Give a name to every CI job.

Bots that read the log can simply look for `[CI_JOB_NAME=...]` to find out
the job's name.

Author: kennytm

Diff for: .travis.yml

@@ -21,7 +21,7 @@ matrix:
     # "alternate" deployments, these are "nightlies" but have LLVM assertions
     # turned on, they're deployed to a different location primarily for
     # additional testing.
-    - env: IMAGE=dist-x86_64-linux DEPLOY_ALT=1
+    - env: IMAGE=dist-x86_64-linux DEPLOY_ALT=1 CI_JOB_NAME=dist-x86_64-linux-alt
       if: branch = try OR branch = auto
 
     - env: >
@@ -33,6 +33,7 @@ matrix:
         MACOSX_DEPLOYMENT_TARGET=10.7
         NO_LLVM_ASSERTIONS=1
         NO_DEBUG_ASSERTIONS=1
+        CI_JOB_NAME=dist-x86_64-apple-alt
       os: osx
       osx_image: xcode9.3-moar
       if: branch = auto
@@ -53,6 +54,7 @@ matrix:
         MACOSX_STD_DEPLOYMENT_TARGET=10.7
         NO_LLVM_ASSERTIONS=1
         NO_DEBUG_ASSERTIONS=1
+        CI_JOB_NAME=x86_64-apple
       os: osx
       osx_image: xcode9.3-moar
       if: branch = auto
@@ -66,6 +68,7 @@ matrix:
         MACOSX_STD_DEPLOYMENT_TARGET=10.7
         NO_LLVM_ASSERTIONS=1
         NO_DEBUG_ASSERTIONS=1
+        CI_JOB_NAME=i686-apple
       os: osx
       osx_image: xcode9.3-moar
       if: branch = auto
@@ -85,6 +88,7 @@ matrix:
         MACOSX_DEPLOYMENT_TARGET=10.7
         NO_LLVM_ASSERTIONS=1
         NO_DEBUG_ASSERTIONS=1
+        CI_JOB_NAME=dist-i686-apple
       os: osx
       osx_image: xcode9.3-moar
       if: branch = auto
@@ -98,6 +102,7 @@ matrix:
         MACOSX_DEPLOYMENT_TARGET=10.7
         NO_LLVM_ASSERTIONS=1
         NO_DEBUG_ASSERTIONS=1
+        CI_JOB_NAME=dist-x86_64-apple
       os: osx
       osx_image: xcode9.3-moar
       if: branch = auto

Diff for: appveyor.yml

@@ -18,25 +18,31 @@ environment:
   - MSYS_BITS: 64
     RUST_CONFIGURE_ARGS: --build=x86_64-pc-windows-msvc --enable-profiler
     SCRIPT: python x.py test
+    CI_JOB_NAME: x86_64-msvc
   - MSYS_BITS: 32
     RUST_CONFIGURE_ARGS: --build=i686-pc-windows-msvc
     SCRIPT: make appveyor-subset-1
+    CI_JOB_NAME: i686-msvc-1
   - MSYS_BITS: 32
     RUST_CONFIGURE_ARGS: --build=i686-pc-windows-msvc
     SCRIPT: make appveyor-subset-2
+    CI_JOB_NAME: i686-msvc-2
 
   # MSVC aux tests
   - MSYS_BITS: 64
     RUST_CHECK_TARGET: check-aux EXCLUDE_CARGO=1
     RUST_CONFIGURE_ARGS: --build=x86_64-pc-windows-msvc
+    CI_JOB_NAME: x86_64-msvc-aux
   - MSYS_BITS: 64
     SCRIPT: python x.py test src/tools/cargotest src/tools/cargo
     RUST_CONFIGURE_ARGS: --build=x86_64-pc-windows-msvc
+    CI_JOB_NAME: x86_64-msvc-cargo
 
   # MSVC tools tests
   - MSYS_BITS: 64
     SCRIPT: src/ci/docker/x86_64-gnu-tools/checktools.sh x.py /tmp/toolstates.json windows
     RUST_CONFIGURE_ARGS: --build=x86_64-pc-windows-msvc --save-toolstates=/tmp/toolstates.json --enable-test-miri
+    CI_JOB_NAME: x86_64-msvc-tools
 
