[Reproducible-builds] Bug#794140: FTBFS: test-yaml-parser: found unexpected ':' while scanning a plain scalar at line 80 column 21 (Psych::SyntaxError)

[Chris West (Faux)]

Source: kwalify
Version: 0.7.2-2
Severity: serious
Tags: sid stretch
Justification: fails to build from source
User: reproducible-builds at lists.alioth.debian.org
Usertags: ftbfs

Dear Maintainer,

The package fails to build:

RUBYLIB=/tmp/buildd/kwalify-0.7.2/debian/kwalify/usr/lib/ruby/vendor_ruby:. ruby2.1 -ryaml -e YAML.load_file\(\"debian/ruby-test-files.yaml\"\).each\ \{\ \|f\|\ require\ f\ \}
/usr/lib/ruby/2.1.0/psych.rb:373:in `parse': (<unknown>): found unexpected ':' while scanning a plain scalar at line 80 column 21 (Psych::SyntaxError)
	from /usr/lib/ruby/2.1.0/psych.rb:373:in `parse_stream'
	from /usr/lib/ruby/2.1.0/psych.rb:456:in `load_stream'
	from /usr/lib/ruby/2.1.0/psych/deprecated.rb:29:in `load_documents'
	from /tmp/buildd/kwalify-0.7.2/debian/kwalify/usr/lib/ruby/vendor_ruby/kwalify/util/testcase-helper.rb:36:in `load_yaml_documents'
	from /tmp/buildd/kwalify-0.7.2/debian/kwalify/usr/lib/ruby/vendor_ruby/kwalify/util/testcase-helper.rb:62:in `load_yaml_testdata'
	from /tmp/buildd/kwalify-0.7.2/test/test-yaml-parser.rb:13:in `<class:ParserTest>'
	from /tmp/buildd/kwalify-0.7.2/test/test-yaml-parser.rb:10:in `<top (required)>'
	from /usr/lib/ruby/2.1.0/rubygems/core_ext/kernel_require.rb:55:in `require'
	from /usr/lib/ruby/2.1.0/rubygems/core_ext/kernel_require.rb:55:in `require'
	from /usr/lib/ruby/vendor_ruby/test/unit/collector/load.rb:105:in `block in collect_file'
	from /usr/lib/ruby/vendor_ruby/test/unit/collector/load.rb:127:in `add_load_path'
	from /usr/lib/ruby/vendor_ruby/test/unit/collector/load.rb:103:in `collect_file'
	from /usr/lib/ruby/vendor_ruby/test/unit/collector/load.rb:78:in `block in collect_recursive'
	from /usr/lib/ruby/vendor_ruby/test/unit/collector/load.rb:76:in `each'
	from /usr/lib/ruby/vendor_ruby/test/unit/collector/load.rb:76:in `collect_recursive'
	from /usr/lib/ruby/vendor_ruby/test/unit/collector/load.rb:83:in `block in collect_recursive'
	from /usr/lib/ruby/vendor_ruby/test/unit/collector/load.rb:81:in `each'
	from /usr/lib/ruby/vendor_ruby/test/unit/collector/load.rb:81:in `collect_recursive'
	from /usr/lib/ruby/vendor_ruby/test/unit/collector/load.rb:37:in `block (2 levels) in collect'
	from /usr/lib/ruby/vendor_ruby/test/unit/collector/load.rb:34:in `each'
	from /usr/lib/ruby/vendor_ruby/test/unit/collector/load.rb:34:in `block in collect'
	from /usr/lib/ruby/vendor_ruby/test/unit/collector/load.rb:122:in `add_load_path'
	from /usr/lib/ruby/vendor_ruby/test/unit/collector/load.rb:30:in `collect'
	from /usr/lib/ruby/vendor_ruby/test/unit/autorunner.rb:98:in `block in <class:AutoRunner>'
	from /usr/lib/ruby/vendor_ruby/test/unit/autorunner.rb:402:in `[]'
	from /usr/lib/ruby/vendor_ruby/test/unit/autorunner.rb:402:in `run'
	from /usr/lib/ruby/vendor_ruby/test/unit/autorunner.rb:59:in `run'
	from /usr/lib/ruby/vendor_ruby/test/unit.rb:502:in `block (2 levels) in <top (required)>'
ERROR: Test "ruby2.1" failed. Exiting.

Full build log:
https://reproducible.debian.net/rb-pkg/unstable/amd64/kwalify.html

-- System Information:
Debian Release: stretch/sid
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: amd64 (x86_64)

Kernel: Linux 3.19.0-23-generic (SMP w/8 CPU cores)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)