these 2 derivations will be built:
  /nix/store/hscmfr4p1r34rc0mlag7c8gpysdjr0i4-flake-inputs.drv
  /nix/store/za0kp02la4rp7r7fzfrya82y013kvzsh-check-flake-inputs.drv
building '/nix/store/hscmfr4p1r34rc0mlag7c8gpysdjr0i4-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/hscmfr4p1r34rc0mlag7c8gpysdjr0i4-flake-inputs.drv' on farm.numtide.com:50051
flake-inputs> mac02: building hscmfr4p1r34rc0mlag7c8gpysdjr0i4-flake-inputs.drv
building '/nix/store/za0kp02la4rp7r7fzfrya82y013kvzsh-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/za0kp02la4rp7r7fzfrya82y013kvzsh-check-flake-inputs.drv' on farm.numtide.com:50051
check-flake-inputs> mac02: building za0kp02la4rp7r7fzfrya82y013kvzsh-check-flake-inputs.drv