these 2 derivations will be built:
  /nix/store/3nsly6qn86cy9l7pmalbx8b55hx1041n-flake-inputs.drv
  /nix/store/mac37yyi2d8nbn0b8p7karx7zdkp9c20-check-flake-inputs.drv
building '/nix/store/3nsly6qn86cy9l7pmalbx8b55hx1041n-flake-inputs.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=20&restart-grace=900&system=aarch64-darwin&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/3nsly6qn86cy9l7pmalbx8b55hx1041n-flake-inputs.drv' on farm.numtide.com:50051
flake-inputs> mac02: building 3nsly6qn86cy9l7pmalbx8b55hx1041n-flake-inputs.drv
building '/nix/store/mac37yyi2d8nbn0b8p7karx7zdkp9c20-check-flake-inputs.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=20&restart-grace=900&system=aarch64-darwin&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/mac37yyi2d8nbn0b8p7karx7zdkp9c20-check-flake-inputs.drv' on farm.numtide.com:50051
check-flake-inputs> mac02: building mac37yyi2d8nbn0b8p7karx7zdkp9c20-check-flake-inputs.drv