this derivation will be built:
  /nix/store/r4q1avj94wmwamwvbdjqrqj95arz71h7-bcachefs-module-7.0.0-38-generic.drv
building '/nix/store/r4q1avj94wmwamwvbdjqrqj95arz71h7-bcachefs-module-7.0.0-38-generic.drv'...