these 2 derivations will be built:
  /nix/store/3hn171lkrw5f2qgh24c3v9n7byfyllb4-flake-inputs.drv
  /nix/store/hirdpwp53lbc452g692ncq2jlxawmfql-check-flake-inputs.drv
building '/nix/store/3hn171lkrw5f2qgh24c3v9n7byfyllb4-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/3hn171lkrw5f2qgh24c3v9n7byfyllb4-flake-inputs.drv' on farm.numtide.com:50051
flake-inputs> elastic-arm-23d67df9: building 3hn171lkrw5f2qgh24c3v9n7byfyllb4-flake-inputs.drv
building '/nix/store/hirdpwp53lbc452g692ncq2jlxawmfql-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/hirdpwp53lbc452g692ncq2jlxawmfql-check-flake-inputs.drv' on farm.numtide.com:50051
check-flake-inputs> elastic-arm-23d67df9: building hirdpwp53lbc452g692ncq2jlxawmfql-check-flake-inputs.drv