Rustacean Station

What's New in Rust 1.74 and 1.75

Oct 9, 2024

Discover the latest advancements in Rust with discussions on new lint configurations and enhanced Cargo features for streamlined authentication. Dive deep into opaque return types and the stabilization of `impl Trait` for better async functions. Explore the introduction of safety-focused saturating arithmetic and crucial compatibility notes regarding older platforms. Learn about performance optimizations using PGO and Bolt, along with significant improvements in documentation and error handling. Tune in for insights into Rust's evolving type system!

01:23:33

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Episode notes

Podcast summary created with Snipd AI

Quick takeaways

Rust 1.74 introduced lint configuration through Cargo, promoting cleaner source code and easier sharing of lint settings across workspaces.

The enhanced registry authentication in Cargo 1.74 improves security by integrating with system utilities for storage of credentials, facilitating private registry access.

Stabilization of projections in opaque return types enhances the flexibility of Rust's type system, enabling developers to utilize async functions more effectively.

Deep dives

Rust 1.74.0 Lint Configuration Through Cargo

The introduction of lint configuration in Rust 1.74.0 through Cargo is a significant step forward for the language's usability. Previously, lints were often defined within the source code, creating clutter and complexity, especially in crate root files. Now, developers can specify lints directly in the 'Cargo.toml' file, promoting cleaner source code while allowing lint settings to be shared easily across workspaces. This change aims to reduce noise in the source files and gives authors more control over warning outputs and compiler behaviors, aligning Rust more closely with user expectations.

Intro

3min

Navigating Rust Lint Rules and Cargo Innovations

9min

Exploring Opaque Return Types in Rust

4min

Exploring Saturating Arithmetic and Platform Deprecations in Rust

3min

Stabilization of Mem Transmute Copy in Rust

2min

Enhancements in Rust 1.74: Features and Documentation

14min

Rust Version Evolution: Async Functions and Type Management

20min

Stabilizing Rust: MVP and New Features

5min

Optimizing Rust with PGO and Bolt

5min

10.

Exploring Rust 1.74 and 1.75 Features

19min

Jon and Ben discuss the highlights of the 1.74 and 1.75 releases of Rust.

This episode was recorded as part of a YouTube live stream on 2024-05-18, which you can still watch.

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!

Timestamps & referenced resources

[@00:13] - Rust 1.74

[@00:21] - Lint configuration through Cargo
[@07:42] - Cargo registry authentication
- Cargo documentation
[@11:02] - Projections into opaque return types
[@14:23] - Stabilized APIs
- [@14:23] - io::Error::other
- [@15:38] - Saturating wrapper type
- [@18:43] - const transmute_copy
[@18:03] - Compatibility notes
[@20:51] - Changelog deep-dive
- [@20:51] - --keep-going
- [@22:42] - Cargo -p partial versions
- [@24:21] - Warning boxes in rustdoc
- [@26:02] - Generic parameters in rustdoc search
- [@29:08] - impl Step for Ipv4
- [@31:33] - private_in_public lint
  - RFC 2145
- [@36:02] - New Cargo lockfile recommendation
  - Rationale

[@37:34] - Rust 1.74.1

No super interesting changes.

But, check in on PR filed during stream.

[@41:56] - Rust 1.75

[@41:56] - async fn and -> impl Trait in traits
- Blog announcing what’s actually stabilizing
- Jon’s impl Trait talk
[@55:34] - Pointer byte offset APIs
[@58:22] - Code layout optimizations for rustc
- BOLT
[@1:04:34] - Stabilized APIs
- [@1:04:34] - Atomic*::from_ptr
- [@1:06:42] - OS-independent file times
- [@1:07:46] - Option::as_slice
  - Long reddit comment
[@1:09:59] - Changelog deep-dive
- [@1:09:59] - impl BufRead for VecDeque<u8>
- [@1:12:40] - Workspace-aware cargo new
- [@1:13:20] - matching with exhaustive integer ranges
- [@1:14:52] - Cross-crate auto-inlining for small fns
- [@1:18:31] - Cargo output hyperlinking

[@1:22:00] - Mid-stream PR check-in

Another PR check-in and tracking in homu rustc build queue.

Credits

Intro Theme: Aerocity

Audio Editing: Aerocity

Hosting Infrastructure: Jon Gjengset

Show Notes: Jon Gjengset

Hosts: Jon Gjengset and Ben Striegel

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Rustacean Station

What's New in Rust 1.74 and 1.75

Podcast summary created with Snipd AI

Quick takeaways

Deep dives

Rust 1.74.0 Lint Configuration Through Cargo

Cargo Registry Authentication

Projections in Opaque Return Types

Error Handling Enhancements

Cargo New Command Enhancements

Updated Rustdoc Features

Contributing to Rustacean Station

Timestamps & referenced resources

[@00:13] - Rust 1.74

[@37:34] - Rust 1.74.1

[@41:56] - Rust 1.75

[@1:22:00] - Mid-stream PR check-in

Credits

Get the Snipd
podcast app

AI-powered
podcast player

Discover
highlights

Save any
moment

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& Export

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podcast player

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highlights

Rustacean Station

What's New in Rust 1.74 and 1.75

Podcast summary created with Snipd AI

Quick takeaways

Deep dives

Rust 1.74.0 Lint Configuration Through Cargo

Cargo Registry Authentication

Projections in Opaque Return Types

Error Handling Enhancements

Cargo New Command Enhancements

Updated Rustdoc Features

Contributing to Rustacean Station

Timestamps & referenced resources

[@00:13] - Rust 1.74

[@37:34] - Rust 1.74.1

[@41:56] - Rust 1.75

[@1:22:00] - Mid-stream PR check-in

Credits

Get the Snipdpodcast app

AI-poweredpodcast player

Discoverhighlights

Save anymoment

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Discoverhighlights

Get the Snipd
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