this derivation will be built:
  /nix/store/iyznv24islk1n95mxwpxli0qvz2axa1y-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/iyznv24islk1n95mxwpxli0qvz2axa1y-bcachefs-module-7.0.0-39-generic.drv'...