Rustacean Station

Highlights from This Week in Rust - Issue 444. This week features a juicy post-mortem, open source, open hardware, and lots of news from around the Rust ecosystem. Contributing to Rustacean Station Rustacean Station is a community project; get in touch with us if you’d like to suggest an idea for an episode or offer your services as a host or audio editor! Twitter: @rustaceanfm Discord: Rustacean Station Github: @rustacean-station Email: hello@rustacean-station.org Timestamps & referenced resources [@00:00] Welcome [@00:10] - Introduction [@00:50] - Agenda [@01:23] - Quote of the week This is the difference in approaches of the two languages. In C++ if the code is vulnerable, the blame is on the programmer. In Rust if the code is vulnerable, Rust considers it a failure of the language, and takes responsibility to stop even “bad” programmers from writing vulnerable code. I can’t stress enough how awesome it is that I can be a careless fool, and still write perfectly robust highly multi-threaded code that never crashes. [@03:09] Allen: Rust is both good and bad at marketing [@03:30] - Crate of the week [@04:15] - Tim and Sean discuss parsing in episode 2022-05-26 at 47:10 [@05:10] Official Notices [@05:22] - Announcing Rust 1.61.0 Custom exit codes from main [Note from Tim: I say “termination crate”, but should have said “Termination trait”.] More capabilities for const fn “Basic” handling of fn pointers Add trait bounds to a const fn dyn trait and impl Trait support Stdio handles can be locked directly Several stabilized APIs [@08:07] Highlights [@08:27] - Developer survey: JavaScript and Python reign, but Rust is rising [@09:09] - Sean: “Rust adoption has nearly quadrupled in the last two years, going from 600k developers in Q1 2022 to 2.2m in Q1 2022.” [@13:00] - Redust by Will Nelson [@13:50] Allen: I think the comments are actually more interesting. They are starting to point to something really—I don’t know whether it’s good or bad for the community—where, you know, people start rolling their own crates instead of, say, doing stuff upstream. It kind of goes back to what Tim was complaining about before [Easy Mode for Rust, discussed on This Week in Rust - Issue 441]—well, lightly pointing out to people out there—that okay, now which crate should I use? [@16:20] Tim: Open source is really complicated. You need to talk to people. That’s … challenging. [Laughs] [@16:40] Josh Triplett on Building with Rust, discussing the orphan rule [@16:50] Sean: Rust is not very good at sharing between crates. [@19:07] - Rust: A Critical Retrospective by bunnie Links The Hardware Hacker, bunnie’s autobiography [video] “Shenzhen: An Alternative to the American way of Innovation” [@28:56] A Programmer’s Brain, by Felienne Hermans, about working memory in programmers. [@19:58] - Hacking the Xbox book [@20:04] - [video] Linux.conf.au 2013 keynote discussing Chumby and creating a hardware startup [@20:20] - betrusted.io, a secure communications system that runs the Xous microkernel operating system [@21:07] - Tim: Security-critical applications have issues when they … rely on Rust. There’s one quote I want to pull out of the post, which is: “I’m not sure if there is even a good solution to this problem, but, if you are super-paranoid and your goal is to be able to build trustable firmware, be wary of Rust’s expansive software supply chain attack surface!” [@26:09] - Sean: bunnie I think that you are absolutely, totally, qualified. [@30:17] - Allen: I did see a macro that he put in there. … I forget extact. It was very crazy and I was like, “Come on, no one’s every going to write something crazy like this” and then I took a look at the RFC that Sean’s gonna do and in the comments there was a crazy one like that and I was like, “oh wow, this guy’s point’s valid”. [@30:49] - Hyrum’s Law, named after Hyrum Wright. With a sufficient number of users of an API, it does not matter what you promise in the contract: all observable behaviors of your system will be depended on by somebody. [@31:50] Fixing memory leaks by Lily Mara [@34:01] - tracing crate, created as part of the tokio project [@32:33] - “Is it possible to cause a memory leak in Rust?” - Stack Overflow [@33:06] - std::ops::Drop trait documentation std::mem::forget and Box::leak for intentionally leaking memory Out-of memory (OOM) killer internals page from the Linux memory management wiki [@37:54] tracing::instrument::Instrument trait, which fixes this issue [@41:29] Building a Cloud Database from Scratch: Why We Moved from C++ to Rust by Yingjun Wu GAT (generic associated traits) Allen: [C++ vs Rust] is like apples vs apple pie. [@45:50] - [video] Deref and Drop traits by Dan Chiarlone “Smart pointers”, chapter 15 of The Rust Programming Language. std::ops::Deref trait documentation [@46:40] - Optimizing the size of your Rust binaries by Sylvain Kerkour cargo-bloat, for determining the size impact of code and dependencies twiggy, a similar tool for WASM targets [@48:10] - RFC: Add more support for fallible allocations in Vec by Daniel Paoliello and contributors Sean: This RFC is intended as a stop-gap, to unblock on-going work like—I imagine—adding Rust to the Linux kernel while better long-term solutions are explored. “Example: Implementing Vec” chapter of the Rustnomicon, describes how Vec’s memory allocation works in detail Never type reference documentation [@54:40] Tim: I want to bring out a comment that was made to me in private, because I’ve been toying with the idea of becoming a rustc contributor, particularly on the standard library side, and Ashley Mannix sent me a really lovely note, which was: “Rust is also chronically friendly so nobody gets chewed out for making mistakes. They happen. They get caught. They get patched. You learn something new. It’s ok.”. [@55:51] - How we use Rust, SQLx and Rocket for Oso Cloud by Steve Olsen Other items [@57:20] Meetups [@57:31] Major release announcements DataFusion 8.0 IntelliJ Rust plugin 2022.1 [@57:40] Join us in the #this-week-in-rust channel of the Rustacean Station Discord server Credits Intro Theme: Aerocity Audio Editing: Aleksandar Nikolic Hosting Infrastructure: Jon Gjengset Show Notes: Tim McNamara Hosts: Tim McNamara, Sean Chen, and Allen Wyma.

