anchor.diff:  
     tagbar = buildVimPluginFrom2Nix {
       pname = "tagbar";
  -    version = "2021-06-24";
  +    version = "2021-07-27";
       src = fetchFromGitHub {
         owner = "preservim";
         repo = "tagbar";
  -      rev = "2da3443f5fb78aa0b9a60bb5b2926d72df734e14";
  -      sha256 = "0xihnfp1jv3ixhinqvnfig1v5k8swf3vcqjavspchd94lnb4b2h4";
  +      rev = "a0a5714910d29ac3bfe91a2529a9c8cb28de77cc";
  +      sha256 = "0y31fi2103ggv5s2lg9wqxvc0xghh3i3iwhzrwxylvimajcv4s0f";
       };
       meta.homepage = "https://github.com/preservim/tagbar/";
     };
  
positive.code: 
    rust-tools-nvim = buildVimPluginFrom2Nix {
      pname = "rust-tools-nvim";
      version = "2021-07-24";
      src = fetchFromGitHub {
        owner = "simrat39";
        repo = "rust-tools.nvim";
        rev = "27e1555146331f42ebb07fb7ba0a196b75e03dde";
        sha256 = "13dr30nifxrkjj7rf8dyv9p942dinjcpiy24sbfwni2ibmyf2p52";
      };
      meta.homepage = "https://github.com/simrat39/rust-tools.nvim/";
    };
  
negative.code: 
    luasnip = buildVimPluginFrom2Nix {
      pname = "luasnip";
      version = "2021-07-25";
      src = fetchFromGitHub {
        owner = "l3mon4d3";
        repo = "luasnip";
        rev = "631a1551c9e0d983e9545d37c79fb024f4680a83";
        sha256 = "0jiq37bfn8wpbrk62xrknglfkh3hbsx325crgg7amsk0bkhi8nav";
      };
      meta.homepage = "https://github.com/l3mon4d3/luasnip/";
    };
  