these 4 derivations will be built:
  /nix/store/y7bx68fll4bdq3zjd3ng38alsrc27wbx-bb-app-0.40.0.tgz.drv
  /nix/store/gy60yp7hfhaira5w1irh0sp9c68hyg7j-bb-app-src-with-lock.drv
  /nix/store/qcjjbcnf1gyppg9948n745dpab0rbbi4-bb-app-0.40.0-npm-deps.drv
  /nix/store/gawir2hshwqrrcnw163k65s1hrgc95dg-bb-app-0.40.0.drv