Update Reqwest in order to avoid Crash with proxy URLs containing `^`

[mmacedoeu]

Problem

Some urls on proxy env vars cause rustup-init to panic

Steps

1. setup proxy env vars with url encoded special chars

Possible Solution(s)

Update reqwest to newer version see seanmonstar/reqwest#442

Notes

[gnanasekar-somanathan]

Facing same problem behind proxy when installing rustup
thread 'reqwest-internal-sync-runtime' panicked at 'a parsed Url should always be a valid Uri: InvalidUri(InvalidUriChar)', src/libcore/result.rs:997:5

Any workarounds?

[kinnison]

So based on the referenced bug in reqwest, I think we need to update our lock file for a newer http version. I'll look at this ASAP. Short-term you could set RUSTUP_USE_CURL=1 in your environment to push rustup back to using libcurl.

[pkking]

Is there a windows binary contain this fix? I download latest rustup from website still meet this problem

[kinnison]

@pkking I'm afraid we don't do nightly or similar for rustup itself. We are looking to cut a new release of rustup fairly soon (within a week or two) which will contain the fix. Until then you would have to build your own copy (which isn't too hard to do) if you wanted the fix.