this derivation will be built:
  /nix/store/www9izi8zv08x223948667ck43g4jbb5-bcachefs-module-7.0.0-28-generic.drv
building '/nix/store/www9izi8zv08x223948667ck43g4jbb5-bcachefs-module-7.0.0-28-generic.drv'...