these 2 derivations will be built:
  /nix/store/qfg8qxlfznf8r3wjx1fbbjh0zljml8j3-happy-coder-1.2.6.drv
  /nix/store/czrq4jnjad50qsgq0d75wn8jdiy53n2i-check-happy-coder.drv
this path will be fetched (8.4 MiB download, 86.4 MiB unpacked):
  /nix/store/5a54lynbjfgn4bc0yrspqfyfxmzinl3r-difftastic-0.72.0
warning: ignoring the client-specified setting 'store', because it is a restricted setting and you are not a trusted user