Hello and welcome to another issue of This Week in Rust! Rust is a systems language pursuing the trifecta: safe, concurrent, and fast. This is a weekly summary of its progress and community. Want something mentioned? Send me an email! Want to get involved? We love contributions.

It's time for 0.11! The prerelease candidate is available.

What's cooking on master?

73 pull requests were merged in the last week.

Breaking Changes

The complete breaking change log is available here, and you can view it with git log --no-merges --grep 'breaking-change' --since 6/21/2014 --until 6/28/2014. Some important ones:

*T is now known as *const T.
struct literals are not allowed in expressions that precede a block.
The type of 42 is no longer int but will be inferred as normal.

Other Changes

In a series of many PRs, Steve has started work on a new tutorial, which is available (in draft form) here.
Tasks are now reusable, in that one can create a task, run a closure in it, and if it did not fail, the task can be reused.
Lints now have a plugin infrastructure, meaning your own, arbitrary lints can now be defined!

New Contributors

Alex Gaynor
Arjan Topolovec
Conrad Kleinespel
Michael Zhou
Mike Capp
Pawel Olzacki
Robert Buonpastore
Ruud van Asseldonk
Zach Pomerantz

New RFCs

Community Updates

There was a meetup in San Fransisco on Thursday, about gamedev. The recording is available.
Damien Katz seems to be recruiting for Rust developers to build a distributed object store.
The meeting notes have a new home.
Racer progress update, including vim support!
rusticom, a NES emulator.
Cargo alpha announcement
Static checking of units in Servo
A basic dominion simulator
ncurses Gravity Worm clone
dash-rust now has a nightly docset feed
0.11 prerelease testing
Piston game engine update

This Week in Cargo

Cargo is the Mozilla-funded package manager slash build tool for Rust code. Cargo is being developed by Tilde, in part due to their previous experience building Bundler. You can find Cargo's website at http://crates.io/. Apparently, a startup is already using cargo.io. Darn! The source of the website is here currently, if you'd like to add or change anything.

Cargo had its first 'release' on Monday, so this is the very first TWiC! As part of this, Cargo has moved to the rust-lang organization. That commit also serves as the original release. Cargo is 'pre-alpha,' so no actual releases have been tagged. Yet. Basically, Cargo is at a point where it is able to be used for basic Rust projects, and dogfooding it will help make it awesome.

Uptake has been pretty good: A search on GitHub shows a large number of code that references Cargo. Of course, some people will still use other projects to handle this, especially with Cargo's lack of features.

For a short introduction to Cargo, see my section in the new Guide. One note that's not in there, however: you're intended to check your Cargo.toml file into version control, similarly to a Makefile.

Notable additions

Eighteen pull requets landed in this first week. Wow! Here are the bigger ones:

New Contributors

o11c
gilles-leblanc
huonw
mcpherrinm
dtrebbien
halorgium
Arcterus
samebchase

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