these 3 derivations will be built:
  /nix/store/xmpbji7z68jayxwc7s0a5zkc94h4cdxy-ctx-2.2.4-vendor.drv
  /nix/store/daiysdh2rknm097xbq4rx5mfypdwdns8-ctx-2.2.4.drv
  /nix/store/wl0j9i7ld6gmzhj5zq7y83wmvkf42mxy-check-ctx.drv