this derivation will be built:
  /nix/store/wcn7vqis0j457x52jfwcjgbjj1z2y9c8-niks3-go-unit-tests.drv
this path will be fetched (187.7 MiB download, 611.7 MiB unpacked):
  /nix/store/axac121p97f6xhpfng0x63ly1hsz75z4-rustfs-1.0.4