Nightly CI build for the Rails repo

Daily build with Ruby head

Failed in 41m 29s
:pipeline: rails-nightly-initial-pipeline
rubocoprubocop --parallel
Waited 15m 18s
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Ran in 4m 1s
actionpack (master) [rack-head]rake test
Waited 15m 35s
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Ran in 1m 57s
activerecord mysql2 (master) [prepared_statements]rake db:mysql:rebuild mysql2:test
Waited 15m 47s
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Ran in 5m 49s
guides (master)rake test
Waited 15m 59s
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Ran in 4m 20s
guides (yjit)rake test
Waited 18m 15s
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Ran in 3m 43s
guides (master-debug)rake test
Waited 18m 13s
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Ran in 6m 44s
Total Job Run Time: 10h 21m