these 3 derivations will be built:
  /nix/store/54595iffsk8kyzxf6qh5ddn6qm9mw4vb-ovis-unwrapped-0.5.1.drv
  /nix/store/hplna18q19lmpy0x8q343a6bkmrrw1ms-ovis-0.5.1.drv
  /nix/store/w5c6pisj8l3scq5088j9qcm6iibjwy8g-check-ovis.drv