these 4 derivations will be built:
  /nix/store/q8ik12608g6722vd3pchbac9kn3k2if1-rtk-0.50.0-vendor-staging.drv
  /nix/store/0kh4fxrg0azkch8h8zk4h2kfmf7y61gy-rtk-0.50.0-vendor.drv
  /nix/store/ak9i1la0s9apnjg3f6awd64h0jp7bdij-rtk-0.50.0.drv
  /nix/store/0hsvhasdd2zf7wlfjfyxf78770kmr1gr-check-rtk.drv
this path will be fetched (0.0 KiB download, 6.4 MiB unpacked):
  /nix/store/4mkdy9dwqdkagjqilp3kyrcmydr1xply-source