code>record_follows_from</code></a> function on the <ahref="trait.Subscriber.html"title="trait tracing::Subscriber"><code>Subscriber</code></a>
</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.enabled"class="method"><aclass="src rightside"href="../src/tracing_core/dispatcher.rs.html#599">source</a><h4class="code-header">pub fn <ahref="#method.enabled"class="fn">enabled</a>(&self, metadata: &<aclass="struct"href="struct.Metadata.html"title="struct tracing::Metadata">Metadata</a><'_>) -><aclass="primitive"href="https://doc.rust-lang.org/1.80.0/std/primitive.bool.html">bool</a></h4></section></summary><divclass="docblock"><p>Returns true if a span with the specified <ahref="struct.Metadata.html"title="struct tracing::Metadata">metadata</a> would be
<p>This calls the <ahref="trait.Subscriber.html#tymethod.enabled"title="method tracing::Subscriber::enabled"><code>enabled</code></a> function on the <ahref="trait.Subscriber.html"title="trait tracing::Subscriber"><code>Subscriber</code></a> that this
<code>Dispatch</code> forwards to.</p>
</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.event"class="method"><aclass="src rightside"href="../src/tracing_core/dispatcher.rs.html#612">source</a><h4class="code-header">pub fn <ahref="#method.event"class="fn">event</a>(&self, event: &<aclass="struct"href="event/struct.Event.html"title="struct tracing::event::Event">Event</a><'_>)</h4></section></summary><divclass="docblock"><p>Records that an <ahref="event/struct.Event.html"title="struct tracing::event::Event"><code>Event</code></a> has occurred.</p>
<p>This calls the <ahref="event/struct.Event.html"title="struct tracing::event::Event"><code>event</code></a> function on the <ahref="trait.Subscriber.html"title="trait tracing::Subscriber"><code>Subscriber</code></a> that this
<code>Dispatch</code> forwards to.</p>
</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.enter"class="method"><aclass="src rightside"href="../src/tracing_core/dispatcher.rs.html#626">source</a><h4class="code-header">pub fn <ahref="#method.enter"class="fn">enter</a>(&self, span: &<aclass="struct"href="span/struct.Id.html"title="struct tracing::span::Id">Id</a>)</h4></section></summary><divclass="docblock"><p>Records that a span has been can_enter.</p>
<p>This calls the <ahref="trait.Subscriber.html#tymethod.enter"title="method tracing::Subscriber::enter"><code>enter</code></a> function on the <ahref="trait.Subscriber.html"title="trait tracing::Subscriber"><code>Subscriber</code></a> that this
<code>Dispatch</code> forwards to.</p>
</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.exit"class="method"><aclass="src rightside"href="../src/tracing_core/dispatcher.rs.html#637">source</a><h4class="code-header">pub fn <ahref="#method.exit"class="fn">exit</a>(&self, span: &<aclass="struct"href="span/struct.Id.html"title="struct tracing::span::Id">Id</a>)</h4></section></summary><divclass="docblock"><p>Records that a span has been exited.</p>
<p>This calls the <ahref="trait.Subscriber.html#tymethod.exit"title="method tracing::Subscriber::exit"><code>exit</code></a> function on the <ahref="trait.Subscriber.html"title="trait tracing::Subscriber"><code>Subscriber</code></a> that this
<code>Dispatch</code> forwards to.</p>
</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.clone_span"class="method"><aclass="src rightside"href="../src/tracing_core/dispatcher.rs.html#656">source</a><h4class="code-header">pub fn <ahref="#method.clone_span"class="fn">clone_span</a>(&self, id: &<aclass="struct"href="span/struct.Id.html"title="struct tracing::span::Id">Id</a>) -><aclass="struct"href="span/struct.Id.html"title="struct tracing::span::Id">Id</a></h4></section></summary><divclass="docblock"><p>Notifies the subscriber that a <ahref="span/struct.Id.html"title="struct tracing::span::Id">span ID</a> has been cloned.</p>
<p>This function must only be called with span IDs that were returned by
