Implement Show for &mut [T]
native: Unlink unix socket paths on drop

This prevents unix sockets from remaining on the system all over the place, and
more closely mirrors the behavior of libuv and windows pipes.
There are no 64-bit Windows snapshots yet, so we'll use 32-bit ones instead.
Upgrade compiler-rt
add volatile copy/copy_nonoverlapping/set

This exposes volatile versions of the memset/memmove/memcpy intrinsics.

The volatile parameter must be constant, so this can't simply be a
parameter to our intrinsics.
Added examples for parse_bytes(buf: &[u8], radix: uint) in int_macros.rs and uint_macros.rs
Removed trailing whitespace in on line 242 in int_macros.rs and on line 156 in uint_macros.rs
Fixed Win64 build
auto merge of #13687 : exscape/mut-vector-Show/master, r=alexcrichton

Removes the need for hacks to println! mutable slices, among other things.
auto merge of #13690 : alexcrichton/rust/unlink-unix-pipe, r=brson

This prevents unix sockets from remaining on the system all over the place, and
more closely mirrors the behavior of libuv and windows pipes.
auto merge of #13692 : vadimcn/rust/Win64-pre, r=alexcrichton

Stack unwinding doesn't work yet, so this won't pass a lot of tests.
auto merge of #13693 : thestinger/rust/mem, r=alexcrichton

This exposes volatile versions of the memset/memmove/memcpy intrinsics.

The volatile parameter must be constant, so this can't simply be a
parameter to our intrinsics.
auto merge of #13694 : jacob-hegna/rust/master, r=brson

... and uint_macros.rs
Honor hidden doc attribute of derivable trait methods

Closes #13698
Hide trait rc::RcBoxPtr from docs

It is for internal use only and should not appear in docs.
test: Ignore tcp-connect-timeout on freebsd

The BSD builders are failing with a different error that is not a timeout error
(Connection reset by peer), so this test isn't really all that useful on
freebsd. Due to a lack of a better idea of how to test a connect timeout, this
test is going to just be ignored for now.
Remove special rooting code from trans

[breaking-change]

cc #11586
rustc: remove usage of root_map from astencode
rustc: Remove root_map usage from _match
rustc: Remove root_map usage from lifetime