sccache: Version 0.5.1 cannot be compiled

cargo install sccache =>

[blah]
   Compiling sccache v0.5.1
error[E0277]: the trait bound `TaskClusterTokenLoader: reqsign::google::token::TokenLoad` is not satisfied
  --> /home/alexey/.cargo/registry/src/index.crates.io-6f17d22bba15001f/sccache-0.5.1/src/cache/gcs.rs:69:43
   |
69 |               builder.customed_token_loader(Box::new(TaskClusterTokenLoader {
   |  ___________________________________________^
70 | |                 scope: rw_mode.to_scope().to_string(),
71 | |                 url: cred_url.to_string(),
72 | |             }));
   | |______________^ the trait `reqsign::google::token::TokenLoad` is not implemented for `TaskClusterTokenLoader`
   |
   = note: required for the cast from `Box<TaskClusterTokenLoader>` to `Box<(dyn reqsign::google::token::TokenLoad + 'static)>`

For more information about this error, try `rustc --explain E0277`.
error: could not compile `sccache` (lib) due to previous error