Rustacean Station

Jon and Ben discuss the highlights of the Rust 2024
Edition.

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: [email protected]

Timestamps & referenced resources

[@03:05] - RPIT lifetime capture rules
[@08:00] - let chains in if and while

if let temporary scope
Mara’s post on “super let”
Tail expression temporary scope


[@19:15] - Match ergonomics reservations
[@24:49] - Unsafe extern blocks
[@29:15] - Unsafe attributes
[@32:03] - unsafe_op_in_unsafe_fn warning
[@34:51] - Disallow references to static mut
[@39:20] - Never type fallback change
[@43:33] - Macro Fragment Specifiers
[@47:47] - gen keyword
[@49:36] - Changes to the prelude
[@50:32] - Add IntoIterator for Box<[T]>
[@56:03] - Newly unsafe functions
[@58:51] - Rust-version aware Cargo resolver
[@1:03:03] - Cargo table and key name consistency
[@1:03:57] - Reject unused inherited default-features
[@1:05:37] - Rustdoc combined doctests
[@1:07:13] - Rustdoc nested include! change
[@1:09:19] - The rustfmt style edition

Credits

Intro Theme: Aerocity

Audio Editing: synchis

Hosting Infrastructure: Jon Gjengset

Show Notes: Jon Gjengset

Hosts: Jon Gjengset and Ben Striegel

Jon and Ben discuss the highlights of the 1.88 through 1.90 releases of 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: [email protected]

Timestamps & referenced resources

[@00:26] - Rust 1.88

[@00:26] - Let chains

The if let temporary scope


[@09:09] - Naked functions
[@11:55] - Boolean configuration
[@14:15] - Cargo automatic cache cleaning
[@17:52] - Stabilized APIs

[@17:52] - hint::select_unpredictable
[@21:16] - <[T]>::as_chunks
[@22:25] - Default for *const T
[@23:13] - HashMap::extract_if
[@23:43] - More metadata from Span


[@24:48] - Changelog deep-dive

[@24:48] - De-stabilize #[bench]
[@26:55] - --no-capture



[@28:31] - Rust 1.89

[@28:40] - Explicitly inferred arguments to const generics
[@30:14] - Mismatched lifetime syntaxes lint
[@35:29] - More x86 target features
[@36:33] - Cross-compiled doctests
[@38:31] - i128 and u128 in extern "C" functions
[@40:38] - Demoting x86_64-apple-darwin to Tier 2

Platform support policy


[@42:18] - Standards Compliant C ABI on wasm32-unknown-unknown

More about the ABI changes


[@46:05] - Stabilized APIs

[@46:05] - File::lock


[@48:34] - Changelog deep-dive

[@48:40] - aarch64 frame pointers

Why do frame pointers matter?


[@49:59] - Allow storing format_args! in variable

Behind the scenes of format_args!


[@51:38] - rustdoc sidebar on mobile



[@52:14] - Rust 1.90

[@52:14] - LLD is now the default linker on x86_64-unknown-linux-gnu

PR with lots of linked resources
rustc performance diff with lld


[@1:01:26] - Cargo adds native support for workspace publishing
[@1:03:03] - Stabilized APIs

[@1:03:26] - u{n}::saturating_sub_signed


[@1:04:20] - Changelog deep-dive

[@1:04:20] - home_dir fall back if HOME is set but empty



Credits

Intro Theme: Aerocity

Audio Editing: synchis

Hosting Infrastructure: Jon Gjengset

Show Notes: Jon Gjengset

Hosts: Jon Gjengset and Ben Striegel

Jon and Ben discuss the highlights of the 1.85 through 1.88 releases of 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: [email protected]

Timestamps & referenced resources

[@01:11] - Rust 1.85

[@02:05] - async closures

RFC 3668
Stabilization report


[@07:45] - Hiding trait implementations from diagnostics
[@09:43] - FromIterator and Extend for tuples
[@12:10] - Updates to std::env::home_dir()

Deprecation discussion
Deprecation PR
Originally abandoned fix
Undeprecation


[@15:19] - Stabilized APIs

[@15:30] - number::midpoint
[@16:18] - Waker::noop
[@17:49] - ptr::fn_addr_eq


[@20:10] - Changelog deep-dive

[@20:10] - De-duplicate and improve definition of c_char
[@22:56] - More constification


[@23:51] - Rust 1.85.1

[@24:46] - Rust 1.86

[@25:24] - Trait upcasting
[@30:49] - HashMaps and slices now support indexing multiple elements mutably
[@33:50] - Allow safe functions to be marked with the #[target_feature] attribute
[@36:21] - Debug assertions that pointers are non-null when required for soundness
[@39:48] - Make missing_abi lint warn by default
[@40:55] - Target deprecation warning for 1.87.0
[@42:25] - Stabilized APIs

[@42:25] - {float}::next_up
[@44:55] - Vec::pop_if


[@46:41] - Changelog deep-dive

[@46:41] - Changing -O to opt-level=3
[@47:47] - Optimized rustc binaries for aarch64
[@49:04] - Deprecate cargo --token
[@49:43] - No more “did you mean” in Cargo
[@50:14] - Sans-serif in rustdoc



[@50:45] - Rust 1.87

[@51:27] - Anonymous pipes
[@53:06] - Safe architecture intrinsics

Update the standard library to Rust 2024


[@55:00] - asm! jumps to Rust code
[@57:06] - Precise capturing in impl Trait in trait definitions

