this derivation will be built:
  /nix/store/vgr2kx53h2gz43rhidz0qibx0slmaz5n-bcachefs-module-7.0.0-28-generic.drv
building '/nix/store/vgr2kx53h2gz43rhidz0qibx0slmaz5n-bcachefs-module-7.0.0-28-generic.drv'...