these 3 derivations will be built:
  /nix/store/f3w0mk7rbz2dhbjsiabh88nwdx77yq6h-ctx-2.2.4-vendor.drv
  /nix/store/vsp184nw84pvabwhw3p6mknkyvxd8a3c-ctx-2.2.4.drv
  /nix/store/vy2r78y3srxksk17mwkvbz6r89x0np9h-check-ctx.drv