these 2 derivations will be built:
  /nix/store/mcd9mrz1rzazydra8lszy1a1pgcj33xr-flake-inputs.drv
  /nix/store/sa91jx22p6ywd2m3jlsf7nlp2x0rwfms-check-flake-inputs.drv
building '/nix/store/mcd9mrz1rzazydra8lszy1a1pgcj33xr-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/mcd9mrz1rzazydra8lszy1a1pgcj33xr-flake-inputs.drv' on farm.numtide.com:50051
flake-inputs> elastic-arm-97f508dd: building mcd9mrz1rzazydra8lszy1a1pgcj33xr-flake-inputs.drv
building '/nix/store/sa91jx22p6ywd2m3jlsf7nlp2x0rwfms-check-flake-inputs.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=21&system=aarch64-linux&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/sa91jx22p6ywd2m3jlsf7nlp2x0rwfms-check-flake-inputs.drv' on farm.numtide.com:50051
check-flake-inputs> elastic-arm-97f508dd: building sa91jx22p6ywd2m3jlsf7nlp2x0rwfms-check-flake-inputs.drv