these 2 derivations will be built:
  /nix/store/qrhgghq5x5xr9wbh1mki7azqzjd3gq08-flake-inputs.drv
  /nix/store/jz6h6sk1rsaj9m7a0cw4yx46f71ffn0x-check-flake-inputs.drv
building '/nix/store/qrhgghq5x5xr9wbh1mki7azqzjd3gq08-flake-inputs.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=20&system=aarch64-darwin&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/qrhgghq5x5xr9wbh1mki7azqzjd3gq08-flake-inputs.drv' on farm.numtide.com:50051
flake-inputs> mac02: building qrhgghq5x5xr9wbh1mki7azqzjd3gq08-flake-inputs.drv
building '/nix/store/jz6h6sk1rsaj9m7a0cw4yx46f71ffn0x-check-flake-inputs.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=20&system=aarch64-darwin&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/jz6h6sk1rsaj9m7a0cw4yx46f71ffn0x-check-flake-inputs.drv' on farm.numtide.com:50051
check-flake-inputs> mac02: building jz6h6sk1rsaj9m7a0cw4yx46f71ffn0x-check-flake-inputs.drv