this <code>Dispatch</code>’s <ahref="trait.Subscriber.html#tymethod.new_span"title="method tracing::Subscriber::new_span"><code>new_span</code></a> function. The <code>tracing</code> crate upholds
this guarantee and any other libraries implementing instrumentation APIs
must as well.</p>
<p>This calls the <ahref="trait.Subscriber.html#method.clone_span"title="method tracing::Subscriber::clone_span"><code>clone_span</code></a> function on the <code>Subscriber</code> that this
<code>Dispatch</code> forwards to.</p>
</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.drop_span"class="method"><aclass="src rightside"href="../src/tracing_core/dispatcher.rs.html#684">source</a><h4class="code-header">pub fn <ahref="#method.drop_span"class="fn">drop_span</a>(&self, id: <aclass="struct"href="span/struct.Id.html"title="struct tracing::span::Id">Id</a>)</h4></section><spanclass="item-info"><divclass="stab deprecated"><spanclass="emoji">👎</span><span>Deprecated since 0.1.2: use <code>Dispatch::try_close</code> instead</span></div></span></summary><divclass="docblock"><p>Notifies the subscriber that a <ahref="span/struct.Id.html"title="struct tracing::span::Id">span ID</a> has been dropped.</p>
<p>This function must only be called with span IDs that were returned by
this <code>Dispatch</code>’s <ahref="trait.Subscriber.html#tymethod.new_span"title="method tracing::Subscriber::new_span"><code>new_span</code></a> function. The <code>tracing</code> crate upholds
this guarantee and any other libraries implementing instrumentation APIs
must as well.</p>
<p>This calls the <ahref="trait.Subscriber.html#method.drop_span"title="method tracing::Subscriber::drop_span"><code>drop_span</code></a> function on the <ahref="trait.Subscriber.html"title="trait tracing::Subscriber"><code>Subscriber</code></a> that this
</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.try_close"class="method"><aclass="src rightside"href="../src/tracing_core/dispatcher.rs.html#704">source</a><h4class="code-header">pub fn <ahref="#method.try_close"class="fn">try_close</a>(&self, id: <aclass="struct"href="span/struct.Id.html"title="struct tracing::span::Id">Id</a>) -><aclass="primitive"href="https://doc.rust-lang.org/1.80.0/std/primitive.bool.html">bool</a></h4></section></summary><divclass="docblock"><p>Notifies the subscriber that a <ahref="span/struct.Id.html"title="struct tracing::span::Id">span ID</a> has been dropped, and returns
<code>true</code> if there are now 0 IDs referring to that span.</p>
<p>This function must only be called with span IDs that were returned by
this <code>Dispatch</code>’s <ahref="trait.Subscriber.html#tymethod.new_span"title="method tracing::Subscriber::new_span"><code>new_span</code></a> function. The <code>tracing</code> crate upholds
this guarantee and any other libraries implementing instrumentation APIs
must as well.</p>
<p>This calls the <ahref="trait.Subscriber.html#method.try_close"title="method tracing::Subscriber::try_close"><code>try_close</code></a> function on the <ahref="trait.Subscriber.html"title="trait tracing::Subscriber"><code>Subscriber</code></a> that this
<code>Dispatch</code> forwards to.</p>
</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.current_span"class="method"><aclass="src rightside"href="../src/tracing_core/dispatcher.rs.html#715">source</a><h4class="code-header">pub fn <ahref="#method.current_span"class="fn">current_span</a>(&self) -><aclass="struct"href="../tracing_core/span/struct.Current.html"title="struct tracing_core::span::Current">Current</a></h4></section></summary><divclass="docblock"><p>Returns a type representing this subscriber’s view of the current span.</p>
<p>This calls the <ahref="trait.Subscriber.html#method.current_span"title="method tracing::Subscriber::current_span"><code>current</code></a> function on the <code>Subscriber</code> that this
T: <aclass="trait"href="https://doc.rust-lang.org/1.80.0/core/any/trait.Any.html"title="trait core::any::Any">Any</a>,</div></h4></section></summary><divclass="docblock"><p>Returns <code>true</code> if this <code>Dispatch</code> forwards to a <code>Subscriber</code> of type
