Samotop Server does not compile

Trying to install samotop-server gives this error:

error[E0432]: unresolved imports `viaspf::Lookup`, `viaspf::LookupError`, `viaspf::LookupResult`, `viaspf::Name`
  --> C:\Users\\.cargo\registry\src\github.com-1ecc6299db9ec823\samotop-with-spf-0.13.0\src\lookup.rs:10:14
   |
10 | use viaspf::{Lookup, LookupError, LookupResult, Name};
   |              ^^^^^^  ^^^^^^^^^^^  ^^^^^^^^^^^^  ^^^^ no `Name` in the root
   |              |       |            |
   |              |       |            no `LookupResult` in the root
   |              |       no `LookupError` in the root
   |              no `Lookup` in the root
   |              help: a similar name exists in the module: `lookup`

error[E0432]: unresolved import `viaspf::evaluate_spf`
  --> C:\Users\\.cargo\registry\src\github.com-1ecc6299db9ec823\samotop-with-spf-0.13.0\src\lib.rs:13:14
   |
13 | use viaspf::{evaluate_spf, SpfResult};
   |              ^^^^^^^^^^^^ no `evaluate_spf` in the root