these 2 derivations will be built:
  /nix/store/f9ww4qxrhzk5p5dy67r8dl6z043rf7w4-flake-inputs.drv
  /nix/store/mv1nsqkiwhxzqz84g3pnq15sja0kpx3p-check-flake-inputs.drv
building '/nix/store/f9ww4qxrhzk5p5dy67r8dl6z043rf7w4-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/f9ww4qxrhzk5p5dy67r8dl6z043rf7w4-flake-inputs.drv' on farm.numtide.com:50051
flake-inputs> mac02: building f9ww4qxrhzk5p5dy67r8dl6z043rf7w4-flake-inputs.drv
building '/nix/store/mv1nsqkiwhxzqz84g3pnq15sja0kpx3p-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/mv1nsqkiwhxzqz84g3pnq15sja0kpx3p-check-flake-inputs.drv' on farm.numtide.com:50051
check-flake-inputs> mac02: building mv1nsqkiwhxzqz84g3pnq15sja0kpx3p-check-flake-inputs.drv