Unable to use cargo-chef with old nightly and 2018 edition about cargo-chef HOT 5 CLOSED

Thank you very much! I wasn't aware of some of these options. Using a pre-built docker actually sounds promising. Will try that out.

from cargo-chef.

I'm sorry, but this is not a supported usecase.
We expect you to be using a ~recent version of Rust.

If you want to stick to an older version of cargo-chef, you probably want to use the --locked flag when installing.

from cargo-chef.

@LukeMathWalker Doesn't the project have an MSRV? In our company there are constraints that does not allow me to always use the latest Rust version, nor do I want to update everything every month.

from cargo-chef.

This project does not guarantee an MSRV—it isn't documented anywhere, as you can see from the README.
Even if it did guarantee an MSRV, it still wouldn't work unless you pass --locked when issuing the cargo install command.

It's also worth noticing that the version of Rust you use to compile cargo-chef has nothing to do with the version of Rust you use to compile your own project.
To list a few options:

• you can compile cargo-chef in another Docker build stage and then copy the binary over into the stages used to build your application and its dependencies
• you can download a pre-built binary from our GitHub releases (and verify the checksum to ensure integrity)
• you can use our pre-built Docker images

from cargo-chef.