this derivation will be built:
  /nix/store/r99fvy54qfpmcmhz74hq8q17f150iq3q-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/r99fvy54qfpmcmhz74hq8q17f150iq3q-bcachefs-module-7.0.0-39-generic.drv'...