Allen Wyma talks with Emil Ernerfeldt, creator of egui. egui is a simple, fast, and highly portable immediate mode GUI library for Rust. egui runs on the web, natively, and in your favorite game engine (or will soon). Contributing to Rustacean Station Rustacean Station is a community project; get in touch with us if you’d like to suggest an idea for an episode or offer your services as a host or audio editor! Twitter: @rustaceanfm Discord: Rustacean Station Github: @rustacean-station Email: hello@rustacean-station.org Timestamps [@0:41] - History of Emil’s last name “Ernerfeldt” [@1:25] - Getting Emil on this podcast [@4:06] - Emil’s Bio and egui [@11:52] - Building egui [@16:47] - Immediate mode [@26:27] - Knowing when to use egui [@31:35] - Parent-child contraints [@34:21] - Immediate mode is dynamic [@36:22] - Refresh rate and Continuous mode [@39:11] - Themes in egui [@39:59] - egui more for development or client side app? [@45:17] - Opinions on hiring people and Emil’s company [@49:09] - Opinions on products built by you vs built by others [@53:48] - Other GUIs [@56:54] - Future plans on egui [@58:45] - Anything else you want to mention? Other Resources egui’s Github Emil’s Github Credits Intro Theme: Aerocity Audio Editing: Plangora Hosting Infrastructure: Jon Gjengset Show Notes: Plangora Hosts: Allen Wyma

Highlights from This Week in Rust - Issue 443. This week features a new section within the newsletter as well as the hosts Sean, Allen and Tim chatting about compilers, front-end development, extending databases with Rust and more. Contributing to Rustacean Station Rustacean Station is a community project; get in touch with us if you’d like to suggest an idea for an episode or offer your services as a host or audio editor! Twitter: @rustaceanfm Discord: Rustacean Station Github: @rustacean-station Email: hello@rustacean-station.org Timestamps & referenced resources [@00:00] Welcome [@00:10] - Introduction [@00:50] - Agenda [@01:20] - Quote of the week [@02:50] - Crate of the week [@03:30] Highlights [@03:45] - Things are Getting Rusty in Kernel Land Rust for Linux GitHub org Version 6 of the Rust patchset Supporting Linux kernel development in Rust LWN article discussing the Linux Plumbers 2020 session that kicked off the effort Prossimo funding the effort, sponsored by Google [@09:45] - The Rust Borrow Checker - A Deep Dive MIR (Mid-level representation) introduction From MIR to binaries discusses how binaries are generated MIR borrow check section of the rustc dev guide rustc_borrowck crate within the compiler [@14:40] - PixelBox Public Alpha PixelBox source code egui GUI framework for Rust PyTorch, a popular Python wrapper for the Torch machine learning framework ONNX machine learning format [@18:00] - Rust Ergonomics: Default and From std::default::Default trait documentation std::convert::From trait documentation std::convert::Into trait documentation Code Like a Pro in Rust book by Brendan Matthews, published by Manning [@23:30] - Our Experience Porting the YJIT Ruby Compiler to Rust YJIT: Building a New JIT Compiler for CRuby [talk] MoreVMs’21: “YJIT: Building a New JIT Compiler Inside CRuby” – Maxime Chevalier-Boisvert [@30:30] - Asteracea JSX introduction, from the ReactJS project [audio] Carl Lerche on macros (skip to 28:25) How does WebAssembly fit into the web platform?, an article discussing the interacting with the DOM from wasm. [@37:46] - Ferrite: A Judgmental Embedding of Session Types in Rust Haskell Session Types with (Almost) No Class [pdf] Session Types for Rust Session type Affine type, definition from Wikipedia. [Note from Tim: the definition provided by me in the podcast is incorrect. The term “affine type” is derived from affine logic, not affine transformation.] [@40:40] - New newsletter section: Call for testing RFC: Deduplicate cargo workspace information Scoped threads in the standard library crossbeam crate rustc dev guide [@45:45] - [video] Neon - Building a Postgres storage system in Rust pgx crate for extending PostgreSQL in Rust neon database source code [@50:55] - Extending SQLite with Rust Stored procedure English Wikipedia article Other items [@59:30] Final Comment Period for RFCs, PRs [@59:42] What is “yeet”? Credits Intro Theme: Aerocity Audio Editing: Brógan Molloy Hosting Infrastructure: Jon Gjengset Show Notes: Tim McNamara Hosts: Tim McNamara, Sean Chen, and Allen Wyma.

