this derivation will be built:
  /nix/store/fc2b631fzg79w7cgqznqwzgr1pgq1jka-bcachefs-module-7.0.0-31-generic.drv
building '/nix/store/fc2b631fzg79w7cgqznqwzgr1pgq1jka-bcachefs-module-7.0.0-31-generic.drv'...