these 3 derivations will be built:
  /nix/store/ysmpi21hmqdm96gsx4hwx95invyvnb07-rtk-1.0.1-vendor.drv
  /nix/store/8rnw5ybx8a6ilijcfna9zhb2f3kxq0pq-rtk-1.0.1.drv
  /nix/store/6yl26mcfkpszcab923r4ljxhc99q3nhb-check-rtk.drv
these 2 paths will be fetched (0.0 KiB download, 56.3 MiB unpacked):
  /nix/store/ycqb7g59riysaanin3w8ydfs5ywp1r3y-rtk-1.0.1-vendor-staging
  /nix/store/pfzp9kdmiil0vlwcsd77mqz6zac53k9s-source