these 3 derivations will be built:
  /nix/store/g0las62dd5aacg4l9mfxjhwgr81fk0xx-freebuff-linux-arm64.tar.gz.drv
  /nix/store/rwzfmxylwl8gbqmcg3j7mycm2pv4mvwg-freebuff-0.2.6.drv
  /nix/store/jxlmh2hksk739zp1wp65v2zmg0q07rzc-check-freebuff.drv