T: <aclass="trait"href="https://doc.rust-lang.org/1.80.0/core/any/trait.Any.html"title="trait core::any::Any">Any</a>,</div></h4></section></summary><divclass="docblock"><p>Returns some reference to the <code>Subscriber</code> this <code>Dispatch</code> forwards to
</div></details></div></details><detailsclass="toggle implementors-toggle"><summary><sectionid="impl-Instrument-for-T"class="impl"><aclass="src rightside"href="../src/tracing/instrument.rs.html#325">source</a><ahref="#impl-Instrument-for-T"class="anchor">§</a><h3class="code-header">impl<T><aclass="trait"href="trait.Instrument.html"title="trait tracing::Instrument">Instrument</a> for T</h3></section></summary><divclass="impl-items"><detailsclass="toggle method-toggle"open><summary><sectionid="method.instrument"class="method trait-impl"><aclass="src rightside"href="../src/tracing/instrument.rs.html#86-91">source</a><ahref="#method.instrument"class="anchor">§</a><h4class="code-header">fn <ahref="trait.Instrument.html#method.instrument"class="fn">instrument</a>(self, span: <aclass="struct"href="struct.Span.html"title="struct tracing::Span">Span</a>) -><aclass="struct"href="instrument/struct.Instrumented.html"title="struct tracing::instrument::Instrumented">Instrumented</a><Self><ahref="#"class="tooltip"data-notable-ty="Instrumented<Self>">ⓘ</a></h4></section></summary><divclass='docblock'>Instruments this type with the provided <ahref="struct.Span.html"title="struct tracing::Span"><code>Span</code></a>, returning an
<code>Instrumented</code> wrapper. <ahref="trait.Instrument.html#method.instrument">Read more</a></div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.in_current_span"class="method trait-impl"><aclass="src rightside"href="../src/tracing/instrument.rs.html#128-130">source</a><ahref="#method.in_current_span"class="anchor">§</a><h4class="code-header">fn <ahref="trait.Instrument.html#method.in_current_span"class="fn">in_current_span</a>(self) -><aclass="struct"href="instrument/struct.Instrumented.html"title="struct tracing::instrument::Instrumented">Instrumented</a><Self><ahref="#"class="tooltip"data-notable-ty="Instrumented<Self>">ⓘ</a></h4></section></summary><divclass='docblock'>Instruments this type with the <ahref="struct.Span.html#method.current"title="associated function tracing::Span::current">current</a><ahref="struct.Span.html"title="struct tracing::Span"><code>Span</code></a>, returning an
<code><ahref="https://doc.rust-lang.org/1.80.0/core/convert/trait.From.html"title="trait core::convert::From">From</a><T> for U</code> chooses to do.</p>
</div></details></div></details><detailsclass="toggle implementors-toggle"><summary><sectionid="impl-ToOwned-for-T"class="impl"><aclass="src rightside"href="https://doc.rust-lang.org/1.80.0/src/alloc/borrow.rs.html#83-85">source</a><ahref="#impl-ToOwned-for-T"class="anchor">§</a><h3class="code-header">impl<T><aclass="trait"href="https://doc.rust-lang.org/1.80.0/alloc/borrow/trait.ToOwned.html"title="trait alloc::borrow::ToOwned">ToOwned</a> for T<divclass="where">where
T: <aclass="trait"href="https://doc.rust-lang.org/1.80.0/core/clone/trait.Clone.html"title="trait core::clone::Clone">Clone</a>,</div></h3></section></summary><divclass="impl-items"><detailsclass="toggle"open><summary><sectionid="associatedtype.Owned"class="associatedtype trait-impl"><ahref="#associatedtype.Owned"class="anchor">§</a><h4class="code-header">type <ahref="https://doc.rust-lang.org/1.80.0/alloc/borrow/trait.ToOwned.html#associatedtype.Owned"class="associatedtype">Owned</a> = T</h4></section></summary><divclass='docblock'>The resulting type after obtaining ownership.