these 2 derivations will be built:
  /nix/store/3zr7kgr0ncd901r977w3r2354ds1i2wn-flake-inputs.drv
  /nix/store/zs9pci12ff1dh8xxw4115x6ymkvixzks-check-flake-inputs.drv
building '/nix/store/3zr7kgr0ncd901r977w3r2354ds1i2wn-flake-inputs.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=23&system=aarch64-darwin&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/3zr7kgr0ncd901r977w3r2354ds1i2wn-flake-inputs.drv' on farm.numtide.com:50051
flake-inputs> mac02: building 3zr7kgr0ncd901r977w3r2354ds1i2wn-flake-inputs.drv
building '/nix/store/zs9pci12ff1dh8xxw4115x6ymkvixzks-check-flake-inputs.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=23&system=aarch64-darwin&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/zs9pci12ff1dh8xxw4115x6ymkvixzks-check-flake-inputs.drv' on farm.numtide.com:50051
check-flake-inputs> mac02: building zs9pci12ff1dh8xxw4115x6ymkvixzks-check-flake-inputs.drv