rustup: LZMA data error on s390x

Problem I cannot find a working way to use rust’s beta or nightly releases on an IBM mainframe running Ubuntu:

root@zla19054:~/.cargo/bin# ./rustup default nightly
info: syncing channel updates for 'nightly-s390x-unknown-linux-gnu'
info: latest update on 2019-08-21, rust version 1.39.0-nightly (bea0372a1 2019-08-20)
info: downloading component 'rustc'
 54.3 MiB /  54.3 MiB (100 %)  13.0 MiB/s in  4s ETA:  0s
info: downloading component 'rust-std'
221.3 MiB / 221.3 MiB (100 %)  16.9 MiB/s in 14s ETA:  0s
info: downloading component 'cargo'
  4.5 MiB /   4.5 MiB (100 %)   1.8 MiB/s in  1s ETA:  0s
info: installing component 'rustc'
info: rolling back changes
error: failed to extract package (perhaps you ran out of disk space?)
info: caused by: lzma data error

Steps

1. Connect to the IBM mainframe of your choice running Ubuntu (reach out to me if you need something here 😉 )
2. Run rustup default nightly(if the link is not being created for you like in my case, directly run the binary: ~/.cargo/bin# ./rustup default nightly) 2.5 same with with the beta
3. Receive error

Of course there is enough space available.

Possible Solution(s) Is there a way to obtain these packages for s390xarchitecture somewhere directly and unpack the files / get them unpacked already, somewhere, and install them manually?

Notes

Output of rustup --version: rustup 1.18.3 (435397f48 2019-05-22) Output of rustup show:

./rustup show
Default host: s390x-unknown-linux-gnu

stable-s390x-unknown-linux-gnu (default)
rustc 1.37.0 (eae3437df 2019-08-13)