Allen Wyma talks with Kyle Machulis, lead developer on Buttplug. Buttplug is an open-source standards and software project for controlling intimate hardware such as sex toys. Contributing to Rustacean Station Rustacean Station is a community project; get in touch with us if you’d like to suggest an idea for an episode or offer your services as a host or audio editor! Twitter: @rustaceanfm Discord: Rustacean Station Github: @rustacean-station Email: hello@rustacean-station.org Timestamps [@0:58] - Kyle’s Introduction [@3:17] - What got Kyle into sex tech and why start Buttplug [@9:08] - How does Buttplug operate and what functions does it provide? [@11:45] - How did Rust come into their project? [@19:48] - How was their experience with the Rust community? [@28:05] - What protocols does Buttplug use and develop? [@33:33] - Buttplug’s capabilities, limitations, and safety protocols [@44:23] - Why the name “Buttplug”? [@51:53] - Buttplug’s push for not just entertainment but also health and wellness purposes [@56:07] - How people can help contribute to pushing Buttplug’s project [@59:45] - Kyle’s parting thoughts Other Resources Buttplug’s Twitter Buttplug’s Github Credits Intro Theme: Aerocity Audio Editing: Plangora Hosting Infrastructure: Jon Gjengset Show Notes: Plangora Hosts: Allen Wyma

Tim McNamara, Sean Chen and Allen Wyma discuss their highlights from This Week in Rust 442. Themes include security, testing, embedded development and async Rust. Watch out for the cameo by the Ada programming language towards the end! Timestamps Welcome [@00:12] Introductions and agenda [@01:20] Quote of the week [@02:57] Official updates [@03:01] Security advisory: the rustdecimal crate [@06:55] CTCFC Agenda A whirlwind tour of Embedded Rust by James Munns Async Rust for Embedded Systems by Dario Nieuwenhuis Rust in Automotive by Christof Petig and Florian Gilcher [@09:50] Highlights from the newsletter [@10:15] Kani Rust Verifier Project announcement [@20:29] Rocket web framework v0.5 2nd release candidate [@23:35] Xilem, a UI architecture for Rust [@29:30] Over-Engineering A Fairly Simple Coding Challenge [@35:26] RepliByte’s release announcement [@39:07] Securing Crates, discussing side channel attacks [@44:09] Modeling Interconnected Social and Technical Risks in Open Source Software Ecosystems, a related paper [@47:10] Parsing/Recursive Descent Parser [@54:10] Rust Safety with Quentin Ochem and Florian Gilcher Contributing to Rustacean Station Rustacean Station is a community project; get in touch with us if you’d like to suggest an idea for an episode or offer your services as a host or audio editor! Twitter: @rustaceanfm Discord: Rustacean Station Github: @rustacean-station Email: hello@rustacean-station.org Credits Intro Theme: Aerocity Audio Editing: Aleksandar Nikolic Hosting Infrastructure: Jon Gjengset Show Notes: Tim McNamara Hosts: Tim McNamara, Allen Wyma, and Sean Chen

Allen Wyma talks with Rob Ede, lead developer on Actix Web. Actix Web is a powerful, pragmatic, and extremely fast web framework for Rust Contributing to Rustacean Station Rustacean Station is a community project; get in touch with us if you’d like to suggest an idea for an episode or offer your services as a host or audio editor! Twitter: @rustaceanfm Discord: Rustacean Station Github: @rustacean-station Email: hello@rustacean-station.org Timestamps [@0:27] - Rob’s programming background [@3:28] - Rob’s experience with Actix Web [@8:46] - What got Rob into Rust [@14:01] - How Rust came into their project [@22:21] - How Rob got involved in the Actix web framework [@24:28] - Actix Web versions [@30:24] - Why Actix Web does not use Hyper [@38:14] - Actix Web’s upcoming updates and roadmap [@38:56] - Rob’s parting thoughts Other Resources Credits Intro Theme: Aerocity Audio Editing: Plangora Hosting Infrastructure: Jon Gjengset Show Notes: Plangora Hosts: Allen Wyma

