these 3 derivations will be built:
  /nix/store/9wyhn27wyvgqqf9hb86dz3cjb1apn3l7-source.drv
  /nix/store/b829i3as9p162q1905v1g406rh32vkgs-crush-0.91.2-go-modules.drv
  /nix/store/d05fn3vwxi3l41l2vl21vq7rsgqzx1zw-crush-0.91.2.drv