current directory: /home/runner/work/rack/rack/vendor/bundle/ruby/4.0.0/gems/psych-5.3.1/ext/psych /opt/hostedtoolcache/Ruby/4.0.3/x64/bin/ruby extconf.rb checking for pkg-config for yaml-0.1… [“ ”, “”, “-lyaml”] creating Makefile

current directory: /home/runner/work/rack/rack/vendor/bundle/ruby/4.0.0/gems/psych-5.3.1/ext/psych make -j4 DESTDIR\= sitearchdir\=./.gem.20260423-2339-vjpd3v sitelibdir\=./.gem.20260423-2339-vjpd3v clean cd libyaml && make clean /bin/sh: 1: cd: can’t cd to libyaml make: [Makefile:287: clean-so] Error 2 (ignored)

current directory: /home/runner/work/rack/rack/vendor/bundle/ruby/4.0.0/gems/psych-5.3.1/ext/psych make -j4 DESTDIR\= sitearchdir\=./.gem.20260423-2339-vjpd3v sitelibdir\=./.gem.20260423-2339-vjpd3v compiling psych.c compiling psych_emitter.c compiling psych_parser.c compiling psych_to_ruby.c compiling psych_yaml_tree.c linking shared-object psych.so

current directory: /home/runner/work/rack/rack/vendor/bundle/ruby/4.0.0/gems/psych-5.3.1/ext/psych make -j4 DESTDIR\= sitearchdir\=./.gem.20260423-2339-vjpd3v sitelibdir\=./.gem.20260423-2339-vjpd3v install /usr/bin/install -c -m 0755 psych.so ./.gem.20260423-2339-vjpd3v

current directory: /home/runner/work/rack/rack/vendor/bundle/ruby/4.0.0/gems/psych-5.3.1/ext/psych make DESTDIR\= sitearchdir\=./.gem.20260423-2339-vjpd3v sitelibdir\=./.gem.20260423-2339-vjpd3v clean cd libyaml && make clean /bin/sh: 1: cd: can’t cd to libyaml make: [Makefile:287: clean-so] Error 2 (ignored)