these 2 derivations will be built:
  /nix/store/k60zzip9g5r8zm4671kcdky1d9hgs6a2-flake-inputs.drv
  /nix/store/q90w7pjvl83vl0jrqdlbi4zw995mba3s-check-flake-inputs.drv
building '/nix/store/k60zzip9g5r8zm4671kcdky1d9hgs6a2-flake-inputs.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=20&system=aarch64-linux&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/k60zzip9g5r8zm4671kcdky1d9hgs6a2-flake-inputs.drv' on farm.numtide.com:50051
flake-inputs> elastic-arm-263f833f: building k60zzip9g5r8zm4671kcdky1d9hgs6a2-flake-inputs.drv
building '/nix/store/q90w7pjvl83vl0jrqdlbi4zw995mba3s-check-flake-inputs.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=20&system=aarch64-linux&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/q90w7pjvl83vl0jrqdlbi4zw995mba3s-check-flake-inputs.drv' on farm.numtide.com:50051
check-flake-inputs> elastic-arm-263f833f: building q90w7pjvl83vl0jrqdlbi4zw995mba3s-check-flake-inputs.drv