Yusuke Abe

@rbtcollins Thanks for your comment. I will add some unit test.

I am trying to add a unit test in `tests/cli-misc.rs` but it gives `panicked at 'No process instance'` error. How can I get the result of [cmd.env(name, new_value);](https://github.com/rust-lang/rustup/blob/master/src/env_var.rs#L35) in the...

I had a wrong understanding. I will try to fix it. Thanks so much for your comment.

I'm using `cmd.get_envs()`, an unstable function to check the result of `prepend_path`, but it fails clippy check on CI. Is there any workaround for this?

@rbtcollins Thanks so much for your suggestion. I will fix this.

Thanks for the support. I am stuck for about a month and would like to close it.

@rbtcollins @dmartin sorry for the late reply I'd like to finish this.

I have requested the review to @rbtcollins

@rustbot claim

I would like to take over this PR.