Source: ruby-json Version: 2.1.0+dfsg-1 Severity: serious Some recent change in unstable makes ruby-json FTBFS:
https://tests.reproducible-builds.org/debian/history/ruby-json.html https://tests.reproducible-builds.org/debian/rb-pkg/unstable/amd64/ruby-json.html ... dh_ruby --clean jruby -S rake clean GNU Make 4.1 Built for x86_64-pc-linux-gnu Copyright (C) 1988-2014 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. /usr/share/jruby/lib/ruby/stdlib/rubygems/core_ext/kernel_require.rb:55:in `require': It seems your ruby installation is missing psych (for YAML output). To eliminate this warning, please install libyaml and reinstall your ruby. rake aborted! LoadError: no such file to load -- psych /build/1st/ruby-json-2.1.0+dfsg/Rakefile:108:in `(root)' (See full trace by running task with --trace) debian/rules:16: recipe for target 'override_dh_auto_clean' failed make[1]: *** [override_dh_auto_clean] Error 1