Merge branch 'master' into issue-32540

.gitmodules

@@ -5,10 +5,6 @@
 [submodule "src/compiler-rt"]
 	path = src/compiler-rt
 	url = https://github.com/rust-lang/compiler-rt.git
-[submodule "src/rt/hoedown"]
-	path = src/rt/hoedown
-	url = https://github.com/rust-lang/hoedown.git
-	branch = rust-2015-09-21-do-not-delete
 [submodule "src/jemalloc"]
 	path = src/jemalloc
 	url = https://github.com/rust-lang/jemalloc.git

.travis.yml

@@ -40,7 +40,10 @@ matrix:
     - env: IMAGE=x86_64-gnu-distcheck
     - env: IMAGE=x86_64-gnu-incremental
 
-    # OSX builders
+    # OSX builders running tests, these run the full test suite.
+    #
+    # Note that the compiler is compiled to target 10.8 here because the Xcode
+    # version that we're using, 8.2, cannot compile LLVM for OSX 10.7.
     - env: >
         RUST_CHECK_TARGET=check
         RUST_CONFIGURE_ARGS=--build=x86_64-apple-darwin
@@ -52,8 +55,10 @@ matrix:
       os: osx
       osx_image: xcode8.2
       install: &osx_install_sccache >
-        travis_retry curl -o /usr/local/bin/sccache https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror/2017-03-16-sccache-x86_64-apple-darwin &&
-          chmod +x /usr/local/bin/sccache
+        travis_retry curl -o /usr/local/bin/sccache https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror/2017-03-24-sccache-x86_64-apple-darwin &&
+          chmod +x /usr/local/bin/sccache &&
+        travis_retry curl -o /usr/local/bin/stamp https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror/2017-03-17-stamp-x86_64-apple-darwin &&
+          chmod +x /usr/local/bin/stamp
     - env: >
         RUST_CHECK_TARGET=check
         RUST_CONFIGURE_ARGS=--build=i686-apple-darwin
@@ -66,31 +71,33 @@ matrix:
       osx_image: xcode8.2
       install: *osx_install_sccache
 
+    # OSX builders producing releases. These do not run the full test suite and
+    # just produce a bunch of artifacts.
+    #
+    # Note that these are running in the `xcode7` image instead of the
+    # `xcode8.2` image as above. That's because we want to build releases for
+    # OSX 10.7 and `xcode7` is the latest Xcode able to compile LLVM for 10.7.
     - env: >
         RUST_CHECK_TARGET=dist
         RUST_CONFIGURE_ARGS="--build=i686-apple-darwin --enable-extended"
         SRC=.
         DEPLOY=1
         RUSTC_RETRY_LINKER_ON_SEGFAULT=1
         SCCACHE_ERROR_LOG=/tmp/sccache.log
-        MACOSX_DEPLOYMENT_TARGET=10.8
-        MACOSX_STD_DEPLOYMENT_TARGET=10.7
+        MACOSX_DEPLOYMENT_TARGET=10.7
       os: osx
-      osx_image: xcode8.2
-      install: >
-        travis_retry curl -o /usr/local/bin/sccache https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror/2017-03-16-sccache-x86_64-apple-darwin &&
-          chmod +x /usr/local/bin/sccache
+      osx_image: xcode7
+      install: *osx_install_sccache
     - env: >
         RUST_CHECK_TARGET=dist
         RUST_CONFIGURE_ARGS="--target=aarch64-apple-ios,armv7-apple-ios,armv7s-apple-ios,i386-apple-ios,x86_64-apple-ios --enable-extended"
         SRC=.
         DEPLOY=1
         RUSTC_RETRY_LINKER_ON_SEGFAULT=1
         SCCACHE_ERROR_LOG=/tmp/sccache.log
-        MACOSX_DEPLOYMENT_TARGET=10.8
-        MACOSX_STD_DEPLOYMENT_TARGET=10.7
+        MACOSX_DEPLOYMENT_TARGET=10.7
       os: osx
-      osx_image: xcode8.2
+      osx_image: xcode7
       install: *osx_install_sccache
 
