=> Bootstrap dependency digest>=20010302: found digest-20190127
===> Building for ruby25-cucumber-core-4.0.0
=> Removing backup files of patch before build
WARNING:  pessimistic dependency on cucumber-tag_expressions (~> 1.1.0) may be overly strict
  if cucumber-tag_expressions is semantically versioned, use:
    add_runtime_dependency 'cucumber-tag_expressions', '~> 1.1', '>= 1.1.0'
WARNING:  pessimistic dependency on bundler (~> 1.16.0, development) may be overly strict
  if bundler is semantically versioned, use:
    add_development_dependency 'bundler', '~> 1.16', '>= 1.16.0'
WARNING:  pessimistic dependency on kramdown (~> 1.4.2, development) may be overly strict
  if kramdown is semantically versioned, use:
    add_development_dependency 'kramdown', '~> 1.4', '>= 1.4.2'
WARNING:  See http://guides.rubygems.org/specification-reference/ for help
  Successfully built RubyGem
  Name: cucumber-core
  Version: 4.0.0
  File: cucumber-core-4.0.0.gem