these 2 derivations will be built:
  /nix/store/5mkbsgksiqvdwza6harw64zcyaasq8zs-test-drv-canary-actual.drv
  /nix/store/jifdc883qffsz3fjzqqwsskm5xn8wm49-test-drv-canary.drv
building '/nix/store/5mkbsgksiqvdwza6harw64zcyaasq8zs-test-drv-canary-actual.drv'
building '/nix/store/jifdc883qffsz3fjzqqwsskm5xn8wm49-test-drv-canary.drv'

upload niks3: ok