     # "alternate" deployments, these are "nightlies" but don't have assertions
@@ -105,10 +112,9 @@ matrix:
         DEPLOY_ALT=1
         RUSTC_RETRY_LINKER_ON_SEGFAULT=1
         SCCACHE_ERROR_LOG=/tmp/sccache.log
-        MACOSX_DEPLOYMENT_TARGET=10.8
-        MACOSX_STD_DEPLOYMENT_TARGET=10.7
+        MACOSX_DEPLOYMENT_TARGET=10.7
       os: osx
-      osx_image: xcode8.2
+      osx_image: xcode7
       install: *osx_install_sccache
 
 env:
@@ -118,6 +124,12 @@ env:
     # AWS_SECRET_ACCESS_KEY=...
     - secure: "Pixhh0hXDqGCdOyLtGFjli3J2AtDWIpyb2btIrLe956nCBDRutRoMm6rv5DI9sFZN07Mms7VzNNvhc9wCW1y63JAm414d2Co7Ob8kWMZlz9l9t7ACHuktUiis8yr+S4Quq1Vqd6pqi7pf2J++UxC8R/uLeqVrubzr6+X7AbmEFE="
 
+# Note that this is overridden on OSX builders
+install: >
+  travis_retry curl -o $HOME/stamp https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror/2017-03-17-stamp-x86_64-unknown-linux-musl &&
+    chmod +x $HOME/stamp &&
+    export PATH=$PATH:$HOME
+
 before_script:
   - >
       echo "#### Disk usage before running script:";
@@ -127,13 +139,14 @@ before_script:
 script:
   - >
       if [ "$ALLOW_PR" = "" ] && [ "$TRAVIS_BRANCH" != "auto" ]; then
-          echo skipping, not a full build;
-      elif [ "$TRAVIS_OS_NAME" = "osx" ]; then
-          travis_retry sh -c 'git submodule deinit -f . && git submodule update --init' &&
-          src/ci/run.sh;
+          echo skipping, not a full build
       else
-          travis_retry sh -c 'git submodule deinit -f . && git submodule update --init' &&
-          src/ci/docker/run.sh $IMAGE;
+          stamp src/ci/init_repo.sh . "$HOME/rustsrc" &&
+          if [ "$TRAVIS_OS_NAME" = "osx" ]; then
+              stamp src/ci/run.sh;
+          else
+              stamp src/ci/docker/run.sh $IMAGE;
+          fi
       fi
 
 after_success:
@@ -147,24 +160,45 @@ after_failure:
       echo "#### Build failed; Disk usage after running script:";
       df -h;
       du . | sort -nr | head -n100
+
+  # One of these is the linux sccache log, one is the OSX sccache log. Instead
+  # of worrying about what system we are just cat both. One of these commands
+  # will fail but that's ok, they'll both get executed.
   - cat obj/tmp/sccache.log
   - cat /tmp/sccache.log
 
+  # Random attempt at debugging currently. Just poking around in here to see if
+  # anything shows up.
+  - ls $HOME/Library/Logs/DiagnosticReports/
+
+  # attempt to debug anything killed by the oom killer on linux, just to see if
+  # it happened
+  - dmesg | grep -i kill
+
 # Save tagged docker images we created and load them if they're available
+# Travis saves caches whether the build failed or not, nuke rustsrc if
+# the failure was while updating it (as it may be in an bad state)
+# https://github.com/travis-ci/travis-ci/issues/4472
 before_cache:
   - docker history -q rust-ci |
     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
 
 notifications:
   email: false
 
 cache:
   directories:
     - $HOME/docker
+    - $HOME/rustsrc
 
 before_deploy:
   - mkdir -p deploy/$TRAVIS_COMMIT

CONTRIBUTING.md

@@ -311,9 +311,13 @@ To save @bors some work, and to get small changes through more quickly, when
 the other rollup-eligible patches too, and they'll get tested and merged at
 the same time.
 
-To find documentation-related issues, sort by the [A-docs label][adocs].
+To find documentation-related issues, sort by the [T-doc label][tdoc].
 
