<!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="Possible failures modes for [`SessionStore::save`]."><metaname="keywords"content="rust, rustlang, rust-lang, SaveError"><title>SaveError in actix_session::storage - Rust</title><linkrel="preload"as="font"type="font/woff2"crossoriginhref="../../static.files/SourceSerif4-Regular-1f7d512b176f0f72.ttf.woff2"><linkrel="preload"as="font"type="font/woff2"crossoriginhref="../../static.files/FiraSans-Regular-018c141bf0843ffd.woff2"><linkrel="preload"as="font"type="font/woff2"crossoriginhref="../../static.files/FiraSans-Medium-8f9a781e4970d388.woff2"><linkrel="preload"as="font"type="font/woff2"crossoriginhref="../../static.files/SourceCodePro-Regular-562dcc5011b6de7d.ttf.woff2"><linkrel="preload"as="font"type="font/woff2"crossoriginhref="../../static.files/SourceSerif4-Bold-124a1ca42af929b6.ttf.woff2"><linkrel="preload"as="font"type="font/woff2"crossoriginhref="../../static.files/SourceCodePro-Semibold-d899c5a5c4aeb14a.ttf.woff2"><linkrel="stylesheet"href="../../static.files/normalize-76eba96aa4d2e634.css"><linkrel="stylesheet"href="../../static.files/rustdoc-eabf764633b9d7be.css"id="mainThemeStyle"><linkrel="stylesheet"id="themeStyle"href="../../static.files/light-777f3e9583f8c92d.css"><linkrel="stylesheet"disabledhref="../../static.files/dark-e2f4109f2e82e3af.css"><linkrel="stylesheet"disabledhref="../../static.files/ayu-c360e709a65bed99.css"><scriptid="default-settings"></script><scriptsrc="../../static.files/storage-d43fa987303ecbbb.js"></script><scriptdefersrc="sidebar-items.js"></script><scriptdefersrc="../../static.files/main-c2d2a5dbaed13e6b.js"></script><noscript><linkrel="stylesheet"href="../../static.files/noscript-13285aec31fa243e.css"></noscript><linkrel="icon"href="https://actix.rs/favicon.ico"></head><bodyclass="rustdoc enum"><!--[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">☰</button><aclass="sidebar-logo"href="../../actix_session/index.html"><divclass="logo-container"><imgsrc="https://actix.rs/img/logo.png"alt="logo"></div></a><h2></h2></nav><navclass="sidebar"><aclass="sidebar-logo"href="../../actix_session/index.html"><divclass="logo-container">
</div></details><h2id="variants"class="variants small-section-header">Variants<ahref="#variants"class="anchor"></a></h2><h3id="variant.Serialization"class="variant small-section-header"><ahref="#variant.Serialization"class="anchor field"></a><code>Serialization(<aclass="struct"href="https://docs.rs/anyhow/1.0.66/anyhow/struct.Error.html"title="struct anyhow::Error">Error</a>)</code></h3><divclass="docblock"><p>Failed to serialize session state.</p>
</div><h3id="variant.Other"class="variant small-section-header"><ahref="#variant.Other"class="anchor field"></a><code>Other(<aclass="struct"href="https://docs.rs/anyhow/1.0.66/anyhow/struct.Error.html"title="struct anyhow::Error">Error</a>)</code></h3><divclass="docblock"><p>Something went wrong when persisting the session state.</p>
</div></details></div></details><detailsclass="rustdoc-toggle implementors-toggle"><summary><sectionid="impl-Instrument-for-SaveError"class="impl has-srclink"><aclass="srclink rightside"href="https://docs.rs/tracing/0.1.37/src/tracing/instrument.rs.html#276">source</a><ahref="#impl-Instrument-for-SaveError"class="anchor"></a><h3class="code-header">impl<T><aclass="trait"href="https://docs.rs/tracing/0.1.37/tracing/instrument/trait.Instrument.html"title="trait tracing::instrument::Instrument">Instrument</a> for T</h3></section></summary><divclass="impl-items"><detailsclass="rustdoc-toggle method-toggle"open><summary><sectionid="method.instrument"class="method trait-impl has-srclink"><aclass="srclink rightside"href="https://docs.rs/tracing/0.1.37/src/tracing/instrument.rs.html#82">source</a><ahref="#method.instrument"class="anchor"></a><h4class="code-header">fn <ahref="https://docs.rs/tracing/0.1.37/tracing/instrument/trait.Instrument.html#method.instrument"class="fnname">instrument</a>(self, span: <aclass="struct"href="https://docs.rs/tracing/0.1.37/tracing/span/struct.Span.html"title="struct tracing::span::Span">Span</a>) -><aclass="struct"href="https://docs.rs/tracing/0.1.37/tracing/instrument/struct.Instrumented.html"title="struct tracing::instrument::Instrumented">Instrumented</a><Self></h4></section></summary><divclass='docblock'>Instruments this type with the provided <ahref="https://docs.rs/tracing/0.1.37/tracing/span/struct.Span.html"title="Span"><code>Span</code></a>, returning an
