these 2 derivations will be built:
  /nix/store/7v4hd5vdi8x83194m4111zqyicfwh6jv-flake-inputs.drv
  /nix/store/k7mn5ppyq8hipn1l0wz7gf9bhlm930hg-check-flake-inputs.drv
building '/nix/store/7v4hd5vdi8x83194m4111zqyicfwh6jv-flake-inputs.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=21&system=aarch64-linux&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/7v4hd5vdi8x83194m4111zqyicfwh6jv-flake-inputs.drv' on farm.numtide.com:50051
flake-inputs> elastic-arm-2c14001d: building 7v4hd5vdi8x83194m4111zqyicfwh6jv-flake-inputs.drv
building '/nix/store/k7mn5ppyq8hipn1l0wz7gf9bhlm930hg-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/k7mn5ppyq8hipn1l0wz7gf9bhlm930hg-check-flake-inputs.drv' on farm.numtide.com:50051
check-flake-inputs> elastic-arm-2c14001d: building k7mn5ppyq8hipn1l0wz7gf9bhlm930hg-check-flake-inputs.drv