[Bug 2039341] Re: rustc 1.70 and cargo 0.71 required by firefox 120

[Zixing Liu]

Sorry for the wait.

I have prepared preliminary packages at
https://launchpad.net/~liushuyu-011/+archive/ubuntu/rust-
updates-1.70/+packages.

The complete corresponding source can be found in:
https://git.launchpad.net/~canonical-foundations/ubuntu/+source/rustc/tree/?h=lunar-1.70
https://git.launchpad.net/~canonical-foundations/ubuntu/+source/rustc/tree/?h=jammy-1.70
https://git.launchpad.net/~canonical-foundations/ubuntu/+source/rustc/tree/?h=focal-1.70

On armhf, a copy of the patched GDB needs to be used. Please see
https://bugs.launchpad.net/gdb/+bug/2041396 for more information. You
can find a copy of the binaries at
https://launchpad.net/~liushuyu-011/+archive/ubuntu/misc/+sourcepub/15343232/+listing-
archive-extra.

Note that if you will upload those packages to the Ubuntu Primary
Archive (any pockets), please notify the Foundations Team.

Thanks,
Zixing

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https://bugs.launchpad.net/bugs/2039341

Title:
  rustc 1.70 and cargo 0.71 required by firefox 120

Status in cargo package in Ubuntu:
  New
Status in rustc package in Ubuntu:
  New

Bug description:
  Firefox 120+ requires rustc 1.70 and cargo 0.71 to build¹².

  The beta phase for Firefox 120.0 begins on 2023-10-23 and release
  candidates will be available from 2023-11-13.

  Eventually Thunderbird will need an updated rust toolchain as well.

  We will need these in all supported releases of Ubuntu: focal, jammy,
  lunar.

  ¹ https://bugzilla.mozilla.org/show_bug.cgi?id=1857172
  ² https://phabricator.services.mozilla.com/D190161

  Rust toolchain upgrades are usually relatively safe from a FTBFS point
  of view, since new releases are subjected to a crater run, crater
  being a tool that compiles the entirety of the crates.io packages.

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