these 2 derivations will be built:
  /nix/store/868zwjsm6a9mms5ymkip76yw915pxnld-flake-inputs.drv
  /nix/store/jlh64p1v720vj2a49i5vag4gh3hknzs8-check-flake-inputs.drv
building '/nix/store/868zwjsm6a9mms5ymkip76yw915pxnld-flake-inputs.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=22&system=aarch64-linux&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/868zwjsm6a9mms5ymkip76yw915pxnld-flake-inputs.drv' on farm.numtide.com:50051
flake-inputs> elastic-arm-26b08a17: building 868zwjsm6a9mms5ymkip76yw915pxnld-flake-inputs.drv
building '/nix/store/jlh64p1v720vj2a49i5vag4gh3hknzs8-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/jlh64p1v720vj2a49i5vag4gh3hknzs8-check-flake-inputs.drv' on farm.numtide.com:50051
check-flake-inputs> elastic-arm-26b08a17: building jlh64p1v720vj2a49i5vag4gh3hknzs8-check-flake-inputs.drv