this derivation will be built:
  /nix/store/wr9nz9y1hbn6xl0h3zndfbg07yzkinz5-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/wr9nz9y1hbn6xl0h3zndfbg07yzkinz5-bcachefs-module-7.0.0-39-generic.drv'...