fix(docs): Replace doc_auto_cfg with doc_cfg feature

The former has been merge in the latter, and it errors when generating
the docs in a recent version of nightly, like the one used on docs.rs.

This also requires to bump the version of nightly used in CI, otherwise
it would break the docs generation.

Signed-off-by: Kévin Commaille <zecakeh@tedomum.fr>

Author: zecakeh

.github/workflows/ci.yml

@@ -313,7 +313,7 @@ jobs:
       - name: Install Rust
         uses: dtolnay/rust-toolchain@master
         with:
-          toolchain: nightly-2025-08-08
+          toolchain: nightly-2025-10-01
           components: clippy, rustfmt
 
       - name: Load cache

.github/workflows/documentation.yml

@@ -31,7 +31,7 @@ jobs:
       - name: Install Rust
         uses: dtolnay/rust-toolchain@master
         with:
-          toolchain: nightly-2025-08-08
+          toolchain: nightly-2025-10-01
 
       - name: Install Node.js
         uses: actions/setup-node@v5

crates/matrix-sdk-base/src/lib.rs

@@ -14,7 +14,7 @@
 // limitations under the License.
 
 #![doc = include_str!("../README.md")]
-#![cfg_attr(docsrs, feature(doc_auto_cfg))]
+#![cfg_attr(docsrs, feature(doc_cfg))]
 #![cfg_attr(target_family = "wasm", allow(clippy::arc_with_non_send_sync))]
 #![warn(missing_docs, missing_debug_implementations)]
 

crates/matrix-sdk-crypto/src/lib.rs

@@ -14,7 +14,7 @@
 // limitations under the License.
 
 #![doc = include_str!("../README.md")]
-#![cfg_attr(docsrs, feature(doc_auto_cfg))]
+#![cfg_attr(docsrs, feature(doc_cfg))]
 #![warn(missing_docs, missing_debug_implementations)]
 #![cfg_attr(target_family = "wasm", allow(clippy::arc_with_non_send_sync))]
 

crates/matrix-sdk-qrcode/src/lib.rs

@@ -13,7 +13,7 @@
 // limitations under the License.
 
 #![doc = include_str!("../README.md")]
-#![cfg_attr(docsrs, feature(doc_auto_cfg))]
+#![cfg_attr(docsrs, feature(doc_cfg))]
 #![warn(missing_debug_implementations, missing_docs)]
 
 mod error;

crates/matrix-sdk-ui/src/lib.rs

@@ -13,7 +13,7 @@
 // limitations under the License.
 
 #![cfg_attr(target_family = "wasm", allow(clippy::arc_with_non_send_sync))]
-#![cfg_attr(docsrs, feature(doc_auto_cfg))]
+#![cfg_attr(docsrs, feature(doc_cfg))]
 
 pub use eyeball_im;
 use ruma::html::HtmlSanitizerMode;

crates/matrix-sdk/src/lib.rs

@@ -16,7 +16,7 @@
 #![doc = include_str!("../README.md")]
 #![warn(missing_debug_implementations, missing_docs)]
 #![cfg_attr(target_family = "wasm", allow(clippy::arc_with_non_send_sync))]
-#![cfg_attr(docsrs, feature(doc_auto_cfg))]
+#![cfg_attr(docsrs, feature(doc_cfg))]
 
 pub use async_trait::async_trait;
 pub use bytes;

xtask/src/main.rs

@@ -17,7 +17,7 @@ use release::ReleaseArgs;
 use swift::SwiftArgs;
 use xshell::{Shell, cmd};
 
-const NIGHTLY: &str = "nightly-2025-08-08";
+const NIGHTLY: &str = "nightly-2025-10-01";
 
 type Result<T, E = Box<dyn std::error::Error>> = std::result::Result<T, E>;