these 3 derivations will be built:
  /nix/store/y88s95zghzkzcdmxbjys56dplj7zhhls-bb-app-src-with-lock.drv
  /nix/store/mivicbyqifqplig4pv6sljzsl8q31k7i-bb-app-0.47.0.drv
  /nix/store/9rq8zxhndd88j8k2sg8wlc6ak4smd4fb-check-bb-app.drv