these 2 derivations will be built:
  /nix/store/6xb54yabv5j2z2nazcwmx0r3v88gd9zk-flake-inputs.drv
  /nix/store/iam7a88k05y55fy4w4l9izjz57kh6j86-check-flake-inputs.drv
building '/nix/store/6xb54yabv5j2z2nazcwmx0r3v88gd9zk-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/6xb54yabv5j2z2nazcwmx0r3v88gd9zk-flake-inputs.drv' on farm.numtide.com:50051
flake-inputs> elastic-arm-23d67df9: building 6xb54yabv5j2z2nazcwmx0r3v88gd9zk-flake-inputs.drv
building '/nix/store/iam7a88k05y55fy4w4l9izjz57kh6j86-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/iam7a88k05y55fy4w4l9izjz57kh6j86-check-flake-inputs.drv' on farm.numtide.com:50051
check-flake-inputs> elastic-arm-23d67df9: building iam7a88k05y55fy4w4l9izjz57kh6j86-check-flake-inputs.drv