this derivation will be built:
  /nix/store/8jqjjs4whik4sj3imc0b0kb0ss08d5ad-check-codex.drv
building '/nix/store/8jqjjs4whik4sj3imc0b0kb0ss08d5ad-check-codex.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-darwin'
building '/nix/store/8jqjjs4whik4sj3imc0b0kb0ss08d5ad-check-codex.drv' on farm.numtide.com:50051
check-codex> mac02: building 8jqjjs4whik4sj3imc0b0kb0ss08d5ad-check-codex.drv

upload niks3: ok