these 4 derivations will be built:
  /nix/store/wglgyw5l0749qwy8fmkrgkmmjhxnmyqp-source.drv
  /nix/store/0qs0gvfnwh6a59y109rlcfmsqlgkjsa4-magpie-0.1.485-go-modules.drv
  /nix/store/wn6k20mmhlrimvkipc4701k3vvzx3kjg-magpie-0.1.485.drv
  /nix/store/da7bdcqbrfnillljk3v4ysi57id8sc8s-check-magpie.drv