Not building on 1.44.0

[ghost]

The project is not building on rust 1.44.0 since the package name starts with a number ("2").
To get it to build i had to change the name in the Cargo.toml file to something like "e2i-emulator".

[klemens]

Thanks for reporting! Interestingly this new restriction wasn't mentioned in the release notes and is currently also not mentioned in the reference. It was introduced in rust-lang/cargo#7959.

I guess emulator-2i for the package it is!