=> Bootstrap dependency digest>=20010302: found digest-20190127
===> Building for ruby24-ffi-1.12.2nb1
=> Removing backup files of patch before build
WARNING:  pessimistic dependency on rspec (~> 2.14.1, development) may be overly strict
  if rspec is semantically versioned, use:
    add_development_dependency 'rspec', '~> 2.14', '>= 2.14.1'
WARNING:  See http://guides.rubygems.org/specification-reference/ for help
  Successfully built RubyGem
  Name: ffi
  Version: 1.12.2
  File: ffi-1.12.2.gem