anchor.diff:  
     docker_cli = buildFromGitHub {
       version = 3;
  -    date = "2017-11-17";
  -    rev = "f6395c848c56846629cda7b136b9c15f2489eef8";
  +    date = "2017-11-21";
  +    rev = "2d0e2d22ca5f51c94b905bd81eac611bb60afed3";
       owner = "docker";
       repo = "cli";
  -    sha256 = "00ha5y2g7cvqq8l3fz3vpwlsqz5pp77gfax6hxwvv58fk6nb42n4";
  +    sha256 = "0ziid05q824xznbpkqpkh8vayfd3k5yrm4s4kijp8icdb8401py3";
       subPackages = [
         "cli/config/configfile"
         "cli/config/credentials"
  
positive.code:       open-golang
        pflag
        qingstor-sdk-go
        sftp
        ssh-agent
        swift
  
negative.code: 
      excludedPackages = "\\(test\\|benchmark\\|example\\|bridge\\)";
      meta.useUnstable = true;
      date = "2017-11-21";
    };
  
    etcd_client = etcd.override {
  