this derivation will be built:
  /nix/store/vxkzs7ay6y4xf2kc5gwbkmcswxdfj1v7-bcachefs-module-7.0.0-38-generic.drv
building '/nix/store/vxkzs7ay6y4xf2kc5gwbkmcswxdfj1v7-bcachefs-module-7.0.0-38-generic.drv'...