ddtrace 0.12.0.beta2

• addressable 2.4.0 ~> 2.4.0

• appraisal 2.5.0 ~> 2.2

• builder 3.2.4 >= 0

• minitest 5.10.1 = 5.10.1

• pry 0.10.4 ~> 0.10.4

• pry-stack_explorer 0.4.9.3 ~> 0.4.9.2

• rake 10.5.0 ~> 10.5

• redcarpet 3.6.0 ~> 3.4

• rspec 3.13.0 ~> 3.0

• rspec-collection_matchers 1.2.1 ~> 1.1

• rubocop 0.49.1 = 0.49.1

• webmock 2.3.2 ~> 2.0

• yard 0.9.36 ~> 0.9