these 2 derivations will be built:
  /nix/store/0qj016v2n6bsn1yl53rikqgbn80dfiw3-flake-inputs.drv
  /nix/store/47r6ycl90nr4nh460wr5k2914xp6f1dh-check-flake-inputs.drv
building '/nix/store/0qj016v2n6bsn1yl53rikqgbn80dfiw3-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/0qj016v2n6bsn1yl53rikqgbn80dfiw3-flake-inputs.drv' on farm.numtide.com:50051
flake-inputs> mac02: building 0qj016v2n6bsn1yl53rikqgbn80dfiw3-flake-inputs.drv
building '/nix/store/47r6ycl90nr4nh460wr5k2914xp6f1dh-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/47r6ycl90nr4nh460wr5k2914xp6f1dh-check-flake-inputs.drv' on farm.numtide.com:50051
check-flake-inputs> mac02: building 47r6ycl90nr4nh460wr5k2914xp6f1dh-check-flake-inputs.drv