this derivation will be built:
  /nix/store/3z4abrlahnpg6l15sixr7k79wyc8aykb-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/3z4abrlahnpg6l15sixr7k79wyc8aykb-bcachefs-module-7.0.0-29-generic.drv'...