these 2 derivations will be built:
  /nix/store/mk94fc5zywmn7crjxlrrgajk0zlaw2f8-nix-grpc-store-0.2.3.drv
  /nix/store/dfm0i34yxz90r2i5fmdw2jpnwv9nscb0-nix-grpc-store-exit-stress.drv
building '/nix/store/dfm0i34yxz90r2i5fmdw2jpnwv9nscb0-nix-grpc-store-exit-stress.drv'
nix-grpc-store-exit-stress> tribuchet: building on mac02
nix-grpc-store-exit-stress> Store URL: grpc://127.0.0.1:36884?ca-cert=/private/var/tb/4/scratch/c90041d4ca4783e1/build/ca.pem
nix-grpc-store-exit-stress> Trusted: 0