</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.to_owned"class="method trait-impl"><aclass="src rightside"href="https://doc.rust-lang.org/1.80.0/src/alloc/borrow.rs.html#88">source</a><ahref="#method.to_owned"class="anchor">§</a><h4class="code-header">fn <ahref="https://doc.rust-lang.org/1.80.0/alloc/borrow/trait.ToOwned.html#tymethod.to_owned"class="fn">to_owned</a>(&self) -> T</h4></section></summary><divclass='docblock'>Creates owned data from borrowed data, usually by cloning. <ahref="https://doc.rust-lang.org/1.80.0/alloc/borrow/trait.ToOwned.html#tymethod.to_owned">Read more</a></div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.clone_into"class="method trait-impl"><aclass="src rightside"href="https://doc.rust-lang.org/1.80.0/src/alloc/borrow.rs.html#92">source</a><ahref="#method.clone_into"class="anchor">§</a><h4class="code-header">fn <ahref="https://doc.rust-lang.org/1.80.0/alloc/borrow/trait.ToOwned.html#method.clone_into"class="fn">clone_into</a>(&self, target: <aclass="primitive"href="https://doc.rust-lang.org/1.80.0/std/primitive.reference.html">&mut T</a>)</h4></section></summary><divclass='docblock'>Uses borrowed data to replace owned data, usually by cloning. <ahref="https://doc.rust-lang.org/1.80.0/alloc/borrow/trait.ToOwned.html#method.clone_into">Read more</a></div></details></div></details><detailsclass="toggle implementors-toggle"><summary><sectionid="impl-TryFrom%3CU%3E-for-T"class="impl"><aclass="src rightside"href="https://doc.rust-lang.org/1.80.0/src/core/convert/mod.rs.html#805-807">source</a><ahref="#impl-TryFrom%3CU%3E-for-T"class="anchor">§</a><h3class="code-header">impl<T, U><aclass="trait"href="https://doc.rust-lang.org/1.80.0/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><U> for T<divclass="where">where
U: <aclass="trait"href="https://doc.rust-lang.org/1.80.0/core/convert/trait.Into.html"title="trait core::convert::Into">Into</a><T>,</div></h3></section></summary><divclass="impl-items"><detailsclass="toggle"open><summary><sectionid="associatedtype.Error"class="associatedtype trait-impl"><ahref="#associatedtype.Error"class="anchor">§</a><h4class="code-header">type <ahref="https://doc.rust-lang.org/1.80.0/core/convert/trait.TryFrom.html#associatedtype.Error"class="associatedtype">Error</a> = <aclass="enum"href="https://doc.rust-lang.org/1.80.0/core/convert/enum.Infallible.html"title="enum core::convert::Infallible">Infallible</a></h4></section></summary><divclass='docblock'>The type returned in the event of a conversion error.</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.try_from"class="method trait-impl"><aclass="src rightside"href="https://doc.rust-lang.org/1.80.0/src/core/convert/mod.rs.html#812">source</a><ahref="#method.try_from"class="anchor">§</a><h4class="code-header">fn <ahref="https://doc.rust-lang.org/1.80.0/core/convert/trait.TryFrom.html#tymethod.try_from"class="fn">try_from</a>(value: U) -><aclass="enum"href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html"title="enum core::result::Result">Result</a><T, <T as <aclass="trait"href="https://doc.rust-lang.org/1.80.0/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><U>>::<aclass="associatedtype"href="https://doc.rust-lang.org/1.80.0/core/convert/trait.TryFrom.html#associatedtype.Error"title="type core::convert::TryFrom::Error">Error</a>></h4></section></summary><divclass='docblock'>Performs the conversion.</div></details></div></details><detailsclass="toggle implementors-toggle"><summary><sectionid="impl-TryInto%3CU%3E-for-T"class="impl"><aclass="src rightside"href="https://doc.rust-lang.org/1.80.0/src/core/convert/mod.rs.html#790-792">source</a><ahref="#impl-TryInto%3CU%3E-for-T"class="anchor">§</a><h3class="code-header">impl<T, U><aclass="trait"href="https://doc.rust-lang.org/1.80.0/core/convert/trait.TryInto.html"title="trait core::convert::TryInto">TryInto</a><U> for T<divclass="where">where
