these 2 derivations will be built:
  /nix/store/4xnzm77z1jdfqhi55y33f7d36xsa9wzv-gitnexus-1.6.12.drv
  /nix/store/qw2r1fhx4rw9rvbnijadn7zr9yf715jr-check-gitnexus.drv