these 3 derivations will be built:
  /nix/store/pd4fdj5dih8r2j49rj5mxhi9y15bahk4-ctx-1.4.12-vendor-staging.drv
  /nix/store/5lrnw5cyd8ncn384phklxd74ngc2qx58-ctx-1.4.12-vendor.drv
  /nix/store/141zdpv3rms1p30g9d1k26cc0kh112mb-ctx-1.4.12.drv