this derivation will be built:
  /nix/store/r8946xjk849pv6dd3w67hvirbv42asn0-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/r8946xjk849pv6dd3w67hvirbv42asn0-bcachefs-module-7.0.0-39-generic.drv'...