What's New in Rust 1.42 and 1.43
What's New in Rust 1.42 and 1.43  
Podcast: Rustacean Station
Published On: Fri May 08 2020
Description: Jon and Ben examine the features of Rust 1.42 and Rust 1.43. 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: hello@rustacean-station.org Timestamps & referenced resources [@01:45] - Useful line numbers on unwrap #[track_caller] [@04:22] - Subslice patterns Stabilization report Ignoring with .. @-patterns struct updates with .. [@16:09] - matches! Macro documentation Jon proposes assert_matches [@18:13] - Error::description deprecation RFC Soft deprecation in 1.27 failure thiserror anyhow eyre Jane expermenting with track_caller in eyre [@24:23] - Other changes in 1.42 Documentation improvements to cargo [@26:47] - Rust 1.43 [@27:17] - item macro fragments and parser improvements in general More details about the problem PR that fixed this [@33:30] - Primitive type inference [@36:22] - Smaller changes surfacing in release notes Steve Klabnik’s blog post Rust 2020 roadmap on “finishing things” [@39:00] - New cargo environment variables Cargo target directory assert_cmd Environment variables set by cargo [@43:39] - Associated consts on numeric types Ben’s RFC Issue from way back when The associated constants PR (2015) max_value PR (2015) PR for Ben’s RFC [@51:54] - What can we do in an edition? Error::source RFC [@54:20] - The primitive module use paths The Rust prelude Next edition prelude [@57:50] - String implements AsMut [@59:40] - cargo profile in config cargo global configuration [@1:02:03] - New feature resolver cargo merges features between dependency types [@1:05:30] - Lots of new clippy lints: 1.42, 1.43 All the clippy lints Pruning unwanted clippy lints [@1:08:52] - Rustfest postponed Credits Intro Theme: Aerocity Audio Editing: @alphastrata Hosting Infrastructure: Jon Gjengset Show Notes: Jon Gjengset Hosts: Jon Gjengset and Ben Striegel