these 3 derivations will be built:
  /nix/store/dascnwa3iv2x6hxjp6l55qykb2z0zh5y-menu.drv
  /nix/store/p6zpqnnz2075i5sq1pcamfz3rhramwdp-devshell-dir.drv
  /nix/store/w1hxqyg3q2hry8p7gkqhx37zv4w41d8x-devshell.drv
these 2 paths will be fetched (42.1 MiB download, 109.7 MiB unpacked):
  /nix/store/mjvsrs7k1x8gf154fany2qi7af5pj414-cfssl-1.6.5
  /nix/store/p6vsb84y2aw6n895jp1k52dz7f0czvk5-pebble-2.6.0