these 2 derivations will be built:
  /nix/store/xb74hsnwifz6ax1m3rh9w6v3wv10acmi-flake-inputs.drv
  /nix/store/3kilh2ka2ymzmhhnyxy9flmqilkr87v9-check-flake-inputs.drv
building '/nix/store/xb74hsnwifz6ax1m3rh9w6v3wv10acmi-flake-inputs.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=22&system=aarch64-darwin&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/xb74hsnwifz6ax1m3rh9w6v3wv10acmi-flake-inputs.drv' on farm.numtide.com:50051
flake-inputs> mac02: building xb74hsnwifz6ax1m3rh9w6v3wv10acmi-flake-inputs.drv
building '/nix/store/3kilh2ka2ymzmhhnyxy9flmqilkr87v9-check-flake-inputs.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=21&system=aarch64-darwin&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/3kilh2ka2ymzmhhnyxy9flmqilkr87v9-check-flake-inputs.drv' on farm.numtide.com:50051
check-flake-inputs> mac02: building 3kilh2ka2ymzmhhnyxy9flmqilkr87v9-check-flake-inputs.drv