我的机器上的多个主机上一直出现此错误，例如:require'open-uri'open('https://google.com').readNet::OpenTimeout:executionexpiredfrom/usr/local/opt/rbenv/versions/2.4.0/lib/ruby/2.4.0/net/http.rb:904:in`initialize'from/usr/local/opt/rbenv/versions/2.4.0/lib/ruby/2.4.0/net/http.rb:904:in`open'from/usr/local/opt/rbenv/vers