Binary prefixes (such as Gi for ‘gibi-’ in GiB) are defined by
International Electrotechnical Commission (IEC) and not in the
International System of Units (SI).

* Update bootstrap to recognize the cputype 'sparcv9' (used on Solaris)
* Change to never use -fomit-frame-pointer on Solaris or for sparc
* Adds rust target sparcv9-sun-solaris

Fixes rust-lang#39901

The mx_handle_wait_* syscalls in Magenta were renamed to
mx_object_wait. The syscall is used in the Magenta/Fuchsia
implementation of std::process, to wait on child processes.

In addition, this patch enables the use of the system provided
libbacktrace library on Fuchsia targets. Symbolization is not yet
working, but at least it allows printing hex addresses in a backtrace
and makes building succeed when the backtrace feature is not disabled.

So I just encountered this error for the first time. It's unclear what
it means, why I encountered it, or how to fix it. But worst of all, it
has a random newline and weird indentation! This commit fixes that last
bit.

Fixes rust-lang#38520

Otherwise the errors from borrowck come out in an unpredictable
order.

This was specific to the old special-case handling of statics in
borrowck.

Fix variable name typo

Don't rely on curl's --retry, it appears to not work for some errors like SSL
errors.

book: binary prefixed are defined by IEC and not in SI

Binary prefixes (such as Gi for ‘gibi-’ in GiB) are defined by
International Electrotechnical Commission (IEC) and not in the
International System of Units (SI).

Though to be honest I’d just reword the previous paragraph to use ‘1 GiB’.

enable tools to use test runners programmatically

Add Documentation for Custom Attributes and Error Reporting in Procedural Macros

This fixes rust-lang#39821 .

I'm not sure if the process of how to access custom attributes should be documented as well.
But I feel, that this should rather be documented in `syn`

Additional docs for Vec, String, and slice trait impls

r? @steveklabnik

Fix test caching on Windows/GNU

Addresses rust-lang#36385 (comment)

Previously the sysroot directory was purged on every build and mingw startup objects were rebuilt unconditionally and always triggered test reruns.
Now mingw startup objects are built in the native directory and then copied into the sysroot directory. They are also rebuilt only when necessary, so test caching works.

…richton

add solaris sparcv9 support

Fixes rust-lang#39901

Properly display note/expected details

Given a file

```rust
fn takes_cb(f: fn(i8)) {}

fn main() {
    fn callback(x: i32) {}
    takes_cb(callback)
}
```

output

```rust
error[E0308]: mismatched types
 --> file2.rs:5:22
  |
5 |             takes_cb(callback)
  |                      ^^^^^^^^ expected i8, found i32
  |
  = note: expected type `fn(i8)`
             found type `fn(i32) {main::callback}`
```

Fix rust-lang#39343.

…chton

Follow rename of mx_handle_wait Magenta syscalls

The mx_handle_wait_* syscalls in Magenta were renamed to
mx_object_wait. The syscall is used in the Magenta/Fuchsia
implementation of std::process, to wait on child processes.

In addition, this patch enables the use of the system provided
libbacktrace library on Fuchsia targets. Symbolization is not yet
working, but at least it allows printing hex addresses in a backtrace
and makes building succeed when the backtrace feature is not disabled.

…k-2, r=eddyb

transition borrowck to visit all **bodies** and not item-likes

This is a better structure for incremental compilation and also more compatible with the eventual borrowck mir. It also fixes rust-lang#38520 as a drive-by fix.

r? @eddyb

Fix indentation of error message

So I just encountered this error for the first time. It's unclear what
it means, why I encountered it, or how to fix it. But worst of all, it
has a random newline and weird indentation! This commit fixes that last
bit.

<img width="680" alt="screen shot 2017-02-18 at 4 35 36 pm" src="https://cloud.githubusercontent.com/assets/1529387/23097087/0ef5ac4a-f5f9-11e6-9132-18ce759f7092.png">

…sxcv

Add missing urls and examples into Barrier structs

r? @frewsxcv

Clarify thread::Builder::stack_size docs

Add two pieces of information:

* the size is in bytes
* the actual stack size might be bigger.

Also change the example to use a more realistic value of 32 kilobytes.

r? @steveklabnik

…crichton

Update std::fmt module docs for landing of rust-lang#33642.

Since rust-lang#33642, it's no longer true that all references to a given format argument must use the same type. The docs don't seem to have been updated.

Update exception-safety.md

Fix variable name typo

Add missing urls in MutexGuard docs

r? @frewsxcv

rustbuild: Retry downloads by default

Don't rely on curl's --retry, it appears to not work for some errors like SSL
errors.

…s, r=GuillaumeGomez

Correct another typo in procedural macros chapter of the Book.

Another (and the only remaining) instance of the lets/let's mistake fixed in c8292fc / 36b00cf.

r? @steveklabnik