this derivation will be built:
  /nix/store/wvz6xj0r3h7kvqq21g1s7jrcdy83vfxm-check-dsh.drv
this path will be fetched (0.0 KiB download, 678.0 MiB unpacked):
  /nix/store/gg25w1040cb8mvb14myxgrl0cgpwhrnq-dsh-0.2.1-rc.3