these 2 derivations will be built:
  /nix/store/5xrg1mqla3bzsaljs8761g0rrvk7rz85-source.drv
  /nix/store/zgv4g3ali6dcd1hb29mdw2v347bad55n-apm-0.29.0.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy