May 10, 2025

What's New in Rust 1.79 and 1.80

1 hour 27 minutes

Jon and Ben discuss the highlights of the 1.79 and 1.80 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

[@01:02] - Rust 1.79

[@01:02] - Inline const expressions

[@08:33] - Bounds in associated type position

[@14:11] - Extending automatic temporary lifetime extension

Mara’s blog post on temporary lifetimes

[@21:55] - Frame pointers enabled in standard library builds

Does omitting the frame pointer really affect performance?

[@25:37] - Stabilized APIs

[@25:37] - {integer}::unchecked_add

[@27:39] - <*const [T]>::len

[@29:21] - <[u8]>::utf8_chunks

[@31:21] - CStr::count_bytes

[@32:41] - num::NonZero

[@36:30] - io::Error::downcast

[@36:50] - path::absolute

[@38:18] - Changelog deep-dive

[@38:31] - Stabilize WASM target features that are in phase 4 and 5

[@39:15] - Document overrides of clone_from() in core/std

[@41:46] - Switch to using gitoxide by default for listing files in cargo

[@43:03] - Stabilize lint unnameable_types

[@44:46] - manual_clamp lint

[@45:46] - Rust 1.80

[@46:09] - LazyCell and LazyLock

[@53:42] - Checked cfg names and values

Detailed blog post on checked cfg

[@56:41] - Exclusive ranges in patterns

[@58:52] - Stabilized APIs

[@59:05] - Vec::<[T; N]>::into_flattened

<[[T; N]]>::as_flattened

[@1:00:31] - <[u8]>::trim_ascii

[@1:02:06] - NonNull::add and other ptr-like methods

[@1:03:41] - impl IntoIterator for Box<[T]>

[@1:05:46] - Option::take_if

[@1:07:30] - Ipv4Addr::to_bits

[@1:09:10] - Changelog deep-dive

[@1:09:25] - x86_64-unknown-linux-none

[@1:11:07] - Add size_of and align_of to the prelude

[@1:12:34] - Never type fallback flowing into unsafe

[@1:17:29] - New panics and aborts in the standard library

Abort when OwnedFd is violated

Panic if set_extension adds /

[@1:20:28] - Restore enum variants in rustdoc for type aliases

[@1:21:12] - Change assigning_clones lint to pedantic

[@1:22:15] - Turn lints into hard errors

[@1:22:49] - env::set_var regression

[@1:24:34] - StdoutLock regression

[@1:26:00] - Rust 1.80.1

Fixes miscompilation when comparing

floats

and false positives in the dead_code

lint.

Credits

Intro Theme: Aerocity

Audio Editing: Jon Gjengset

Hosting Infrastructure: Jon Gjengset

Show Notes: Jon Gjengset

Hosts: Jon Gjengset and Ben Striegel

...more

View all episodes

By Rustacean Station

4.9

6262 ratings

May 10, 2025

What's New in Rust 1.79 and 1.80

1 hour 27 minutes

Jon and Ben discuss the highlights of the 1.79 and 1.80 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

[@01:02] - Rust 1.79

[@01:02] - Inline const expressions

[@08:33] - Bounds in associated type position

[@14:11] - Extending automatic temporary lifetime extension

Mara’s blog post on temporary lifetimes

[@21:55] - Frame pointers enabled in standard library builds

Does omitting the frame pointer really affect performance?

[@25:37] - Stabilized APIs

[@25:37] - {integer}::unchecked_add

[@27:39] - <*const [T]>::len

[@29:21] - <[u8]>::utf8_chunks

[@31:21] - CStr::count_bytes

[@32:41] - num::NonZero

[@36:30] - io::Error::downcast

[@36:50] - path::absolute

[@38:18] - Changelog deep-dive

[@38:31] - Stabilize WASM target features that are in phase 4 and 5

[@39:15] - Document overrides of clone_from() in core/std

[@41:46] - Switch to using gitoxide by default for listing files in cargo

[@43:03] - Stabilize lint unnameable_types

[@44:46] - manual_clamp lint

[@45:46] - Rust 1.80

[@46:09] - LazyCell and LazyLock

[@53:42] - Checked cfg names and values

Detailed blog post on checked cfg

[@56:41] - Exclusive ranges in patterns

[@58:52] - Stabilized APIs

[@59:05] - Vec::<[T; N]>::into_flattened

<[[T; N]]>::as_flattened

[@1:00:31] - <[u8]>::trim_ascii

[@1:02:06] - NonNull::add and other ptr-like methods

[@1:03:41] - impl IntoIterator for Box<[T]>

[@1:05:46] - Option::take_if

[@1:07:30] - Ipv4Addr::to_bits

[@1:09:10] - Changelog deep-dive

[@1:09:25] - x86_64-unknown-linux-none

[@1:11:07] - Add size_of and align_of to the prelude

[@1:12:34] - Never type fallback flowing into unsafe

[@1:17:29] - New panics and aborts in the standard library

Abort when OwnedFd is violated

Panic if set_extension adds /

[@1:20:28] - Restore enum variants in rustdoc for type aliases

[@1:21:12] - Change assigning_clones lint to pedantic

[@1:22:15] - Turn lints into hard errors

[@1:22:49] - env::set_var regression

[@1:24:34] - StdoutLock regression

[@1:26:00] - Rust 1.80.1

Fixes miscompilation when comparing

floats

and false positives in the dead_code

lint.

Credits

Intro Theme: Aerocity

Audio Editing: Jon Gjengset

Hosting Infrastructure: Jon Gjengset

Show Notes: Jon Gjengset

Hosts: Jon Gjengset and Ben Striegel

...more

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What's New in Rust 1.79 and 1.80

More shows like Rustacean Station

The Changelog: Software Development, Open Source

Accidental Tech Podcast

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The TWIML AI Podcast (formerly This Week in Machine Learning & Artificial Intelligence)

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Syntax - Tasty Web Development Treats

CoRecursive: Coding Stories

Practical AI

The Real Python Podcast

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