Set up CI with Azure Pipelines (#926)

Use Azure Pipelines for CI. This migrates away from Travis and
Appveyor.

ci/azure-cargo-check.yml

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+parameters:
+  noDefaultFeatures: '--no-default-features'
+
+jobs:
+- job: ${{ parameters.name }}
+  displayName: ${{ parameters.displayName }}
+  pool:
+    vmImage: ubuntu-16.04
+  steps:
+  - template: azure-install-rust.yml
+    parameters:
+      rust_version: ${{ parameters.rust }}
+
+  - ${{ each crate in parameters.crates }}:
+    - ${{ each feature in crate.value }}:
+      - ${{ if eq(crate.key, 'tokio') }}:
+        - script: cargo check ${{ parameters.noDefaultFeatures }} --features ${{ feature }}
+          displayName: Check features = ${{ feature }}
+
+      - ${{ if not(eq(crate.key, 'tokio')) }}:
+        - script: cargo check ${{ parameters.noDefaultFeatures }} --features ${{ feature }}
+          displayName: Check `${{ crate.key }}`, features = ${{ feature }}
+          workingDirectory: $(Build.SourcesDirectory)/${{ crate.key }}
+
+  - ${{ if parameters.benches }}:
+    - script: cargo check --benches --all
+      displayName: Check benchmarks

ci/azure-check-minrust.yml

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+jobs:
+- job: ${{ parameters.name }}
+  displayName: Min supported Rust version
+  pool:
+    vmImage: ubuntu-16.04
+  steps:
+  - template: azure-install-rust.yml
+    parameters:
+      rust_version: ${{ parameters.rust_version }}
+
+  - script: cargo check --all
+    displayName: cargo check --all

ci/azure-cross-compile.yml

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+jobs:
+- job: ${{ parameters.name }}
+  displayName: ${{ parameters.displayName }}
+  pool:
+    vmImage: ubuntu-16.04
+  steps:
+  - template: azure-install-rust.yml
+    parameters:
+      rust_version: stable
+
+  - script: sudo apt-get install gcc-multilib
+    displayName: "Install gcc-multilib"
+
+  - script: rustup target add ${{ parameters.target }}
+    displayName: "Add target"
+
+  - script: cargo check --all --exclude tokio-tls --target ${{ parameters.target }}
+    displayName: Check source
+
+  - script: cargo check --tests --all --exclude tokio-tls --target ${{ parameters.target }}
+    displayName: Check tests

ci/azure-deploy-docs.yml

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+parameters:
+  dependsOn: []
+
+jobs:
+- job: documentation
+  displayName: 'Deploy API Documentation'
+  condition: and(succeeded(), eq(variables['Build.SourceBranch'], 'refs/heads/master'))
+  pool:
+    vmImage: 'Ubuntu 16.04'
+  dependsOn:
+    - ${{ parameters.dependsOn }}
+  steps:
+  - template: azure-install-rust.yml
+    parameters:
+      rust_version: stable
+  - script: |
+      cargo doc --all --no-deps
+      cp -R target/doc '$(Build.BinariesDirectory)'
+    displayName: 'Generate Documentation'
+  - script: |
+      set -e
+
+      git --version
+      ls -la
+      git init
+      git config user.name 'Deployment Bot (from Azure Pipelines)'
+      git config user.email '[email protected]'
+      git config --global credential.helper 'store --file ~/.my-credentials'
+      printf "protocol=https\nhost=github.com\nusername=carllerche\npassword=%s\n\n" "$GITHUB_TOKEN" | git credential-store --file ~/.my-credentials store
+      git remote add origin https://github.com/tokio-rs/tokio
+      git checkout -b gh-pages
+      git add .
+      git commit -m 'Deploy Tokio API documentation'
+      git push -f origin gh-pages
+    env:
+      GITHUB_TOKEN: $(githubPersonalToken)
+    workingDirectory: '$(Build.BinariesDirectory)'
+    displayName: 'Deploy Documentation'

