these 2 derivations will be built:
  /nix/store/pw06ri2h14pd01kkx805r54x1ak816ab-flake-inputs.drv
  /nix/store/ax43lc5d02zm4p24dlx2ig6cwankwpxg-check-flake-inputs.drv
building '/nix/store/pw06ri2h14pd01kkx805r54x1ak816ab-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/pw06ri2h14pd01kkx805r54x1ak816ab-flake-inputs.drv' on farm.numtide.com:50051
flake-inputs> mac02: building pw06ri2h14pd01kkx805r54x1ak816ab-flake-inputs.drv
building '/nix/store/ax43lc5d02zm4p24dlx2ig6cwankwpxg-check-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/ax43lc5d02zm4p24dlx2ig6cwankwpxg-check-flake-inputs.drv' on farm.numtide.com:50051
check-flake-inputs> mac02: building ax43lc5d02zm4p24dlx2ig6cwankwpxg-check-flake-inputs.drv