Fail to install rustup with: toolchain 'stable' is not installed

[mhristache]

I get this error when trying to install rustup on a system with RHEL 6.4:

[root@host1 tools]# curl http://sh.rustup.rs -sSf | sh
info: downloading installer

Welcome to Rust!

This will download and install the official compiler for the Rust
programming language, and its package manager, Cargo.

It will add the `cargo`, `rustc`, `rustup` and other commands to
Cargo's bin directory, located at:

/root/.cargo/bin

This path will then be added to your `PATH` environment variable by
modifying the profile file located at:

/root/.profile

You can uninstall at any time with `rustup self uninstall` and
these changes will be reverted.

WARNING: This is an early beta. Expect breakage.

To cancel installation, type "n", or for more options type "a",
then press the Enter key to continue.

Press the Enter key to install Rust.


error: toolchain 'stable' is not installed
rustup: command failed: /tmp/tmp.Shgx7riysA/rustup-init

Any clues?

[mhristache]

Duplicate of #277. Works after I remove ~/.multirust