these 4 derivations will be built:
  /nix/store/3vvkbx24vydn2dd4z47pb8k6ghm8dpnl-nix-fast-build-with-grpc-store-2.0.4.drv
  /nix/store/sxxmrphli40yszcqp39vy7bfqwglk44x-nix-with-grpc-store-2.35.3.drv
  /nix/store/jar0b1dhsrgb94d4bhr4mp3aw9j6nl84-nix-grpc-store-nix-tools.drv
  /nix/store/p630hi677xx12bk7sskbmzy80x4xr2m9-nix-tools-with-plugin-check.drv
building '/nix/store/3vvkbx24vydn2dd4z47pb8k6ghm8dpnl-nix-fast-build-with-grpc-store-2.0.4.drv'
building '/nix/store/sxxmrphli40yszcqp39vy7bfqwglk44x-nix-with-grpc-store-2.35.3.drv'
nix-fast-build-with-grpc-store-2.0.4> tribuchet: building on mac02
nix-with-grpc-store-2.35.3> tribuchet: building on mac02
building '/nix/store/jar0b1dhsrgb94d4bhr4mp3aw9j6nl84-nix-grpc-store-nix-tools.drv'
nix-grpc-store-nix-tools> tribuchet: building on mac02
building '/nix/store/p630hi677xx12bk7sskbmzy80x4xr2m9-nix-tools-with-plugin-check.drv'
nix-tools-with-plugin-check> tribuchet: building on mac02