[#208626] FAILED ruby-nokogiri.git=1.8.3-alt1

[Girar Builder awaiter robot]

http://git.altlinux.org/tasks/208626/logs/events.1.1.log

2018-Jun-18 18:07:01 :: task #208626 for sisyphus started by cas:
#100 build 1.8.3-alt1 from /people/cas/packages/ruby-nokogiri.git fetched at 2018-Jun-18 16:14:13
2018-Jun-18 18:07:02 :: [aarch64] #100 ruby-nokogiri.git 1.8.3-alt1: build start
2018-Jun-18 18:07:02 :: [x86_64] #100 ruby-nokogiri.git 1.8.3-alt1: build start
2018-Jun-18 18:07:02 :: [i586] #100 ruby-nokogiri.git 1.8.3-alt1: build start
    gem install pkg-config -v "~> 1.1"
ERROR: cannot discover where libxml2 is located on your system. please make sure `pkg-config` is installed.
*** /usr/src/RPM/BUILD/nokogiri-1.8.3/ext/nokogiri/extconf.rb failed ***
2018-Jun-18 18:07:46 :: [x86_64] ruby-nokogiri.git 1.8.3-alt1: remote: build failed
2018-Jun-18 18:07:46 :: [x86_64] #100 ruby-nokogiri.git 1.8.3-alt1: build FAILED
    gem install pkg-config -v "~> 1.1"
ERROR: cannot discover where libxml2 is located on your system. please make sure `pkg-config` is installed.
*** /usr/src/RPM/BUILD/nokogiri-1.8.3/ext/nokogiri/extconf.rb failed ***
2018-Jun-18 18:07:52 :: [i586] ruby-nokogiri.git 1.8.3-alt1: remote: build failed
2018-Jun-18 18:07:52 :: [i586] #100 ruby-nokogiri.git 1.8.3-alt1: build FAILED
    gem install pkg-config -v "~> 1.1"
ERROR: cannot discover where libxml2 is located on your system. please make sure `pkg-config` is installed.
*** /usr/src/RPM/BUILD/nokogiri-1.8.3/ext/nokogiri/extconf.rb failed ***
2018-Jun-18 18:09:01 :: [aarch64] ruby-nokogiri.git 1.8.3-alt1: remote: build failed
2018-Jun-18 18:09:01 :: [aarch64] #100 ruby-nokogiri.git 1.8.3-alt1: build FAILED
2018-Jun-18 18:07:46 :: [x86_64] build FAILED
2018-Jun-18 18:07:52 :: [i586] build FAILED
2018-Jun-18 18:09:01 :: [aarch64] build FAILED
2018-Jun-18 18:09:01 :: task #208626 for sisyphus FAILED