these 2 derivations will be built:
  /nix/store/9pd1jpwamiy9w1g0r8s5w0s4b3iaf8ms-pi-1.5.0.drv
  /nix/store/z6rxzyd2pv5pvvfng44ah6ydl9s1pa6y-check-pi.drv
building '/nix/store/z6rxzyd2pv5pvvfng44ah6ydl9s1pa6y-check-pi.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=21&system=aarch64-darwin&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/z6rxzyd2pv5pvvfng44ah6ydl9s1pa6y-check-pi.drv' on farm.numtide.com:50051
check-pi> mac02: building z6rxzyd2pv5pvvfng44ah6ydl9s1pa6y-check-pi.drv