Rustup cannot install nightly due to conflict

#1

To reproduce the problem, I deleted ~/.rustup, then installed the stable version. But then:

$ rustup toolchain install nightly
info: syncing channel updates for 'nightly-x86_64-unknown-linux-gnu'
info: latest update on 2018-12-25, rust version 1.33.0-nightly (f960f377f 2018-12-24)
info: downloading component 'rustc'
 82.5 MiB /  82.5 MiB (100 %)  60.4 MiB/s ETA:   0 s                
info: downloading component 'rust-std'
 71.5 MiB /  71.5 MiB (100 %)  60.9 MiB/s ETA:   0 s                
info: downloading component 'cargo'
info: downloading component 'rust-docs'
info: installing component 'rustc'
info: installing component 'rust-std'
info: rolling back changes
error: failed to install component: 'rust-std-x86_64-unknown-linux-gnu', detected conflict: '"lib/rustlib/x86_64-unknown-linux-gnu/lib/libLLVM-8svn.so"'
#2

I encounter the same issue (Kubuntu 18.04).

I was able to install both the beta toolchain and the previous nightly successfuly with:

rustup install nightly-2018-12-24

#3

Looks like the issue has been identified and hopefully fixed for tomorrow’s nightly: https://github.com/rust-lang/rust/issues/57111