Semi-automatic update generated by https://github.com/ryantm/nix-update tools. These checks were done:
- built on NixOS
- Warning: no binary found that responded to help or version flags. (This warning appears even if the package isn't expected to have binaries.)
- found 0.6.2 with grep in /nix/store/cfm3y6c18a0ys0ndbv4g4zixay7zh331-libyaml-cpp-0.6.2
- found 0.6.2 in filename of file in /nix/store/cfm3y6c18a0ys0ndbv4g4zixay7zh331-libyaml-cpp-0.6.2
- directory tree listing: https://gist.github.com/54fa524e8988d3fbe9920824135802a0
