Nightly CI build for the Rails repo

Daily build with Ruby head

Failed in 16m 41s
:pipeline: rails-nightly-initial-pipeline
:docker: rubylang/ruby:master
Waited 10s
·
Ran in 8m 17s
:docker: rubylang/ruby:master-debug
Timed Out
Waited 2s
·
Ran in 16m 1s
Total Job Run Time: 24m 54s