   # 32/64-bit MinGW builds.
   #
@@ -57,18 +63,21 @@ environment:
     MINGW_URL: https://s3-us-west-1.amazonaws.com/rust-lang-ci2/rust-ci-mirror
     MINGW_ARCHIVE: i686-6.3.0-release-posix-dwarf-rt_v5-rev2.7z
     MINGW_DIR: mingw32
+    CI_JOB_NAME: i686-mingw-1
   - MSYS_BITS: 32
     RUST_CONFIGURE_ARGS: --build=i686-pc-windows-gnu
     SCRIPT: make appveyor-subset-2
     MINGW_URL: https://s3-us-west-1.amazonaws.com/rust-lang-ci2/rust-ci-mirror
     MINGW_ARCHIVE: i686-6.3.0-release-posix-dwarf-rt_v5-rev2.7z
     MINGW_DIR: mingw32
+    CI_JOB_NAME: i686-mingw-2
   - MSYS_BITS: 64
     SCRIPT: python x.py test
     RUST_CONFIGURE_ARGS: --build=x86_64-pc-windows-gnu
     MINGW_URL: https://s3-us-west-1.amazonaws.com/rust-lang-ci2/rust-ci-mirror
     MINGW_ARCHIVE: x86_64-6.3.0-release-posix-seh-rt_v5-rev2.7z
     MINGW_DIR: mingw64
+    CI_JOB_NAME: x86_64-mingw
 
   # 32/64 bit MSVC and GNU deployment
   - RUST_CONFIGURE_ARGS: >
@@ -77,33 +86,38 @@ environment:
       --enable-profiler
     SCRIPT: python x.py dist
     DEPLOY: 1
+    CI_JOB_NAME: dist-x86_64-msvc
   - RUST_CONFIGURE_ARGS: >
       --build=i686-pc-windows-msvc
       --target=i586-pc-windows-msvc
       --enable-full-tools
       --enable-profiler
     SCRIPT: python x.py dist
     DEPLOY: 1
+    CI_JOB_NAME: dist-i686-msvc
   - MSYS_BITS: 32
     RUST_CONFIGURE_ARGS: --build=i686-pc-windows-gnu --enable-full-tools
     SCRIPT: python x.py dist
     MINGW_URL: https://s3-us-west-1.amazonaws.com/rust-lang-ci2/rust-ci-mirror
     MINGW_ARCHIVE: i686-6.3.0-release-posix-dwarf-rt_v5-rev2.7z
     MINGW_DIR: mingw32
     DEPLOY: 1
+    CI_JOB_NAME: dist-i686-mingw
   - MSYS_BITS: 64
     SCRIPT: python x.py dist
     RUST_CONFIGURE_ARGS: --build=x86_64-pc-windows-gnu --enable-full-tools
     MINGW_URL: https://s3-us-west-1.amazonaws.com/rust-lang-ci2/rust-ci-mirror
     MINGW_ARCHIVE: x86_64-6.3.0-release-posix-seh-rt_v5-rev2.7z
     MINGW_DIR: mingw64
     DEPLOY: 1
+    CI_JOB_NAME: dist-x86_64-mingw
 
   # "alternate" deployment, see .travis.yml for more info
   - MSYS_BITS: 64
     RUST_CONFIGURE_ARGS: --build=x86_64-pc-windows-msvc --enable-extended --enable-profiler
     SCRIPT: python x.py dist
     DEPLOY_ALT: 1
+    CI_JOB_NAME: dist-x86_64-msvc-alt
 
 matrix:
   fast_finish: true

Diff for: src/ci/docker/run.sh

@@ -130,6 +130,7 @@ exec docker \
   --env TRAVIS \
   --env TRAVIS_BRANCH \
   --env TOOLSTATE_REPO_ACCESS_TOKEN \
+  --env CI_JOB_NAME="${CI_JOB_NAME-$IMAGE}" \
   --volume "$HOME/.cargo:/cargo" \
   --volume "$HOME/rustsrc:$HOME/rustsrc" \
   --init \

Diff for: src/ci/run.sh

@@ -11,6 +11,10 @@
 
 set -e
 
+if [ -n "$CI_JOB_NAME" ]; then
+  echo "[CI_JOB_NAME=$CI_JOB_NAME]"
+fi
+
 if [ "$NO_CHANGE_USER" = "" ]; then
   if [ "$LOCAL_USER_ID" != "" ]; then
     useradd --shell /bin/bash -u $LOCAL_USER_ID -o -c "" -m user