=> Bootstrap dependency digest>=20010302: found digest-20190127
===> Building for ruby27-racc-1.4.16
=> Removing backup files of patch before build
WARNING:  bin/racc is not executable
WARNING:  bin/racc2y is not executable
WARNING:  bin/y2racc is not executable
WARNING:  See http://guides.rubygems.org/specification-reference/ for help
  Successfully built RubyGem
  Name: racc
  Version: 1.4.16
  File: racc-1.4.16.gem