these 2 derivations will be built:
  /nix/store/zyikwjgsynas02pviwq3zxfp044y0wgf-pi-1.5.1.drv
  /nix/store/i77kcdh1i5r74gk2rhxy7qrckj8zp9q3-check-pi.drv
building '/nix/store/i77kcdh1i5r74gk2rhxy7qrckj8zp9q3-check-pi.drv' on 'grpc://farm.numtide.com:50051?connect-timeout=20&system=aarch64-darwin&token-file=/run/nix-farm-client/farm-token'
building '/nix/store/i77kcdh1i5r74gk2rhxy7qrckj8zp9q3-check-pi.drv' on farm.numtide.com:50051
check-pi> mac02: building i77kcdh1i5r74gk2rhxy7qrckj8zp9q3-check-pi.drv