these 2 derivations will be built:
  /nix/store/1zph0jhmpklc4x7dch9m66isi1fhp3mj-flake-inputs.drv
  /nix/store/pbrhrc5y9v405ysvdpdqwxni05782brc-check-flake-inputs.drv
building '/nix/store/1zph0jhmpklc4x7dch9m66isi1fhp3mj-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/1zph0jhmpklc4x7dch9m66isi1fhp3mj-flake-inputs.drv' on farm.numtide.com:50051
flake-inputs> elastic-arm-a30baf54: building 1zph0jhmpklc4x7dch9m66isi1fhp3mj-flake-inputs.drv
building '/nix/store/pbrhrc5y9v405ysvdpdqwxni05782brc-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/pbrhrc5y9v405ysvdpdqwxni05782brc-check-flake-inputs.drv' on farm.numtide.com:50051
check-flake-inputs> elastic-arm-a30baf54: building pbrhrc5y9v405ysvdpdqwxni05782brc-check-flake-inputs.drv