these 2 derivations will be built:
  /nix/store/qqx966qz074s5a85js5akch40kcawcbg-flake-inputs.drv
  /nix/store/d6ggn4ddamk7m5v0mprl4ka0njisd3x7-check-flake-inputs.drv
building '/nix/store/qqx966qz074s5a85js5akch40kcawcbg-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/qqx966qz074s5a85js5akch40kcawcbg-flake-inputs.drv' on farm.numtide.com:50051
flake-inputs> elastic-arm-23d67df9: building qqx966qz074s5a85js5akch40kcawcbg-flake-inputs.drv
building '/nix/store/d6ggn4ddamk7m5v0mprl4ka0njisd3x7-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/d6ggn4ddamk7m5v0mprl4ka0njisd3x7-check-flake-inputs.drv' on farm.numtide.com:50051
check-flake-inputs> elastic-arm-23d67df9: building d6ggn4ddamk7m5v0mprl4ka0njisd3x7-check-flake-inputs.drv