U: <aclass="trait"href="https://doc.rust-lang.org/1.80.0/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><T>,</div></h3></section></summary><divclass="impl-items"><detailsclass="toggle"open><summary><sectionid="associatedtype.Error-1"class="associatedtype trait-impl"><ahref="#associatedtype.Error-1"class="anchor">§</a><h4class="code-header">type <ahref="https://doc.rust-lang.org/1.80.0/core/convert/trait.TryInto.html#associatedtype.Error"class="associatedtype">Error</a> = <U as <aclass="trait"href="https://doc.rust-lang.org/1.80.0/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><T>>::<aclass="associatedtype"href="https://doc.rust-lang.org/1.80.0/core/convert/trait.TryFrom.html#associatedtype.Error"title="type core::convert::TryFrom::Error">Error</a></h4></section></summary><divclass='docblock'>The type returned in the event of a conversion error.</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.try_into"class="method trait-impl"><aclass="src rightside"href="https://doc.rust-lang.org/1.80.0/src/core/convert/mod.rs.html#797">source</a><ahref="#method.try_into"class="anchor">§</a><h4class="code-header">fn <ahref="https://doc.rust-lang.org/1.80.0/core/convert/trait.TryInto.html#tymethod.try_into"class="fn">try_into</a>(self) -><aclass="enum"href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html"title="enum core::result::Result">Result</a><U, <U as <aclass="trait"href="https://doc.rust-lang.org/1.80.0/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><T>>::<aclass="associatedtype"href="https://doc.rust-lang.org/1.80.0/core/convert/trait.TryFrom.html#associatedtype.Error"title="type core::convert::TryFrom::Error">Error</a>></h4></section></summary><divclass='docblock'>Performs the conversion.</div></details></div></details><detailsclass="toggle implementors-toggle"><summary><sectionid="impl-WithSubscriber-for-T"class="impl"><aclass="src rightside"href="../src/tracing/instrument.rs.html#393">source</a><ahref="#impl-WithSubscriber-for-T"class="anchor">§</a><h3class="code-header">impl<T><aclass="trait"href="instrument/trait.WithSubscriber.html"title="trait tracing::instrument::WithSubscriber">WithSubscriber</a> for T</h3></section></summary><divclass="impl-items"><detailsclass="toggle method-toggle"open><summary><sectionid="method.with_subscriber"class="method trait-impl"><aclass="src rightside"href="../src/tracing/instrument.rs.html#176-184">source</a><ahref="#method.with_subscriber"class="anchor">§</a><h4class="code-header">fn <ahref="instrument/trait.WithSubscriber.html#method.with_subscriber"class="fn">with_subscriber</a><S>(self, subscriber: S) -><aclass="struct"href="instrument/struct.WithDispatch.html"title="struct tracing::instrument::WithDispatch">WithDispatch</a><Self><ahref="#"class="tooltip"data-notable-ty="WithDispatch<Self>">ⓘ</a><divclass="where">where
S: <aclass="trait"href="https://doc.rust-lang.org/1.80.0/core/convert/trait.Into.html"title="trait core::convert::Into">Into</a><<aclass="struct"href="struct.Dispatch.html"title="struct tracing::Dispatch">Dispatch</a>>,</div></h4></section></summary><divclass='docblock'>Attaches the provided <ahref="trait.Subscriber.html"title="trait tracing::Subscriber"><code>Subscriber</code></a> to this type, returning a
<ahref="instrument/struct.WithDispatch.html"title="struct tracing::instrument::WithDispatch"><code>WithDispatch</code></a> wrapper. <ahref="instrument/trait.WithSubscriber.html#method.with_subscriber">Read more</a></div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.with_current_subscriber"class="method trait-impl"><aclass="src rightside"href="../src/tracing/instrument.rs.html#228-233">source</a><ahref="#method.with_current_subscriber"class="anchor">§</a><h4class="code-header">fn <ahref="instrument/trait.WithSubscriber.html#method.with_current_subscriber"class="fn">with_current_subscriber</a>(self) -><aclass="struct"href="instrument/struct.WithDispatch.html"title="struct tracing::instrument::WithDispatch">WithDispatch</a><Self><ahref="#"class="tooltip"data-notable-ty="WithDispatch<Self>">ⓘ</a></h4></section></summary><divclass='docblock'>Attaches the current <ahref="dispatcher/index.html#setting-the-default-subscriber"title="mod tracing::dispatcher">default</a><ahref="trait.Subscriber.html"title="trait tracing::Subscriber"><code>Subscriber</code></a> to this type, returning a
