this derivation will be built:
  /nix/store/v8kh8vv7gmfzmydnjawz0hkgsym570h7-bcachefs-module-7.0.0-38-generic.drv
building '/nix/store/v8kh8vv7gmfzmydnjawz0hkgsym570h7-bcachefs-module-7.0.0-38-generic.drv'...