Removes size and alignment as rust reserved words

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:pipeline:curl -sS "https://raw.githubusercontent.com/bazelbuild/continuous-integration/master/buildkite/bazelci.py?$(date +%s)" -o bazelci.py && python3.6 bazelci.py project_pipeline | tee /dev/tty | buildkite-agent pipeline upload
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Buildifier
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:ubuntu: Ubuntu 18.04 LTS (OpenJDK 11, gcc 7.5.0)curl -sS https://raw.githubusercontent.com/bazelbuild/continuous-integration/master/buildkite/bazelci.py?1731366187 -o bazelci.py && python3.6 bazelci.py runner --task=ubuntu1804
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:ubuntu: Ubuntu 20.04 LTScurl -sS https://raw.githubusercontent.com/bazelbuild/continuous-integration/master/buildkite/bazelci.py?1731366187 -o bazelci.py && python3.8 bazelci.py runner --task=ubuntu2004
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:mac: macOScurl -sS https://raw.githubusercontent.com/bazelbuild/continuous-integration/master/buildkite/bazelci.py?1731366187 -o bazelci.py && python3 bazelci.py runner --task=macos
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Total Job Run Time: 3m 28s