Update to new rustdoc-json output and update crate version to 0.58.0

CHANGELOG.md

@@ -1,3 +1,13 @@
+<a name="v0.58.0"></a>
+# [v0.58.0](https://github.com/rust-lang/rustdoc-types/releases/tag/v0.58.0) - 2026-06-24
+
+**Breaking change**: Add `Item::stability` field
+([rust#158230](https://github.com/rust-lang/rust/pull/158230))
+
+- Format Version: 57
+- Upstream Commit: [`fee82a37e9eabf8afe6db62c0177baaf63356a98`](https://github.com/rust-lang/rust/commit/fee82a37e9eabf8afe6db62c0177baaf63356a98)
+- Diff: [v0.57.3...v0.57.4](https://github.com/rust-lang/rustdoc-types/compare/v0.57.3...v0.57.4)
+
 <a name="v0.57.4"></a>
 # [v0.57.4](https://github.com/rust-lang/rustdoc-types/releases/tag/v0.57.4) - 2026-06-19
 

COMMIT.txt

@@ -1 +1 @@
-fee82a37e9eabf8afe6db62c0177baaf63356a98
+818d29d02798f5e48d28c868e4034294a7a38597

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "rustdoc-types"
-version = "0.57.4"
+version = "0.58.0"
 edition = "2018"
 license = "MIT OR Apache-2.0"
 description = "Types for rustdoc's json output"

src/lib.rs

@@ -113,8 +113,8 @@ use serde_derive::{Deserialize, Serialize};
 // will instead cause conflicts. See #94591 for more. (This paragraph and the "Latest feature" line
 // are deliberately not in a doc comment, because they need not be in public docs.)
 //
-// Latest feature: Add `ExternCrate::path`.
-pub const FORMAT_VERSION: u32 = 57;
+// Latest feature: Add `Item::stability`.
+pub const FORMAT_VERSION: u32 = 58;
 
 /// The root of the emitted JSON blob.
 ///
@@ -281,7 +281,10 @@ pub struct Item {
     pub links: HashMap<String, Id>,
     /// Attributes on this item.
     ///
-    /// Does not include `#[deprecated]` attributes: see the [`Self::deprecation`] field instead.
+    /// Does not include:
+    /// - `#[doc = "Doc Comment"]` or `/// Doc comment`: see [`Self::docs`] instead.
+    /// - `#[deprecated]` attributes: see the [`Self::deprecation`] field instead.
+    /// - `#[stable]` and `#[unstable]` attributes: see the [`Self::stability`] field instead.
     ///
     /// Attributes appear in pretty-printed Rust form, regardless of their formatting
     /// in the original source code. For example:
@@ -293,10 +296,64 @@ pub struct Item {
     pub attrs: Vec<Attribute>,
     /// Information about the item’s deprecation, if present.
     pub deprecation: Option<Deprecation>,
+
+    /// Stability information for this item, if any.
+    ///
+    /// This describes whether the item itself is stable or unstable, as noted by a `#[stable]` or
+    /// `#[unstable]` attribute. It does not capture const stability, default-body stability, etc.
+    ///
+    /// Whether a path to an item is stable depends on the stability of containing modules
+    /// or re-exports along that path. For example, a stable item can be reachable through both an
+    /// unstable module and a stable re-export.
+    ///
+    /// For items whose inner kind is [`ItemEnum::Use`], this is the stability of the import itself,
+    /// not the item being imported. This allows users to determine the stability of paths
+    /// that involve re-exports.
+    ///
+    /// Associated items can inherit instability from their enclosing unstable trait or impl.
+    /// Unannotated associated items in stable traits or impls may have no separate stability value.
+    ///
+    /// Currently, Rust's `#[stable]` and `#[unstable]` attributes are themselves not stable.
+    /// As a result, this field is primarily populated for standard-library items;
+    /// most ordinary third-party crates usually have no data here.
+    pub stability: Option<Box<Stability>>,
+
     /// The type-specific fields describing this item.
     pub inner: ItemEnum,
 }
 
+/// Stability information for an item.
+///
+/// This only refers to regular item stability: whether the item is stable or unstable
+/// as represented by the `#[stable]` or `#[unstable]` attributes.
+/// Const stability and default-body stability are different things and not captured here.
+#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
+#[cfg_attr(feature = "rkyv_0_8", derive(rkyv::Archive, rkyv::Serialize, rkyv::Deserialize))]
+#[cfg_attr(feature = "rkyv_0_8", rkyv(derive(Debug)))]
+pub struct Stability {
+    /// The stability feature associated with this item.
+    ///
+    /// For unstable items, this is the feature gate associated with the item.
+    /// For stable items, this is the historical label recorded when the item was stabilized.
+    pub feature: String,
+
+    #[serde(flatten)]
+    pub level: StabilityLevel,
+}
+
+/// Whether an item is stable or unstable as regular public API.
+#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
+#[cfg_attr(feature = "rkyv_0_8", derive(rkyv::Archive, rkyv::Serialize, rkyv::Deserialize))]
+#[cfg_attr(feature = "rkyv_0_8", rkyv(derive(Debug)))]
+#[serde(tag = "level", rename_all = "snake_case")]
+pub enum StabilityLevel {
+    Stable {
+        /// The Rust version in which this item became stable, if available.
+        since: Option<String>,
+    },
+    Unstable,
+}
+
 #[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
 #[cfg_attr(feature = "rkyv_0_8", derive(rkyv::Archive, rkyv::Serialize, rkyv::Deserialize))]
 #[cfg_attr(feature = "rkyv_0_8", rkyv(derive(Debug)))]
@@ -306,6 +363,7 @@ pub struct Item {
 /// This doesn't include:
 /// - `#[doc = "Doc Comment"]` or `/// Doc comment`. These are in [`Item::docs`] instead.
 /// - `#[deprecated]`. These are in [`Item::deprecation`] instead.
+/// - `#[stable]` and `#[unstable]`. These are in [`Item::stability`] instead.
 pub enum Attribute {
     /// `#[non_exhaustive]`
     NonExhaustive,