Top rust issues

Tracking issue for RFC 2532, "Associated type defaults"

A-associated-items B-RFC-approved B-unstable C-tracking-issue E-needs-mentor F-associated_type_defaults T-lang

Tracking issue for `Zero`/`One`/`iter_arith` stabilization

B-unstable T-libs final-comment-period

Tracking issue for changing the global, default allocator (RFC 1974)

B-unstable C-tracking-issue T-libs

`Borrow` and `AsRef` are redundant

C-enhancement P-high T-doc

Tracking Issue for intra-doc links in libstd

A-intra-doc-links C-tracking-issue E-easy E-mentor T-doc T-rustdoc

Abort instead of unwinding past FFI functions

A-ffi C-tracking-issue I-unsound 💥 P-high T-compiler relnotes

Tracking issue for Option::xor

B-unstable C-tracking-issue E-easy T-libs disposition-merge finished-final-comment-period

Regression in rlua crate tests between rustc 1.23.0 and 1.24.0, only on windows.

C-bug O-windows P-high T-compiler regression-from-stable-to-stable

IntoIterator should be implemented for [T; N] not just references

A-iterators C-feature-accepted T-libs

Tracking issue for RFC #495 (features `slice_patterns` and `advanced_slice_patterns`)

B-RFC-implemented B-unstable C-tracking-issue P-medium T-lang