these 3 derivations will be built:
  /nix/store/w53qr40k9f8gmazz2hclbpcfsrbknrqs-ctx-2.2.3-vendor.drv
  /nix/store/963j0js81d289dchsard2ap544g92six-ctx-2.2.3.drv
  /nix/store/5dcd8rp3k3sb1dv86c2xfyrdcp1y2lrc-check-ctx.drv