-[adocs]: https://github.com/rust-lang/rust/issues?q=is%3Aopen+is%3Aissue+label%3AA-docs
+[tdoc]: https://github.com/rust-lang/rust/issues?q=is%3Aopen%20is%3Aissue%20label%3AT-doc
+
+You can find documentation style guidelines in [RFC 1574][rfc1574].
+
+[rfc1574]: https://github.com/rust-lang/rfcs/blob/master/text/1574-more-api-documentation-conventions.md#appendix-a-full-conventions-text
 
 In many cases, you don't need a full `./x.py doc`. You can use `rustdoc` directly
 to check small fixes. For example, `rustdoc src/doc/reference.md` will render

appveyor.yml

@@ -45,14 +45,14 @@ environment:
   - MSYS_BITS: 32
     RUST_CONFIGURE_ARGS: --build=i686-pc-windows-gnu --enable-ninja
     SCRIPT: python x.py test
-    MINGW_URL: https://s3.amazonaws.com/rust-lang-ci
-    MINGW_ARCHIVE: i686-4.9.2-release-win32-dwarf-rt_v4-rev4.7z
+    MINGW_URL: https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror
+    MINGW_ARCHIVE: i686-6.2.0-release-win32-dwarf-rt_v5-rev1.7z
     MINGW_DIR: mingw32
   - MSYS_BITS: 64
     SCRIPT: python x.py test
     RUST_CONFIGURE_ARGS: --build=x86_64-pc-windows-gnu --enable-ninja
-    MINGW_URL: https://s3.amazonaws.com/rust-lang-ci
-    MINGW_ARCHIVE: x86_64-4.9.2-release-win32-seh-rt_v4-rev4.7z
+    MINGW_URL: https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror
+    MINGW_ARCHIVE: x86_64-6.2.0-release-win32-seh-rt_v5-rev1.7z
     MINGW_DIR: mingw64
 
   # 32/64 bit MSVC and GNU deployment
@@ -70,15 +70,15 @@ environment:
   - MSYS_BITS: 32
     RUST_CONFIGURE_ARGS: --build=i686-pc-windows-gnu --enable-extended --enable-ninja
     SCRIPT: python x.py dist
-    MINGW_URL: https://s3.amazonaws.com/rust-lang-ci
-    MINGW_ARCHIVE: i686-4.9.2-release-win32-dwarf-rt_v4-rev4.7z
+    MINGW_URL: https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror
+    MINGW_ARCHIVE: i686-6.2.0-release-win32-dwarf-rt_v5-rev1.7z
     MINGW_DIR: mingw32
     DEPLOY: 1
   - MSYS_BITS: 64
     SCRIPT: python x.py dist
     RUST_CONFIGURE_ARGS: --build=x86_64-pc-windows-gnu --enable-extended --enable-ninja
-    MINGW_URL: https://s3.amazonaws.com/rust-lang-ci
-    MINGW_ARCHIVE: x86_64-4.9.2-release-win32-seh-rt_v4-rev4.7z
+    MINGW_URL: https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror
+    MINGW_ARCHIVE: x86_64-6.2.0-release-win32-seh-rt_v5-rev1.7z
     MINGW_DIR: mingw64
     DEPLOY: 1
 
@@ -115,8 +115,8 @@ install:
   - set PATH=C:\Python27;%PATH%
 
   # Download and install sccache
-  - appveyor-retry appveyor DownloadFile https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror/2017-03-16-sccache-x86_64-pc-windows-msvc
-  - mv 2017-03-16-sccache-x86_64-pc-windows-msvc sccache.exe
+  - appveyor-retry appveyor DownloadFile https://s3.amazonaws.com/rust-lang-ci/rust-ci-mirror/2017-03-24-sccache-x86_64-pc-windows-msvc
+  - mv 2017-03-24-sccache-x86_64-pc-windows-msvc sccache.exe
   - set PATH=%PATH%;%CD%
 
   # Download and install ninja
@@ -182,6 +182,7 @@ deploy:
     on:
       branch: auto
       DEPLOY: 1
+    max_error_retry: 5
 
   # This provider is the same as the one above except that it has a slightly
   # different upload directory and a slightly different trigger
@@ -198,6 +199,7 @@ deploy:
     on:
       branch: auto
       DEPLOY_ALT: 1
+    max_error_retry: 5
 
 # init:
 #   - ps: iex ((new-object net.webclient).DownloadString('https://raw.githubusercontent.com/appveyor/ci/master/scripts/enable-rdp.ps1'))