Boostrap script does not download Redox repositories

Created by: Csega

Reproduction: Run bootstrap script: curl -sf https://raw.githubusercontent.com/redox-os/redox/master/bootstrap.sh -o bootstrap.sh && bash -e bootstrap.sh

Expected behavior: Download the newest Rust version and download the repositories.

Actual behavior: The newest Rust version (changing multirust to rustup) is installed, but the redox repositories are not copied.

Build information: rustc 1.11.0-nightly (ad7fe6521 2016-06-23), qemu-i386 version 2.0.0 (Debian 2.0.0+dfsg-2ubuntu1.24), Copyright (c) 2003-2008 Fabrice Bellard, Linux eOS 3.19.0-61-generic #69~14.04.1-Ubuntu SMP Thu Jun 9 09:09:13 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux

Blocking/related: [issues or PRs blocking or being related to this issue.]

Misc: [optional: for other relevant information that should be known or cannot be described in the other fields.]

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