* Use make check-lexer to verify the grammar.
 * Extend grammar/README
 * Add make clean-grammar rule
 * Add target check-build-lexer-verifier to make tidy, so it will build the verifier with every build and catch future errors

Beginners may try to adapt the tutorial to develop their own code.
When using different dependencies, they may use the wildcard for
versioning.  Since they are new to the language, they will not know
that the wildcard asterisk is a string, not a token.  Make the correct
format more explicit, to remove one potential source of frustration.

This is a partial fix for issue rust-lang#34808.

Most of the wording was copied verbatim from the RFC. Main difference is that I moved the actual template to the top of the section.

It also makes the error explanations the longest section in the guidelines doc for now.

This adds a question and answer to the Q&A section of the Copy
docs. Specifically, it asks the question I asked while reading
the docs, and gives its answer.

Was surprised to learn that heaps were used in this way, then realized upon reading [the linked paper](http://www.cs.cmu.edu/afs/cs/academic/class/15213-f98/doc/dsa.pdf) that it's a totally different type of heap—an important distinction.

There is no longer a `Repr` trait, so mentioning a missing impl of it
was potentially confusing.

…annotation to match other files.

Part of rust-lang#35233
Fixes rust-lang#35190

r? @jonathandturner

The span underlines only the name of the thing that's not a struct rather
than the whole expression.

…rors, r=GuillaumeGomez

extended information for slice pattern errors (E0527 through E0529)

r? @GuillaumeGomez

Merge guidelines from RFC 1567 into UX Guidelines.

This is a partial fix for issue rust-lang#34808.

Most of the wording was copied verbatim from the RFC. Main difference is that I moved the actual template to the top of the section.

It also makes the error explanations the longest section in the guidelines doc for now.

Fix grammar verifcation

I wanted to improve the [grammar-section](https://doc.rust-lang.org/grammar.html#items-and-attributes) but I can not build it.

r? @steveklabnik @brson

EDIT: I resolved some of the issues, removed the compiler output from the entry.

…llaumeGomez

Add doc examples for `range::RangeArgument::{start,end}`.

None

Add Derive not possible question to Copy

This adds a question and answer to the Q&A section of the Copy
docs. Specifically, it asks the question I asked while reading
the docs, and gives its answer.

cc @steveklabnik

…eveklabnik

Add doc examples for FileType struct

Part of rust-lang#29356.

r? @steveklabnik

Add io::Error doc examples

Fixes rust-lang#29359.

r? @steveklabnik

…klabnik

Provide more explicit example of wildcard version in guessing game doc.

Beginners may try to adapt the tutorial to develop their own code.
When using different dependencies, they may use the wildcard for
versioning.  Since they are new to the language, they will not know
that the wildcard asterisk is a string, not a token.  Make the correct
format more explicit, to remove one potential source of frustration.

A couple `std::net` doc improvements.

None

Add doc example for Vec

Fixes rust-lang#29380.

r? @steveklabnik

Add doc example for `std::ffi::NulError::nul_position`.

None

Update the-stack-and-the-heap.md

Was surprised to learn that heaps were used in this way, then realized upon reading [the linked paper](http://www.cs.cmu.edu/afs/cs/academic/class/15213-f98/doc/dsa.pdf) that it's a totally different type of heap—an important distinction.

…labnik

Doc `std::thread::park_timeout`

r? @steveklabnik

…thandturner

E0132 update

Fixes rust-lang#35258.

r? @jonathandturner

…-format, r=jonathandturner

E0109 Update error format

Fixes rust-lang#35247 as part of rust-lang#35233.

r? @jonathandturner

Clean up `std::raw` docs

There is no longer a `Repr` trait, so mentioning a missing impl of it was potentially confusing.

r? @steveklabnik

…t, r=jonathandturner

Updated E0071 to new format.

Bonus: the span underlines only the name of the thing that's not a struct rather than the whole expression.

Part of rust-lang#35233.
Fixes rust-lang#35220.

r? @jonathandturner

… r=jonathandturner

E0060 e0061 format update

This fixes rust-lang#35215 and fixes rust-lang#35216 as part of rust-lang#35233

A separate issue will be opened to track the bonus portion of the tickets as @jaredwy will be handling that part.

?r @jonathandturner

Update E0079 to new format

Fixes rust-lang#35222. Part of rust-lang#35233.
r? @GuillaumeGomez

…mat, r=jonathandturner

Update error message for E0172

Fixes rust-lang#35272 as part of rust-lang#35233.

r? @jonathandturner

Update error message E0178

Fixes rust-lang#35273 as part of rust-lang#35233.

Set label for unreachable pattern

Part of rust-lang#35233
Fixes rust-lang#35190

r? @jonathandturner

Update error message E0120

Fixes rust-lang#35253 as part of rust-lang#35233.

r? @jonathandturner

…t, r=jonathandturner

E0110 update error format

Fixes rust-lang#35248

Part of rust-lang#35233

r? @jonathandturner

…urner

Update E0124 to the new error format

Part of rust-lang#35233. This resolves rust-lang#35255.

r? @jonathandturner