this derivation will be built:
  /nix/store/ai0j8y246xqha09g18znjp0s6zn2r4fl-bcachefs-module-7.0.0-38-generic.drv
building '/nix/store/ai0j8y246xqha09g18znjp0s6zn2r4fl-bcachefs-module-7.0.0-38-generic.drv'...