these 2 derivations will be built:
  /nix/store/xxx2k77g78ql9q9na4lkx97s6wicv10a-flake-inputs.drv
  /nix/store/a9nvr2nfr02ya444107g9k9xcq34pfvj-check-flake-inputs.drv
building '/nix/store/xxx2k77g78ql9q9na4lkx97s6wicv10a-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/xxx2k77g78ql9q9na4lkx97s6wicv10a-flake-inputs.drv' on farm.numtide.com:50051
flake-inputs> elastic-arm-26b08a17: building xxx2k77g78ql9q9na4lkx97s6wicv10a-flake-inputs.drv
building '/nix/store/a9nvr2nfr02ya444107g9k9xcq34pfvj-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/a9nvr2nfr02ya444107g9k9xcq34pfvj-check-flake-inputs.drv' on farm.numtide.com:50051
check-flake-inputs> elastic-arm-26b08a17: building a9nvr2nfr02ya444107g9k9xcq34pfvj-check-flake-inputs.drv