Tim McNamara and Allen Wyma discuss their highlights from This Week in Rust 441. Contributing to Rustacean Station Rustacean Station is a community project; get in touch with us if you’d like to suggest an idea for an episode or offer your services as a host or audio editor! Twitter: @rustaceanfm Discord: Rustacean Station Github: @rustacean-station Email: hello@rustacean-station.org Credits Intro Theme: Aerocity Audio Editing: Jan Lund Hosting Infrastructure: Jon Gjengset Show Notes: Tim McNamara Hosts: Tim McNamara and Allen Wyma

Allen Wyma talks with Tobias Hunger, developer on Slint. Slint is a toolkit to efficiently develop fluid graphical user interfaces for any display. Contributing to Rustacean Station Rustacean Station is a community project; get in touch with us if you’d like to suggest an idea for an episode or offer your services as a host or audio editor! Twitter: @rustaceanfm Discord: Rustacean Station Github: @rustacean-station Email: hello@rustacean-station.org Timestamps [@0:30] - Tobias’ introduction [@2:21] - What does Slint offer compared to other GUI frameworks? [@6:52] - Slint’s UI language [@9:02] - From SixtyFPS to Slint, what’s the idea behind the name change? [@14:57] - Different industries that Slint is serving [@18:45] - Three different options for licensing Slint [@21:39] - Slint’s progress and efforts in supporting more customization [@32:07] - Slint’s upcoming projects and roadmap [@35:19] - Tobias parting thoughts Credits Intro Theme: Aerocity Audio Editing: Plangora Hosting Infrastructure: Jon Gjengset Show Notes: Plangora Hosts: Allen Wyma

Allen Wyma talks with Quentin Ochem, Lead of Product Management and Business Development at AdaCore and Florian Gilcher, Managing Director at Ferrous Systems. Rust use in safety-critical industries is becoming more and more desired from users. Allen, Quentin, and Florian discuss the recent partnership between AdaCore and Ferrous Systems. Contributing to Rustacean Station Rustacean Station is a community project; get in touch with us if you’d like to suggest an idea for an episode or offer your services as a host or audio editor! Twitter: @rustaceanfm Discord: Rustacean Station Github: @rustacean-station Email: hello@rustacean-station.org Timestamps [@1:46] - What is Ferrocene? [@6:08] - Why does Ferrocene need to exist? [@10:18] - How can Ferrocene help industries that require high-quality security? [@16:14] - Why AdaCore decided to support Rust. [@21:25] - Does Ada use a VM? [@24:06] - What brought Quentin & Florian together to work on Rust? [@30:52] - What are the changes that came along with AdaCore and Ferrous Systems’ partnership? [@40:46] - How in demand is AdaCore and Ferrous System with their customers in different industries? [@47:01] - AdaCore and Ferrous System’s quality management [@49:35] - Quentin & Florian’s parting thoughts. Credits Intro Theme: Aerocity Audio Editing: Plangora Hosting Infrastructure: Jon Gjengset Show Notes: Plangora Hosts: Allen Wyma

Allen Wyma talks with Eric Smith, author of Game Development with Rust and WebAssembly. Game Development with Rust and WebAssembly teaches you how to make games for the web, using Rust and WebAssembly. Contributing to Rustacean Station Rustacean Station is a community project; get in touch with us if you’d like to suggest an idea for an episode or offer your services as a host or audio editor! Twitter: @rustaceanfm Discord: Rustacean Station Github: @rustacean-station Email: hello@rustacean-station.org Timestamps [@0:59] - Eric’s introduction [@3:26] - Eric’s experience using Rust vs other programming languages [@9:20] - What makes Rust appealing? [@11:32] - Why Rust is becoming a good language for game development. [@13:47] - Comparison of different game engines [@19:48] - Insights on Rust game development [@26:06] - Eric talks about his book — Game Development with Rust and WebAssembly [@29:17] - WebAssembly versus other platforms [@41:29] - Eric’s writing process [@43:24] - Is Rust web ready? [@50:19] - Parting thoughts and where to check out Eric’s book Other Resources Eric’s Github Credits Intro Theme: Aerocity Audio Editing: Plangora Hosting Infrastructure: Jon Gjengset Show Notes: Plangora Hosts: Allen Wyma