Auto merge of #41411 - frewsxcv:rollup, r=frewsxcv

Rollup of 7 pull requests

- Successful merges: #41295, #41348, #41374, #41380, #41391, #41398, #41403
- Failed merges: #41376

.travis.yml

@@ -192,10 +192,6 @@ before_cache:
     grep -v missing |
     xargs docker save |
     gzip > $HOME/docker/rust-ci.tar.gz
-  - if [ ! -f $HOME/rustsrc/cache_valid1 ]; then
-        echo "WARNING rustsrc cache was invalid when saving";
-        rm -rf $HOME/rustsrc && mkdir $HOME/rustsrc;
-    fi
 before_install:
   - zcat $HOME/docker/rust-ci.tar.gz | docker load || true
   - mkdir -p $HOME/rustsrc
@@ -206,7 +202,6 @@ notifications:
 cache:
   directories:
     - $HOME/docker
-    - $HOME/rustsrc
 
 before_deploy:
   - mkdir -p deploy/$TRAVIS_COMMIT

README.md

@@ -198,8 +198,8 @@ The Rust community congregates in a few places:
 * [users.rust-lang.org] - General discussion and broader questions.
 * [/r/rust] - News and general discussion.
 
-[Stack Overflow]: http://stackoverflow.com/questions/tagged/rust
-[/r/rust]: http://reddit.com/r/rust
+[Stack Overflow]: https://stackoverflow.com/questions/tagged/rust
+[/r/rust]: https://reddit.com/r/rust
 [users.rust-lang.org]: https://users.rust-lang.org/
 
 ## Contributing

appveyor.yml

@@ -151,7 +151,6 @@ on_failure:
   - cat %CD%\sccache.log || exit 0
 
 cache:
-  - C:\cache\rustsrc
   - "build/i686-pc-windows-msvc/llvm -> src/rustllvm/llvm-rebuild-trigger"
   - "build/x86_64-pc-windows-msvc/llvm -> src/rustllvm/llvm-rebuild-trigger"
   - "i686-pc-windows-msvc/llvm -> src/rustllvm/llvm-rebuild-trigger"

src/bootstrap/README.md

@@ -4,10 +4,6 @@ This is an in-progress README which is targeted at helping to explain how Rust
 is bootstrapped and in general some of the technical details of the build
 system.
 
-> **Note**: This build system is currently under active development and is not
-> intended to be the primarily used one just yet. The makefiles are currently
-> the ones that are still "guaranteed to work" as much as possible at least.
-
 ## Using rustbuild
 
 The rustbuild build system has a primary entry point, a top level `x.py` script:

src/doc/guide-plugins.md

@@ -1,4 +1,4 @@
 % The (old) Rust Compiler Plugins Guide
 
 This content has moved into
-[the Unstable Book](unstable-book/plugin.html).
+[the Unstable Book](unstable-book/language-features/plugin.html).