these 2 derivations will be built:
  /nix/store/3kshin2hvlwnnka7ha7200i6di5gy4sm-flake-inputs.drv
  /nix/store/3409g5bk2gr9ya6k9f07cjrzl9x0824h-check-flake-inputs.drv
building '/nix/store/3kshin2hvlwnnka7ha7200i6di5gy4sm-flake-inputs.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=23&system=aarch64-linux&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/3kshin2hvlwnnka7ha7200i6di5gy4sm-flake-inputs.drv' on farm.numtide.com:50051
flake-inputs> elastic-arm-9a50e053: building 3kshin2hvlwnnka7ha7200i6di5gy4sm-flake-inputs.drv
building '/nix/store/3409g5bk2gr9ya6k9f07cjrzl9x0824h-check-flake-inputs.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=23&system=aarch64-linux&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/3409g5bk2gr9ya6k9f07cjrzl9x0824h-check-flake-inputs.drv' on farm.numtide.com:50051
check-flake-inputs> elastic-arm-9a50e053: building 3409g5bk2gr9ya6k9f07cjrzl9x0824h-check-flake-inputs.drv