Cargo install updating registry forever

I'm having trouble to use rust in docker-rust. When I run **sudo docker build -t name .** the process runs forever.
  
```
    Updating registry `https://github.com/rust-lang/crates.io-index`
```

Here my Dockerfile
```
FROM rust:1.23.0

WORKDIR /usr/src/myapp
COPY . .

RUN cargo install

CMD ["myapp"]
```