these 2 derivations will be built:
  /nix/store/72zj4vfdz7fxn3ifgdfl58dbr97mrbn2-droid.drv
  /nix/store/13q1jfqhr854agacsbv691h37sjs603s-droid-0.208.2.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy