these 2 derivations will be built:
  /nix/store/8iajpxfa0m03hbc8p8i1jlgazwdgflm3-flake-inputs.drv
  /nix/store/p15n6ia8pi72hz16qss74nx74p4qgrr1-check-flake-inputs.drv
building '/nix/store/8iajpxfa0m03hbc8p8i1jlgazwdgflm3-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/8iajpxfa0m03hbc8p8i1jlgazwdgflm3-flake-inputs.drv' on farm.numtide.com:50051
flake-inputs> mac02: building 8iajpxfa0m03hbc8p8i1jlgazwdgflm3-flake-inputs.drv
building '/nix/store/p15n6ia8pi72hz16qss74nx74p4qgrr1-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/p15n6ia8pi72hz16qss74nx74p4qgrr1-check-flake-inputs.drv' on farm.numtide.com:50051
check-flake-inputs> mac02: building p15n6ia8pi72hz16qss74nx74p4qgrr1-check-flake-inputs.drv