this derivation will be built:
  /nix/store/cvpdklv67xl7md07zk44vxyksvq3h88h-bcachefs-module-7.0.0-38-generic.drv
building '/nix/store/cvpdklv67xl7md07zk44vxyksvq3h88h-bcachefs-module-7.0.0-38-generic.drv'...