[Bug 2049493] Re: Newer rustc version needed in jammy to build chromium updates

[Zixing Liu]

Hi,

I have prepared Rust 1.71 backport with profiler runtime enabled:
https://launchpad.net/~liushuyu-011/+archive/ubuntu/rust-
bpo-1.71/+packages. Can you check if this version can build Chromium
121?

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Title:
  Newer rustc version needed in jammy to build chromium updates

Status in rustc package in Ubuntu:
  New

Bug description:
  The next chromium version is making rustc mandatory to build. Chromium
  is a snap built from core22 so using the jammy packages, the build is
  currently failing because it needs libprofiler_builtins.rlib which
  isn't available.

  Upstream provides toolchain builds that can be used but only for amd64 so currently the snap is failing to build on arm
  https://launchpad.net/~chromium-team/+snap/chromium-snap-from-source-beta

  The version upstream is using is 1.75 but it's possible that a lower
  version would be enough for now if libprofiler was enabled

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