this derivation will be built:
  /nix/store/b259jln750qf2v630giw4gkfc2zk3sk6-flake-inputs.drv
building '/nix/store/b259jln750qf2v630giw4gkfc2zk3sk6-flake-inputs.drv' on 'grpc://farm.numtide.com:50051?client-cert=/run/secrets/vars/per-machine/bld1/nix-farm-ci/crt&client-key=/run/secrets/vars/per-machine/bld1/nix-farm-ci/key&connect-timeout=21&system=aarch64-linux'
building '/nix/store/b259jln750qf2v630giw4gkfc2zk3sk6-flake-inputs.drv' on farm.numtide.com:50051
flake-inputs> bld4: building b259jln750qf2v630giw4gkfc2zk3sk6-flake-inputs.drv

upload niks3: ok