these 4 derivations will be built:
  /nix/store/kabyf6z6pgb9pzhb772yhbzvjiif0ldr-source.drv
  /nix/store/yrmc1mz5vh177jl5c7fwh8zash2pymxi-magpie-0.1.3226-go-modules.drv
  /nix/store/rzrw1gkgcb3pkqbcxc57bp33yl5v1kmj-magpie-0.1.3226.drv
  /nix/store/b1h88gr39dvm37a0d0aafh7a0sn3vz98-check-magpie.drv