Welcome to another issue of This Week in Rust, a weekly summary of Rust's progress and happenings in the community.

What's cooking in master?

48 PRs were merged this week.

Breaking changes

jemalloc has been removed from the runtime. The associated issue is quite scary.
rustdoc struct field visibility is now corrected (it stripped fields where it should not have).
rustdoc also uses the actual privacy rules to strip methods.
format! now gives much better error messages for invalid format strings.
The fmt::Default trait, used for default formatting with format!, is now documented.
include_bin! has been optimized, and the k-nucleotides benchmark now compiles 187x faster.
Vectors now have starts_with and ends_with methods, which take slices.
An abort intrinsic has been added.
Vectors now have a get_opt method.

A new section for new contributors! The new contributors this week are (as reported by git):

The weekly meeting discussed removing rusti, changing the attribute syntax, destructors in statics, and more multi-crate packages with rustpkg.

Rust (and Servo) are participating in the GNOME Outreach Program for Women. A bunch of people have already come into IRC about it.
http://exercism.io is getting full Rust support. This is a very cool resource, and could help a lot getting newcomers acclimated.
Unified Function/method Call Syntax and further simplification.
Safe Memory Management in Cyclone.
Audio from Tim's talk in June is finally available!
An OSdev community has sprung up! The channel is #rust-osdev.
Should I/O use conditions?.
Pointers in Rust: A Guide.
I am on a Rust hiatus, for the time being. TWiR will still be happening, as you are reading it right now.
rust-core - A stub standard library.