this derivation will be built:
  /nix/store/dphqlvvhk4i4004y69zm33fkby83lfp7-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/dphqlvvhk4i4004y69zm33fkby83lfp7-bcachefs-module-7.0.0-29-generic.drv'...