these 3 derivations will be built:
  /nix/store/7610z9cwljkmyc998yzsw1zg9ng9ynkv-ovis-unwrapped-0.5.1.drv
  /nix/store/n3548i6ky321b950yqhhzg73xrssjbc3-ovis-0.5.1.drv
  /nix/store/pf4lm8452fcy0smk2mj97ap49vw174b2-check-ovis.drv