The Captures “trick”
Talk on impl Trait


[@58:45] - Stabilized APIs

[@58:45] - Vec::extract_if
[@1:00:13] - <[T]>::split_off
[@1:01:47] - OsStr::display
[@1:03:40] - <uN>::cast_signed
[@1:04:41] - <uN>::is_multiple_of
[@1:05:31] - <uN>::unbounded_shl
[@1:06:20] - TryFrom<Vec<u8>> for String
[@1:06:46] - Box<MaybeUninit<T>>::write
[@1:08:23] - String::extend_from_within


[@1:07:46] - Changelog deep-dive

[@1:07:46] - Actually un-deprecate home_dir
[@1:10:41] - Cargo SBOM support (RFC 3553)
[@1:11:48] - More Cargo ANSI sequences



Credits

Intro Theme: Aerocity

Audio Editing: synchis

Hosting Infrastructure: Jon Gjengset

Show Notes: Jon Gjengset

Hosts: Jon Gjengset and Ben Striegel

Jon and Ben discuss the highlights of the 1.81 through 1.84 releases of Rust.

This episode was recorded as part of a YouTube live stream on
2025-10-26, 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!

Twitter: @rustaceanfm
Discord: Rustacean Station
Github: @rustacean-station
Email: [email protected]

Timestamps & referenced resources

[@01:58] - Rust 1.81

[@02:05] - core::error::Error

Tracking issue for generic member access
build-std Rust project goal


[@08:27] - New sort implementations

PR implementing the change
Repo with the research


[@10:49] - #[expect(lint)]
[@14:37] - Lint reasons
[@16:18] - Stabilized APIs

[@16:34] - Duration::abs_diff
[@17:25] - hint::assert_unchecked
[@22:36] - fs::exists


[@25:37] - Compatibility notes

[@20:40] - Split panic hook and panic handler arguments
[@23:00] - Abort on uncaught panics in extern "C" functions
[@27:01] - WASI 0.1 target naming changed
[@30:10] - Fix for CVE-2024-43402

CVE announcement





[@33:39] - Rust 1.82

[@33:39] - cargo info
[@35:06] - Apple target promotions

Platform support tiers


[@40:10] - Precise capturing use<..> syntax

The Captures “trick”
Talk on impl Trait


[@47:24] - Native syntax for creating a raw pointer

Pointers Are Complicated
Pointers Are Complicated II
Pointers Are Complicated III


[@53:43] - Safe items with unsafe extern
[@59:32] - Unsafe attributes
[@1:03:44] - Omitting empty types in pattern matching

The never type


[@1:11:33] - Floating-point NaN semantics and const
[@1:17:41] - Constants as assembly immediates
[@1:19:06] - Safely addressing unsafe statics
[@1:22:56] - Stabilized APIs

[@1:23:03] - thread::Builder::spawn_unchecked
[@1:25:10] - Working with MaybeUninit
[@1:25:48] - Exposed SIMD intrinsics


[@1:26:14] - Changelog deep-dive

[@1:26:26] - Rewrite binary search implementation



[@1:27:30] - Rust 1.83

[@1:27:55] - New const capabilities
[@1:31:50] - Stabilized APIs

[@1:32:06] - New io::ErrorKind variants
[@1:33:10] - Option::get_or_insert_default
[@1:34:56] - char::MIN


[@1:35:48] - Changelog deep-dive

[@1:35:48] - Unicode 16 Emoji
[@1:39:51] - Sysroot trim-paths
[@1:41:31] - cargo update informs of outdated versions
[@1:42:43] - cargo --timings dark mode
[@1:43:15] - Checksum-based freshness in Cargo nightly



[@1:44:26] - Rust 1.84

[@1:44:40] - Cargo considers Rust version for dependency version selection
[@1:49:03] - Migration to the new trait solver begins
[@1:51:47] - Strict provenance APIs

Pointers Are Complicated
Pointers Are Complicated II
Pointers Are Complicated III
Rust has provenance
Gankra’s write-up on raw pointer design
Strict provenance APIs tracking issue


[@1:57:53] - Stabilized APIs

[@1:57:58] - <int>::isqrt
[@1:58:15] - core::ptr::dangling


[@1:59:15] - Changelog deep-dive

[@1:59:15] - Include Cargo.lock in published crates
[@2:00:12] - wasm32-wasi target removed
[@2:01:06] - &raw *invalid_ptr is fine



Credits

Intro Theme: Aerocity

Audio Editing: synchis

Hosting Infrastructure: Jon Gjengset

Show Notes: Jon Gjengset

Hosts: Jon Gjengset and Ben Striegel

Allen Wyma talks with Jonathan Kelley, creator of Dioxus, a framework for building web, mobile, and desktop apps with a single Rust codebase.

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: [email protected]

Timestamps

[@00:00] - Meet Jonathan Kelley, Creator of Dioxus
[@01:55] - The Origin & Core Technology of Dioxus
[@24:45] - Hot Reloading for a Faster Workflow
[@30:20] - The Road to a Stable 1.0 Release
[@36:36] - The Future Vision: Full-Stack, Native APIs, and Beyond
[@42:55] - Collaboration within the Rust UI Ecosystem

Credits
Intro Theme: Aerocity

Audio Editing: Plangora

Hosting Infrastructure: Jon Gjengset

Show Notes: Plangora

Hosts: Allen Wyma