enhancementhelp wanted
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Description
All the exercises start with something like
// TODO: remove this when you're done with your implementation.
#![allow(unused_variables, dead_code)]
You're training people that it's normal and a good idea to ignore warnings during development. Instead, continue to emphasize what you mention in passing elsewhere -- Rust has great compiler errors!
Of course it's going to have a lot of warnings at the start since you've given them incomplete code. You can
- Just let them deal with it
- Or mention
RUSTFLAGS=-A... cargo ...perhaps
But you shouldn't imply ignoring warnings until you're "done with your implementation" is a good idea, or IMO that ignoring warnings in your source code (as opposed to a command line flag) is a good idea.