these 2 derivations will be built:
  /nix/store/yc8nbnvjzw38622454ghxzm53cgmg0qw-flake-inputs.drv
  /nix/store/ps3zg5hm5pf900vjzzj3zaznnf868gmf-check-flake-inputs.drv
building '/nix/store/yc8nbnvjzw38622454ghxzm53cgmg0qw-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/yc8nbnvjzw38622454ghxzm53cgmg0qw-flake-inputs.drv' on farm.numtide.com:50051
flake-inputs> elastic-arm-23d67df9: building yc8nbnvjzw38622454ghxzm53cgmg0qw-flake-inputs.drv
building '/nix/store/ps3zg5hm5pf900vjzzj3zaznnf868gmf-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/ps3zg5hm5pf900vjzzj3zaznnf868gmf-check-flake-inputs.drv' on farm.numtide.com:50051
check-flake-inputs> elastic-arm-23d67df9: building ps3zg5hm5pf900vjzzj3zaznnf868gmf-check-flake-inputs.drv