this derivation will be built:
  /nix/store/hkqmxzyw5784dyg7awqh9c6w3rqqisjr-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/hkqmxzyw5784dyg7awqh9c6w3rqqisjr-bcachefs-module-7.0.0-29-generic.drv'...