rustup install warnings

[trollkarlen]

When running in k8s using gitlab ci flow using docker in docker(dind) for building a container, I get the following issue when using the rustup installer.

/usr/bin/head: error reading '/proc/self/exe': Bad file descriptor
/usr/bin/head: failed to close '/proc/self/exe': Bad file descriptor
rustup: unknown platform bitness
main: line 358: [: : integer expression expected

Looks like /proc/self/exe does not exist or cant be read this leads to issues in this statement:

if [ "${_ostype}" = unknown-linux-gnu ] && [ "${_bitness}" -eq 32 ]; then

Looks like an alternative way of getting the bitsize would be nice, or atleast a check for that this files exist and are readable and that _bitness is not "".

[hkratz]

This seems to be related to rust-lang/rustup#2700. As the issue only concerns rustup it should be moved to the rustup repo.

[trollkarlen]

Agree will move!

…

On Thu, Oct 28, 2021, 12:04 Hans Kratz ***@***.***> wrote: This seems to be related to rust-lang/rustup#2700 <rust-lang/rustup#2700>. As the issue only concerns rustup it should be moved to the rustup repo. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#90369 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAAWIHHSBGRSKGCFICIPGEDUJEU3FANCNFSM5G4IGP4Q> . Triage notifications on the go with GitHub Mobile for iOS <https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675> or Android <https://play.google.com/store/apps/details?id=com.github.android&referrer=utm_campaign%3Dnotification-email%26utm_medium%3Demail%26utm_source%3Dgithub>.