Merge pull request #998 from rust-lang/master

Deploy Master Changes

Author: Manishearth

.gitattributes

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+locales/* linguist-documentation

.github/workflows/main.yml

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+name: CI
+on: [push, pull_request]
+env:
+  RUST_BACKTRACE: 1
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v1
+      - name: Formatting
+        run: |
+          # Install extra rustup components
+          rustup component add rustfmt
+          cargo fmt --all -- --check
+      - name: Correct Nightly Version
+        # Ensure everything is run and tested with the same nightly version
+        run: ci/check-nightly-version.sh
+      - name: Test
+        run: |
+          set -euo pipefail
+          IFS=$'\n\t'
+          # Check if the code is good
+          cargo build --all --locked
+          cargo test --all --locked