this derivation will be built:
  /nix/store/15s129mmj1waiasxsz9m2wr2myfpw2vp-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/15s129mmj1waiasxsz9m2wr2myfpw2vp-bcachefs-module-7.0.0-39-generic.drv'...