these 2 derivations will be built:
  /nix/store/zh9aqf9gwzcma49g7hznbn34g7gdhgn3-test-drv-canary-actual.drv
  /nix/store/3pmlam3ha5xblfkvpkkzjqznzrn0g33z-test-drv-canary.drv
building '/nix/store/zh9aqf9gwzcma49g7hznbn34g7gdhgn3-test-drv-canary-actual.drv'
building '/nix/store/3pmlam3ha5xblfkvpkkzjqznzrn0g33z-test-drv-canary.drv'

upload niks3: ok