this derivation will be built:
  /nix/store/ch8lbpyszc66ijgw618hkjnzgr96sjw2-bcachefs-module-7.0.0-38-generic.drv
building '/nix/store/ch8lbpyszc66ijgw618hkjnzgr96sjw2-bcachefs-module-7.0.0-38-generic.drv'...