[Bug 2139436] Re: cargo fetch fails with "invalid version 0 on git_proxy_options" error

[Petrichor Park]

Hi users, does anybody still need this fixed on other versions of rustc?
If your use-cases are served by updating rustc, then I am happy to close
this bug. Otherwise we will backport the fix to other rustc versions.

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https://bugs.launchpad.net/bugs/2139436

Title:
  cargo fetch fails with "invalid version 0 on git_proxy_options" error

Status in rustc-1.83 package in Ubuntu:
  New
Status in rustc-1.84 package in Ubuntu:
  New
Status in rustc-1.85 package in Ubuntu:
  Confirmed
Status in rustc-1.89 package in Ubuntu:
  New
Status in rustc-1.91 package in Ubuntu:
  Fix Released
Status in rustc-1.83 source package in Jammy:
  New
Status in rustc-1.84 source package in Jammy:
  New
Status in rustc-1.85 source package in Jammy:
  New
Status in rustc-1.89 source package in Jammy:
  New
Status in rustc-1.91 source package in Jammy:
  Fix Released
Status in rustc-1.83 source package in Noble:
  New
Status in rustc-1.84 source package in Noble:
  New
Status in rustc-1.85 source package in Noble:
  New
Status in rustc-1.89 source package in Noble:
  New
Status in rustc-1.91 source package in Noble:
  Fix Released

Bug description:
  Hello!

  I actually tried rustc-1.85, 1.89, 1.84, 1.83, and all of them fail.
  Looks like only 1.82 version (cargo-1.82) works and < 1.82 including
  default 1.75.

  Checked both Ubuntu 22.04 and 24.04. Both are the same.

  The problem happens when git-ssh dependencies are used. Looks like
  this may be related to incompatibility of cargo and libgit versions.

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