these 2 derivations will be built:
  /nix/store/g850f27amisc72ffyqwzm0v2gsaxv5x3-claudebox.drv
  /nix/store/52mz3vx6gmpjjy6jsr7sznibbpp9nlqx-check-claudebox.drv
building '/nix/store/g850f27amisc72ffyqwzm0v2gsaxv5x3-claudebox.drv'
building '/nix/store/52mz3vx6gmpjjy6jsr7sznibbpp9nlqx-check-claudebox.drv'

upload niks3: ok