this derivation will be built:
  /nix/store/al0vp648acbaj4221bm0nx92f3sn0h7v-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/al0vp648acbaj4221bm0nx92f3sn0h7v-bcachefs-module-7.0.0-39-generic.drv'...