Nightly version different than proclaimed

[wieczorek1990]

The official website says the current nightly is 1.15 but 1.14 is downloaded when using the script.

[therustmonk]

It's the same for rustup tool too (not only bash version). It seems builds have some problems: https://buildbot.rust-lang.org/waterfall?refresh=15

[steveklabnik]

IIRC this is a bug in nightly, not in rustup.