What's New in Rust 1.54 and 1.55 from Rustacean Station

What's New in Rust 1.54 and 1.55

44 minutes Posted Oct 25, 2021 at 1:27 am.

] Rust 1.54

] Attributes can invoke function-like macros

] wasm32 intrinsics stabilized

] Incremental compilation is re-enabled by default

] Stabilized APIs

] Changelog deep-div

] cargo report and future incompatibility lints

] LLVM mutable noalias is on again

] CARGO_TARGET_TMPDIR

] Use semver 1.0

] Rust 1.55

] Cargo deduplicates compiler errors

] Faster, more correct float parsing

] io::ErrorKind variants updates

] Open range patterns added

] Stabilized APIs

] MaybeUninit

] ops::ControlFlow

] string::Drain::as_str

] Changelog deep-dive

] Build scripts informed about rustc configuration

] cargo clippy --fix

] Clippy lint override survey

] #[doc(hidden)] on trait implementations

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Show notes

Jon and Ben discuss the highlights of the 1.54 and 1.55 releases of Rust.

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Timestamps & referenced resources

[@00:37] - Rust 1.54

[@00:55] - Attributes can invoke function-like macros

The doc attribute

[@04:04] - wasm32 intrinsics stabilized

std::intrinsics

Target families

[@06:59] - Incremental compilation is re-enabled by default

Rust 1.52.1 disables incremental compilation

Incremental compilation issues tracking issue

[@08:55] - Stabilized APIs

[@

[@11:04] - cargo report and future incompatibility lints

[@14:12] - LLVM mutable noalias is on again

[@16:24] - CARGO_TARGET_TMPDIR

[@17:24] - Use semver 1.0

Checking semver 1.0 against crates.io

[@19:18] - Rust 1.55

[@19:26] - Cargo deduplicates compiler errors

[@20:24] - Faster, more correct float parsing

The PR

Reddit post with details

[@22:20] - io::ErrorKind variants updates

[@28:08] - Open range patterns added

[@29:44] - Stabilized APIs

[@29:44] - MaybeUninit

[@32:44] - ops::ControlFlow

Try trait (v2) RFC

[@35:59] - string::Drain::as_str

[@

[@38:08] - Build scripts informed about rustc configuration

[@38:38] - cargo clippy --fix

[@39:10] - Clippy lint override survey

[@40:07] - #[doc(hidden)] on trait implementations

Credits

Intro Theme: Aerocity

Audio Editing: Jeremy Jung

Hosting Infrastructure: Jon Gjengset

Show Notes: Jon Gjengset

Hosts: Jon Gjengset and Ben Striegel

Transcript: Eric Seppanen

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