|  | @@ -361,7 +361,6 @@ def targets():
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				|  |  |          PythonDistribTest('linux', 'x64', 'ubuntu1604', source=True),
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				|  |  |          PythonDistribTest('linux', 'x64', 'ubuntu1804', source=True),
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				|  |  |          # Ruby
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				|  |  | -        RubyDistribTest('linux', 'x64', 'jessie', ruby_version='ruby_2_3'),
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				|  |  |          RubyDistribTest('linux', 'x64', 'jessie', ruby_version='ruby_2_4'),
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				|  |  |          RubyDistribTest('linux', 'x64', 'jessie', ruby_version='ruby_2_5'),
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				|  |  |          RubyDistribTest('linux', 'x64', 'jessie', ruby_version='ruby_2_6'),
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				|  | @@ -370,7 +369,7 @@ def targets():
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				|  |  |          RubyDistribTest('linux',
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				|  |  |                          'x64',
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				|  |  |                          'jessie',
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				|  |  | -                        ruby_version='ruby_2_3',
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				|  |  | +                        ruby_version='ruby_2_4',
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				|  |  |                          source=True),
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				|  |  |          RubyDistribTest('linux', 'x64', 'centos7'),
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				|  |  |          RubyDistribTest('linux', 'x64', 'fedora23'),
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