these 2 derivations will be built:
  /nix/store/69ar1xfvahy5g6ab1wvsm06sbqc2fzrj-flake-inputs.drv
  /nix/store/9wvaf27jdnydhlaww25xvi8zsgzr27wi-check-flake-inputs.drv
building '/nix/store/69ar1xfvahy5g6ab1wvsm06sbqc2fzrj-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/69ar1xfvahy5g6ab1wvsm06sbqc2fzrj-flake-inputs.drv' on farm.numtide.com:50051
flake-inputs> elastic-arm-a547aa52: building 69ar1xfvahy5g6ab1wvsm06sbqc2fzrj-flake-inputs.drv
building '/nix/store/9wvaf27jdnydhlaww25xvi8zsgzr27wi-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/9wvaf27jdnydhlaww25xvi8zsgzr27wi-check-flake-inputs.drv' on farm.numtide.com:50051
check-flake-inputs> elastic-arm-a547aa52: building 9wvaf27jdnydhlaww25xvi8zsgzr27wi-check-flake-inputs.drv