<code>Instrumented</code> wrapper. <ahref="https://docs.rs/tracing/0.1.37/tracing/instrument/trait.Instrument.html#method.instrument">Read more</a></div></details><detailsclass="rustdoc-toggle method-toggle"open><summary><sectionid="method.in_current_span"class="method trait-impl has-srclink"><aclass="srclink rightside"href="https://docs.rs/tracing/0.1.37/src/tracing/instrument.rs.html#121">source</a><ahref="#method.in_current_span"class="anchor"></a><h4class="code-header">fn <ahref="https://docs.rs/tracing/0.1.37/tracing/instrument/trait.Instrument.html#method.in_current_span"class="fnname">in_current_span</a>(self) -><aclass="struct"href="https://docs.rs/tracing/0.1.37/tracing/instrument/struct.Instrumented.html"title="struct tracing::instrument::Instrumented">Instrumented</a><Self></h4></section></summary><divclass='docblock'>Instruments this type with the <ahref="https://docs.rs/tracing/0.1.37/tracing/span/struct.Span.html#method.current">current</a><ahref="https://docs.rs/tracing/0.1.37/tracing/span/struct.Span.html"><code>Span</code></a>, returning an
</div></details></div></details><detailsclass="rustdoc-toggle implementors-toggle"><summary><sectionid="impl-Provider-for-SaveError"class="impl has-srclink"><aclass="srclink rightside"href="https://doc.rust-lang.org/nightly/src/core/error.rs.html#197">source</a><ahref="#impl-Provider-for-SaveError"class="anchor"></a><h3class="code-header">impl<E><aclass="trait"href="https://doc.rust-lang.org/nightly/core/any/trait.Provider.html"title="trait core::any::Provider">Provider</a> for E<spanclass="where fmt-newline">where<br> E: <aclass="trait"href="https://doc.rust-lang.org/nightly/core/error/trait.Error.html"title="trait core::error::Error">Error</a> + ?<aclass="trait"href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html"title="trait core::marker::Sized">Sized</a>,</span></h3></section></summary><divclass="impl-items"><detailsclass="rustdoc-toggle method-toggle"open><summary><sectionid="method.provide-1"class="method trait-impl has-srclink"><aclass="srclink rightside"href="https://doc.rust-lang.org/nightly/src/core/error.rs.html#201">source</a><ahref="#method.provide-1"class="anchor"></a><h4class="code-header">fn <ahref="https://doc.rust-lang.org/nightly/core/any/trait.Provider.html#tymethod.provide"class="fnname">provide</a><'a>(&'a self, demand: &mut <aclass="struct"href="https://doc.rust-lang.org/nightly/core/any/struct.Demand.html"title="struct core::any::Demand">Demand</a><'a>)</h4></section></summary><spanclass="item-info"><divclass="stab unstable"><spanclass="emoji">🔬</span><span>This is a nightly-only experimental API. (<code>provide_any</code>)</span></div></span><divclass='docblock'>Data providers should implement this method to provide <em>all</em> values they are able to
<ahref="https://docs.rs/tracing/0.1.37/tracing/instrument/struct.WithDispatch.html"title="WithDispatch"><code>WithDispatch</code></a> wrapper. <ahref="https://docs.rs/tracing/0.1.37/tracing/instrument/trait.WithSubscriber.html#method.with_subscriber">Read more</a></div></details><detailsclass="rustdoc-toggle method-toggle"open><summary><sectionid="method.with_current_subscriber"class="method trait-impl has-srclink"><aclass="srclink rightside"href="https://docs.rs/tracing/0.1.37/src/tracing/instrument.rs.html#221">source</a><ahref="#method.with_current_subscriber"class="anchor"></a><h4class="code-header">fn <ahref="https://docs.rs/tracing/0.1.37/tracing/instrument/trait.WithSubscriber.html#method.with_current_subscriber"class="fnname">with_current_subscriber</a>(self) -><aclass="struct"href="https://docs.rs/tracing/0.1.37/tracing/instrument/struct.WithDispatch.html"title="struct tracing::instrument::WithDispatch">WithDispatch</a><Self></h4></section></summary><divclass='docblock'>Attaches the current <ahref="https://docs.rs/tracing/0.1.37/tracing/dispatcher/index.html#setting-the-default-subscriber">default</a><ahref="https://docs.rs/tracing-core/0.1.22/tracing_core/subscriber/trait.Subscriber.html"><code>Subscriber</code></a> to this type, returning a
