Ignoring atk-3.5.1 because its extensions are not built. Try: gem pristine atk --version 3.5.1
Ignoring cairo-gobject-3.5.1 because its extensions are not built. Try: gem pristine cairo-gobject --version 3.5.1
Ignoring gdk3-3.5.1 because its extensions are not built. Try: gem pristine gdk3 --version 3.5.1
Ignoring gdk_pixbuf2-3.5.1 because its extensions are not built. Try: gem pristine gdk_pixbuf2 --version 3.5.1
<internal:/usr/lib/ruby/rubygems/core_ext/kernel_require.rb>:85:in `require': cannot load such file -- /usr/bin/../lib/ascii85 (LoadError)
	from <internal:/usr/lib/ruby/rubygems/core_ext/kernel_require.rb>:85:in `require'
	from /usr/bin/ascii85:11:in `<main>'