<main><divclass="width-limiter"><navclass="sub"><formclass="search-form"><span></span><divid="sidebar-button"tabindex="-1"><ahref="../tracing/all.html"title="show sidebar"></a></div><inputclass="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"><divid="help-button"tabindex="-1"><ahref="../help.html"title="help">?</a></div><divid="settings-menu"tabindex="-1"><ahref="../settings.html"title="settings"><imgwidth="22"height="22"alt="Change settings"src="../static.files/wheel-7b819b6101059cd0.svg"></a></div></form></nav><sectionid="main-content"class="content"><divclass="main-heading"><h1>Struct <ahref="index.html">tracing</a>::<wbr><aclass="struct"href="#">Dispatch</a><buttonid="copy-path"title="Copy item path to clipboard"><imgsrc="../static.files/clipboard-7571035ce49a181d.svg"width="19"height="18"alt="Copy item path"></button></h1><spanclass="out-of-band"><aclass="src"href="../src/tracing_core/dispatcher.rs.html#155">source</a> · <buttonid="toggle-all-docs"title="collapse all docs">[<span>−</span>]</button></span></div><preclass="rust item-decl"><code>pub struct Dispatch { <spanclass="comment">/* private fields */</span> }</code></pre><detailsclass="toggle top-doc"open><summaryclass="hideme"><span>Expand description</span></summary><divclass="docblock"><p><code>Dispatch</code> trace data to a <ahref="trait.Subscriber.html"title="trait tracing::Subscriber"><code>Subscriber</code></a>.</p>
</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/1.78.0/core/marker/trait.Send.html"title="trait core::marker::Send">Send</a> + <aclass="trait"href="https://doc.rust-lang.org/1.78.0/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/1.78.0/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/1.78.0/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/1.78.0/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/1.78.0/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/1.78.0/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/1.78.0/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/1.78.0/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/1.78.0/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/1.78.0/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/1.78.0/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/1.78.0/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/1.78.0/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/1.78.0/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/1.78.0/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/1.78.0/alloc/borrow/trait.ToOwned.html#method.clone_into"class="fn">clone_into</a>(&self, target: <aclass="primitive"href="https://doc.rust-lang.org/1.78.0/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/1.78.0/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/1.78.0/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/1.78.0/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/1.78.0/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-1"class="associatedtype trait-impl"><ahref="#associatedtype.Error-1"class="anchor">§</a><h4class="code-header">type <ahref="https://doc.rust-lang.org/1.78.0/core/convert/trait.TryFrom.html#associatedtype.Error"class="associatedtype">Error</a> = <aclass="enum"href="https://doc.rust-lang.org/1.78.0/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/1.78.0/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/1.78.0/core/convert/trait.TryFrom.html#tymethod.try_from"class="fn">try_from</a>(value: U) -><aclass="enum"href="https://doc.rust-lang.org/1.78.0/core/result/enum.Result.html"title="enum core::result::Result">Result</a><T, <T as <aclass="trait"href="https://doc.rust-lang.org/1.78.0/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><U>>::<aclass="associatedtype"href="https://doc.rust-lang.org/1.78.0/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/1.78.0/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/1.78.0/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/1.78.0/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"class="associatedtype trait-impl"><ahref="#associatedtype.Error"class="anchor">§</a><h4class="code-header">type <ahref="https://doc.rust-lang.org/1.78.0/core/convert/trait.TryInto.html#associatedtype.Error"class="associatedtype">Error</a> = <U as <aclass="trait"href="https://doc.rust-lang.org/1.78.0/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><T>>::<aclass="associatedtype"href="https://doc.rust-lang.org/1.78.0/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/1.78.0/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/1.78.0/core/convert/trait.TryInto.html#tymethod.try_into"class="fn">try_into</a>(self) -><aclass="enum"href="https://doc.rust-lang.org/1.78.0/core/result/enum.Result.html"title="enum core::result::Result">Result</a><U, <U as <aclass="trait"href="https://doc.rust-lang.org/1.78.0/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><T>>::<aclass="associatedtype"href="https://doc.rust-lang.org/1.78.0/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/1.78.0/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
