this derivation will be built:
  /nix/store/rd5k38pznks7mj0qvnwz99kpn59bc4fz-check-git-ai.drv
building '/nix/store/rd5k38pznks7mj0qvnwz99kpn59bc4fz-check-git-ai.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=22&system=aarch64-linux'
building '/nix/store/rd5k38pznks7mj0qvnwz99kpn59bc4fz-check-git-ai.drv' on farm.numtide.com:50051
check-git-ai> bld3: building rd5k38pznks7mj0qvnwz99kpn59bc4fz-check-git-ai.drv

upload niks3: ok