these 2 derivations will be built:
  /nix/store/4w80lp5g44ls56in64hxwi1cn3dvs1sq-flake-inputs.drv
  /nix/store/3ldyq127xv15qmilkp1l97y55sffrp9f-check-flake-inputs.drv
building '/nix/store/4w80lp5g44ls56in64hxwi1cn3dvs1sq-flake-inputs.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=20&system=aarch64-darwin&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/4w80lp5g44ls56in64hxwi1cn3dvs1sq-flake-inputs.drv' on farm.numtide.com:50051
flake-inputs> mac02: building 4w80lp5g44ls56in64hxwi1cn3dvs1sq-flake-inputs.drv
building '/nix/store/3ldyq127xv15qmilkp1l97y55sffrp9f-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/3ldyq127xv15qmilkp1l97y55sffrp9f-check-flake-inputs.drv' on farm.numtide.com:50051
check-flake-inputs> mac02: building 3ldyq127xv15qmilkp1l97y55sffrp9f-check-flake-inputs.drv