these 4 derivations will be built:
  /nix/store/1fb8hfyk9gpvbqmmx7vlyy8mdl4nsydk-source.drv
  /nix/store/07vss010ckrrfhimvs013q8f59yhjj8l-entire-0.12.1-go-modules.drv
  /nix/store/81n10p99ivinpd047yds3wa5wk986wn1-entire-0.12.1.drv
  /nix/store/lmzxb2yh2rw7kpavq28bkvwnkv1nk5zs-check-entire.drv