Rust 1.12 发布了。
Rust 是 Mozilla 的一个新的编程语言，由web语言的领军人物Brendan Eich（js之父），Dave Herman以及Mozilla公司的Graydon Hoare 合力开发。
更新内容：
Many minor improvements to the documentation.
rustc supports three new MUSL targets on ARM:arm-unknown-linux-musleabi, arm-unknown-linux-musleabihf, andarmv7-unknown-linux-musleabihf. These targets produce statically-linked binaries. There are no binary release builds yet though.
In error descriptions,references and unknown numeric types have more human-friendly errors.
The compiler can now be built against LLVM 3.9
Test binaries now support a --test-threads argument to specify the number of threads used to run tests, and which acts the same as theRUST_TEST_THREADS environment variable
The test runner now emits a warning when tests run over 60 seconds
Rust releases now come with source packages that can be installed by rustup via rustup component add rust-src. The resulting source code can be used by tools and IDES, located in the sysroot under lib/rustlib/src.