gistfile1.txt

# ruby-build 2.7.0 /usr/local/   
[...]
Generating RI format into /tmp/ruby-build.20201007135956.20815.OapgW7/ruby-2.7.0/.ext/rdoc...


  Files:       1141

  Classes:     1611 ( 755 undocumented)
  Modules:      326 ( 134 undocumented)
  Constants:   2433 ( 725 undocumented)
  Attributes:  1483 ( 558 undocumented)
  Methods:    12976 (3976 undocumented)

  Total:      18829 (6148 undocumented)
   67.35% documented

  Elapsed: 247.1s

generating x86_64-linux-fake.rb
x86_64-linux-fake.rb updated
./miniruby -I./lib -I. -I.ext/common  ./tool/runruby.rb --extout=.ext  -- --disable-gems -r./x86_64-linux-fake ./tool/rbinstall.rb --make="make" --dest-dir="" --extout=".ext" --mflags="" --make-flags="" --data-mode=0644 --prog-mode=0755 --installed-list .installed.list --mantype="doc" --rdoc-output=".ext/rdoc" --html-output=".ext/html"
/tmp/ruby-build.20201007135956.20815.OapgW7/ruby-2.7.0/.ext/common/openssl/buffering.rb:1: unknown encoding name: binary (ArgumentError)
	from /tmp/ruby-build.20201007135956.20815.OapgW7/ruby-2.7.0/lib/rubygems/core_ext/kernel_require.rb:72:in `require'
	from /tmp/ruby-build.20201007135956.20815.OapgW7/ruby-2.7.0/lib/rubygems/core_ext/kernel_require.rb:72:in `require'
	from /tmp/ruby-build.20201007135956.20815.OapgW7/ruby-2.7.0/.ext/common/openssl/ssl.rb:13:in `<top (required)>'
	from /tmp/ruby-build.20201007135956.20815.OapgW7/ruby-2.7.0/lib/rubygems/core_ext/kernel_require.rb:72:in `require'
	from /tmp/ruby-build.20201007135956.20815.OapgW7/ruby-2.7.0/lib/rubygems/core_ext/kernel_require.rb:72:in `require'
	from /tmp/ruby-build.20201007135956.20815.OapgW7/ruby-2.7.0/.ext/common/openssl.rb:21:in `<top (required)>'
	from /tmp/ruby-build.20201007135956.20815.OapgW7/ruby-2.7.0/lib/rubygems/core_ext/kernel_require.rb:72:in `require'
	from /tmp/ruby-build.20201007135956.20815.OapgW7/ruby-2.7.0/lib/rubygems/core_ext/kernel_require.rb:72:in `require'
	from /tmp/ruby-build.20201007135956.20815.OapgW7/ruby-2.7.0/lib/rubygems/security.rb:12:in `<top (required)>'
	from /tmp/ruby-build.20201007135956.20815.OapgW7/ruby-2.7.0/lib/rubygems/core_ext/kernel_require.rb:72:in `require'
	from /tmp/ruby-build.20201007135956.20815.OapgW7/ruby-2.7.0/lib/rubygems/core_ext/kernel_require.rb:72:in `require'
	from /tmp/ruby-build.20201007135956.20815.OapgW7/ruby-2.7.0/lib/rubygems/package.rb:44:in `<top (required)>'
	from /tmp/ruby-build.20201007135956.20815.OapgW7/ruby-2.7.0/lib/rubygems/core_ext/kernel_require.rb:72:in `require'
	from /tmp/ruby-build.20201007135956.20815.OapgW7/ruby-2.7.0/lib/rubygems/core_ext/kernel_require.rb:72:in `require'
	from /tmp/ruby-build.20201007135956.20815.OapgW7/ruby-2.7.0/lib/rubygems/installer.rb:11:in `<top (required)>'
	from /tmp/ruby-build.20201007135956.20815.OapgW7/ruby-2.7.0/lib/rubygems/core_ext/kernel_require.rb:72:in `require'
	from /tmp/ruby-build.20201007135956.20815.OapgW7/ruby-2.7.0/lib/rubygems/core_ext/kernel_require.rb:72:in `require'
	from ./tool/rbinstall.rb:708:in `<module:RbInstall>'
	from ./tool/rbinstall.rb:644:in `<main>'
uncommon.mk:373: recipe for target 'do-install-all' failed
make: *** [do-install-all] Error 1


$ head -n 1  /tmp/ruby-build.20201007135956.20815.OapgW7/ruby-2.7.0/.ext/common/openssl/buffering.rb                                                                                                                                                                          
# coding: binary