Merge branch 'master' into patch-2

Author: mariannegoldin

draft/2025-04-02-this-week-in-rust.md

@@ -34,13 +34,17 @@ and just ask the editors to select the category.
 ### Foundation
 
 ### Newsletters
+* [The Embedded Rustacean Issue #42](https://www.theembeddedrustacean.com/p/the-embedded-rustacean-issue-42)
 
 ### Project/Tooling Updates
 * [EtherCrab, the pure Rust EtherCAT MainDevice, version 0.6 released](https://wapl.es/ethercrab-0-6/)
+* [A process for handling Rust code in the core kernel](https://lwn.net/SubscriberLink/1015409/be9d004a43a7102d/)
+* [api-version: axum middleware for header based version selection](https://heikoseeberger.de/2025-03-20-api-version/)
 
 ### Observations/Thoughts
 
 ### Rust Walkthroughs
+* [Building a CoAP application on Ariel OS](https://christian.amsuess.com/blog/website/2025-03-27_ariel_coap/)
 
 ### Research
 
@@ -111,7 +115,22 @@ If you are an event organizer hoping to expand the reach of your event, please s
 
 ### Rust Compiler Performance Triage
 
-<!-- Perf results go here -->
+Positive week, with a lot of primary improvements and just a few secondary regressions. Single big regression got reverted.
+
+Triage done by **@panstromek**.
+Revision range: [4510e86a..2ea33b59](https://perf.rust-lang.org/?start=4510e86a41388733675465a8647d4235f3bf2023&end=2ea33b591050c4ca1a3752830b29112638faecf6&absolute=false&stat=instructions%3Au)
+
+**Summary**:
+
+| (instructions:u)                   | mean  | range          | count |
+|:----------------------------------:|:-----:|:--------------:|:-----:|
+| Regressions ❌ <br /> (primary)    | -     | -              | 0     |
+| Regressions ❌ <br /> (secondary)  | 0.9%  | [0.2%, 1.5%]   | 17    |
+| Improvements ✅ <br /> (primary)   | -0.4% | [-4.5%, -0.1%] | 136   |
+| Improvements ✅ <br /> (secondary) | -0.6% | [-3.2%, -0.1%] | 59    |
+| All ❌✅ (primary)                 | -0.4% | [-4.5%, -0.1%] | 136   |
+
+[Full report here](https://github.com/rust-lang/rustc-perf/blob/9bd6fc2f4594023b82acd8d876dcf659aee9a931/triage/2025-03-31.md).
 
 ### [Approved RFCs](https://github.com/rust-lang/rfcs/commits/master)