What's New in Rust 1.56 and 1.57

Jon and Ben discuss the highlights of the 1.56 and 1.57 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 [@01:14] - Rust 2021 edition [@01:16] - What is an edition? [@05:03] - Disjoint captures in closures Niko’s “view types” proposal [@09:00] - IntoIterator for arrays [@11:12] - Or patterns in macro_rules [@13:31] - New default Cargo feature resolver Details on the new resolver [@15:16] - Additions to the prelude std::prelude FromIterator [@19:38] - Panic macro consistency and new reserved syntax [@20:33] - Implicit formatting captures (more on Reddit) [@25:00] - Reserved syntax for “f-strings” [@27:54] - Why panic! had to change [@28:55] - Other uses for reserved syntax [@30:15] - Warnings promoted to errors Future incompatibility warnings [@35:23] - cargo fix [@36:20] - Rust 1.56 [@36:30] - Cargo.toml rust-version Cargo book entry [@42:54] - New bindings in binding @ pattern [@44:27] - Stabilized APIs [@49:27] - Changelog deep-dive [@49:27] - impl From<[(K, V), N]> for collections RFC for adding collection literal macros [@53:07] - Remove P: Unpin bound on impl Future for Pin [@55:16] - Instant backsliding protection optimization May end up being removed! [@58:01] - LLVM 13 upgrade LLVM’s new pass manager [@59:23] - Have Cargo set environment variables [@1:00:17] - Rust 1.56.1 Security advisory The “Trojan Source” vulnerability Rust RFC on non-ASCII identifiers [@1:04:52] - Rust 1.57 [@1:05:20] - Panic in const contexts [@1:07:20] - Custom Cargo profiles Cargo book on profiles [@1:08:45] - Fallible allocation Fallible collection allocation RFC Linux Torvals on handling allocation failures Rust features still needed by the Linux kernel [@1:12:33] - Stabilized APIs [@1:16:45] - Changelog deep-dive [@1:16:50] - Vec::leak no longer allocates [@1:18:03] - Nintendo 3DS added as Tier 3 platform [@1:19:03] - Cargo no longer passes through RUSTFLAGS Environment variables set by Cargo [@1:20:13] - Lots more #[must_use] in std [@1:22:00] - File::read_to_* optimized [@1:23:24] - Curly braces macros accept following . and ? [@1:25:22] - Banter – Rust all the way down. Credits Intro Theme: Aerocity Audio Editing: Aerocity Hosting Infrastructure: Jon Gjengset Show Notes: Jon Gjengset Hosts: Jon Gjengset and Ben Striegel Transcript: Eric Seppanen