What's New in Rust 1.48 and 1.49

Jon and Ben take a look at the features of the Rust 1.48 and 1.49 releases.

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!

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Timestamps & referenced resources

[@01:10] - Rust 1.48

• [@01:10] - Easier linking in Rustdoc
• [@03:57] - Adding search aliases in Rustdoc
• [@07:03] - Implement TryFrom<Vec<T>> for fixed-length arrays
  • slice::as_chunks
• [@10:51] - future::ready and future::pending
• [@15:21] - More stdlib APIs made const
• [@18:05] - mem::uninitialized will now panic if any inner types inside a struct or enum disallow zero-initialization
• [@20:18] - When trait bounds on associated types or opaque types are ambiguous, the compiler no longer makes an arbitrary choice on which bound to use

[@24:20] - Rust 1.49

• [@24:20] - 64-bit ARM Linux reaches Tier 1
• [@30:20] - Test framework captures output in threads
• [@33:36] - Library changes
  • poll::is_ready and poll::is_pending made const
• [@34:36] - You can now bind by reference and by move in patterns
• [@38:09] - Unions can now implement Drop, and you can now have a field in a union with ManuallyDrop<T>

[@42:00] - Rust Survey 2020 Results

Credits

Intro Theme: Aerocity

Audio Editing: T.J. Telan

Hosting Infrastructure: Jon Gjengset

Show Notes: Ben Striegel

Hosts: Jon Gjengset and Ben Striegel