ci/azure-install-rust.yml

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+steps:
+  # Linux and macOS.
+  - script: |
+      set -e
+      curl https://sh.rustup.rs -sSf | sh -s -- -y --default-toolchain $RUSTUP_TOOLCHAIN
+      echo "##vso[task.setvariable variable=PATH;]$PATH:$HOME/.cargo/bin"
+    env:
+      RUSTUP_TOOLCHAIN: ${{parameters.rust_version}}
+    displayName: "Install rust (*nix)"
+    condition: not(eq(variables['Agent.OS'], 'Windows_NT'))
+
+  # Windows.
+  - script: |
+      curl -sSf -o rustup-init.exe https://win.rustup.rs
+      rustup-init.exe -y --default-toolchain %RUSTUP_TOOLCHAIN%
+      set PATH=%PATH%;%USERPROFILE%\.cargo\bin
+      echo "##vso[task.setvariable variable=PATH;]%PATH%;%USERPROFILE%\.cargo\bin"
+    env:
+      RUSTUP_TOOLCHAIN: ${{parameters.rust_version}}
+    displayName: "Install rust (windows)"
+    condition: eq(variables['Agent.OS'], 'Windows_NT')
+
+  # All platforms.
+  - script: |
+        rustc -Vv
+        cargo -V
+    displayName: Query rust and cargo versions

ci/azure-rustfmt.yml

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+jobs:
+# Check formatting
+- job: ${{ parameters.name }}
+  displayName: Check rustfmt
+  pool:
+    vmImage: ubuntu-16.04
+  steps:
+    - template: azure-install-rust.yml
+      parameters:
+        rust_version: stable
+    - script: |
+        rustup component add rustfmt
+      displayName: Install rustfmt
+    - script: |
+        cargo fmt --all -- --check
+      displayName: Check formatting

ci/azure-test-stable.yml

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+jobs:
+- job: ${{ parameters.name }}
+  displayName: ${{ parameters.displayName }}
+  strategy:
+    matrix:
+      Linux:
+        vmImage: ubuntu-16.04
+
+      ${{ if parameters.cross }}:
+        MacOS:
+          vmImage: macOS-10.13
+        Windows:
+          vmImage: vs2017-win2016
+  pool:
+    vmImage: $(vmImage)
+
+  steps:
+  - template: azure-install-rust.yml
+    parameters:
+      rust_version: stable
+
+  - ${{ each crate in parameters.crates }}:
+    - ${{ if eq(crate, 'tokio') }}:
+      - script: cargo test
+        env:
+          LOOM_MAX_DURATION: 10
+          CI: 'True'
+        displayName: cargo test
+
+    - ${{ if not(eq(crate, 'tokio')) }}:
+      - script: cargo test
+        env:
+          LOOM_MAX_DURATION: 10
+          CI: 'True'
+        displayName: cargo test -p ${{ crate }}
+        workingDirectory: $(Build.SourcesDirectory)/${{ crate }}

ci/azure-tsan.yml

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+jobs:
+- job: ${{ parameters.name }}
+  displayName: TSAN
+  strategy:
+    matrix:
+      Timer:
+        cmd: cargo test -p tokio-timer --test hammer
+      Threadpool:
+        cmd: cargo test -p tokio-threadpool --tests
+  pool:
+    vmImage: ubuntu-16.04
+  steps:
+  - template: azure-install-rust.yml
+    parameters:
+      rust_version: nightly-2018-11-18
+
+  - script: |
+        set -e
+        # Make sure the benchmarks compile
+        export ASAN_OPTIONS="detect_odr_violation=0 detect_leaks=0"
+        export TSAN_OPTIONS="suppressions=`pwd`/ci/tsan"
+        export RUST_BACKTRACE=1
+
+        # Run address sanitizer
+        RUSTFLAGS="-Z sanitizer=address" \
+        $(cmd) --target x86_64-unknown-linux-gnu
+
+        # Run thread sanitizer
+        RUSTFLAGS="-Z sanitizer=thread" \
+        $(cmd) --target x86_64-unknown-linux-gnu
+    displayName: TSAN / MSAN
+    env:
+      TSAN: yes
+