anchor.diff:    tree }:
   
   let
  -  version = "3.14.2";
  +  version = "3.14.4";
   
     # Dependencies should match the ones in:
     # https://github.com/erlang/rebar3/blob/${version}/rebar.lock
  
positive.code:     cp --no-preserve=mode -R ${providers} _checkouts/providers
      cp --no-preserve=mode -R ${relx} _checkouts/relx
      cp --no-preserve=mode -R ${ssl_verify_fun} _checkouts/ssl_verify_fun
  
      cp --no-preserve=mode -R ${hex_core} _checkouts/hex_core
  
      # Bootstrap script expects the dependencies in _build/default/lib
      # TODO: Make it accept checkouts?
  
negative.code:   bbmustache = fetchHex {
      pkg = "bbmustache";
      version = "1.10.0";
      sha256 = "1vp27jqnq65a8iqp7j4z8nw9ad29dhky5agmg8aj75dvshzzmvs3";
    };
    certifi = fetchHex {
      pkg = "certifi";
      version = "2.5.3";
      sha256 = "040w1scglvqhcvc1ifdnlcyrbwr0smi00w4xi8h03c99775nllgd";
    };
    cf = fetchHex {
      pkg = "cf";
      version = "0.3.1";
      sha256 = "0wknz4xkqkhgvlx4vx5619p8m65v7g87lfgsvfy04jrsgm28spii";
    };
    cth_readable = fetchHex {
      pkg = "cth_readable";
      version = "1.5.0";
      sha256 = "0z58b6frqdnhyzrmbdf6x78l3izbbh5z5i3am8hqc253r7xwv0dx";
    };
    erlware_commons = fetchHex {
      pkg = "erlware_commons";
      version = "1.4.0";
      sha256 = "1rp2vkgzqm6sax7fc13rh9x6qzxsgg718dnv7l0kmarvyifcyphq";
    };
    eunit_formatters = fetchHex {
      pkg = "eunit_formatters";
  