This fixes `issue-28848.rs` -- it also handles another case that the
AST region checker gets wrong (`wf-self-type.rs`).  I don't actually
think that this is the *right way* to be enforcing this constraint --
I think we should probably do it more generally, perhaps by editing
`predicates_of` for the impl itself. The chalk-style implied bounds
setup ought to fix this.

In particular, after the first for a given region variable. This
suppresses a lot of duplicate errors.

Fixes #54124

Use a keyword in raw identifier example

That's a very small documentation fix. The text says "you can now use keywords as identifiers" but example didn't use a keyword and would work without raw identifiers.

improve search tabs look

Fixes #55056.

![screenshot from 2018-10-16 19-06-48](https://user-images.githubusercontent.com/3050060/47034247-1e08b280-d177-11e8-9c1e-c7320af9b561.png)

![screenshot from 2018-10-16 19-09-39](https://user-images.githubusercontent.com/3050060/47034255-2365fd00-d177-11e8-8686-4765d3e56ff5.png)

With this, I think it'll be more obvious.

cc @memoryruins

r? @QuietMisdreavus

Give OpTy access to locals for priroda

r? @oli-obk

Move parse-fail tests to UI

cc https://github.com/rust-lang/rust/issues/53353

r? @davidtwco

Replace CanonicalVar with DebruijnIndex

Close #49887

Also make `layout_of_local` accept any `Frame`

[NLL] Use new region infer errors when explaining borrows

Use the new free region infer errors for explaining borrows

This gives at least some explanation for why a borrow is expected to
last for a certain free region. Also:

* Reports E0373: "closure may outlive the current function" with NLL.
* Special cases the case of returning a reference to (or value referencing) a local variable or temporary (E0515).
* Special case assigning a reference to a local variable in a closure to a captured variable. (E0521)

Closes #51026 - `regions-nested-fns-2.rs` isn't changed to that diagnostic, since that would not be the correct error here.
Closes #51169
cc #53882 - The error is (IMO) better now, but it could be better when we trace lifetimes in these error messages.

r? @nikomatsakis cc @pnkfelix

This gives at least some explanation for why a borrow is expected to
last for a certain free region. Also:

* Reports E0373: "closure may outlive the current function" with NLL.
* Special cases the case of returning a reference to (or value
  referencing) a local variable or temporary (E0515).
* Special case assigning a reference to a local variable in a closure
  to a captured variable.

Enable one fully ignored test

Except those testing parsing during macro expansion

miri engine: Hooks for basic stacked borrows

r? @oli-obk

Update Cargo, build curl/OpenSSL statically via features

In addition to to updating Cargo's submodule and Cargo's dependencies,
this also updates Cargo's build to build OpenSSL statically into Cargo
as well as libcurl unconditionally. This removes OpenSSL build logic
from the bootstrap code, and otherwise requests that even on OSX we
build curl statically.

In addition to to updating Cargo's submodule and Cargo's dependencies,
this also updates Cargo's build to build OpenSSL statically into Cargo
as well as libcurl unconditionally. This removes OpenSSL build logic
from the bootstrap code, and otherwise requests that even on OSX we
build curl statically.

Rollup of 5 pull requests

Successful merges:

 - #55156 (Fixed: Multiple errors on single typo in match pattern)
 - #55189 (update books for the next release)
 - #55193 (make asm diagnostic instruction optional)
 - #55203 (Write an initial version of the `program_clauses` callback)
 - #55213 (ignore target folders)

Failed merges:

r? @ghost

Adds UseAsConst and UseAsStatic to replace Return in consts/statics.
Don't report the arguments to an overloaded operator as CallArguments.
Also don't report "escaping data" in these items.