these 2 derivations will be built:
  /nix/store/7g5hbk875pfyym9ph85d7r3cqmq3ar66-flake-inputs.drv
  /nix/store/99vwd6ipcgng6d8s2pzfy50i3q04vrp9-check-flake-inputs.drv
building '/nix/store/7g5hbk875pfyym9ph85d7r3cqmq3ar66-flake-inputs.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=21&restart-grace=900&system=aarch64-darwin&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/7g5hbk875pfyym9ph85d7r3cqmq3ar66-flake-inputs.drv' on farm.numtide.com:50051
flake-inputs> mac02: building 7g5hbk875pfyym9ph85d7r3cqmq3ar66-flake-inputs.drv
building '/nix/store/99vwd6ipcgng6d8s2pzfy50i3q04vrp9-check-flake-inputs.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=21&restart-grace=900&system=aarch64-darwin&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/99vwd6ipcgng6d8s2pzfy50i3q04vrp9-check-flake-inputs.drv' on farm.numtide.com:50051
check-flake-inputs> mac02: building 99vwd6ipcgng6d8s2pzfy50i3q04vrp9-check-flake-inputs.drv