Windows now uses `GetSystemTimePreciseAsFileTime` on versions of Windows that support it.

* Don't say that Unpin is used to prevent moves, because it is used
  to *allow* moves
* Be more precise about kindedness of things, it is
  `Pin<Pointer<Data>>`, rather than just `Pin<Pointer>`.

fix building errors
use wr-c++ as linker

This fixes a regression introduced in
rust-lang#74855.

In 2e6f2e8, we added a main function to the publish_toolstate.py script.
Unfortunately, we missed that the Python program implicitly declares global
variables in that code, which means that adding a function changes variable
scoping and breaks other code.

This commit avoids introducing that function and adds a warning to future
editors of the code.

…=dtolnay

Hexagon libstd: update type defs

Fixes for VxWorks

r? @alexcrichton

Unconfuse Unpin docs a bit

* Don't say that Unpin is used to prevent moves, because it is used
  to *allow* moves
* Be more precise about kindedness of things, it is
  `Pin<Pointer<Data>>`, rather than just `Pin<Pointer>`.

…ge-change-history, r=pickfire

Prevent automatic page change when using history

Fixes rust-lang#75774.

…etep998

Update docs for SystemTime Windows implementation

Windows now uses `GetSystemTimePreciseAsFileTime` (since rust-lang#69858) on versions of Windows that support it.

…button, r=Cldfire

Fix font color for help button in ayu and dark themes

A nice before/after:

![Screenshot from 2020-08-23 14-47-07](https://user-images.githubusercontent.com/3050060/90979230-0dd07400-e554-11ea-85f7-046dfca65e8e.png)

![Screenshot from 2020-08-23 14-47-03](https://user-images.githubusercontent.com/3050060/90979233-145eeb80-e554-11ea-8e63-1864c3f2699b.png)

For the ayu theme, the change is very "light", the font color was already close to white, so I unified the color with the pictures of the other buttons:

![Screenshot from 2020-08-23 15-20-45](https://user-images.githubusercontent.com/3050060/90979281-5e47d180-e554-11ea-9993-8595057481ab.png)
![Screenshot from 2020-08-23 15-20-50](https://user-images.githubusercontent.com/3050060/90979279-5daf3b00-e554-11ea-8d39-beb57091aba7.png)

…heme-ayu, r=pickfire

Unify theme choices border color in ayu theme

There was a slight color difference in the theme choice menu borders:

![Screenshot from 2020-08-24 10-37-05](https://user-images.githubusercontent.com/3050060/91022913-22654880-e5f6-11ea-8165-302b2d4e701e.png)
![Screenshot from 2020-08-24 10-37-58](https://user-images.githubusercontent.com/3050060/91022918-242f0c00-e5f6-11ea-989a-e26a28196d09.png)

r? @Cldfire

Shorten liballoc vec resize intra-doc link

r? @jyn514

Fix swapped stability attributes for rustdoc lints

This fixes a regression introduced in rust-lang#74855. Previously, `missing_doc_code_examples` would be run on stable and `private_doc_tests` would only be run on nightly. Now, it correctly does the reverse.
Closes rust-lang#75951.
r? @ehuss

…nnytm

Avoid function-scoping global variables

In 2e6f2e8, we added a main function to the publish_toolstate.py script.
Unfortunately, we missed that the Python program implicitly declares global
variables in that code, which means that adding a function changes variable
scoping and breaks other code.

This commit avoids introducing that function and adds a warning to future
editors of the code.