these 2 derivations will be built:
  /nix/store/7iwcfii94v5wwvg9qavrim58dbwd7k5f-claudebox.drv
  /nix/store/wlp0xldrjg21hf8k9f4q6vrwdvvaqjc2-check-claudebox.drv
building '/nix/store/7iwcfii94v5wwvg9qavrim58dbwd7k5f-claudebox.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=22&restart-grace=900&system=aarch64-darwin&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/7iwcfii94v5wwvg9qavrim58dbwd7k5f-claudebox.drv' on farm.numtide.com:50051
claudebox> mac02: building 7iwcfii94v5wwvg9qavrim58dbwd7k5f-claudebox.drv
building '/nix/store/wlp0xldrjg21hf8k9f4q6vrwdvvaqjc2-check-claudebox.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=22&restart-grace=900&system=aarch64-darwin&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/wlp0xldrjg21hf8k9f4q6vrwdvvaqjc2-check-claudebox.drv' on farm.numtide.com:50051
check-claudebox> mac02: building wlp0xldrjg21hf8k9f4q6vrwdvvaqjc2-check-claudebox.drv