Various fixes for Rust on MIPS

Bug-Debian: https://bugs.debian.org/881845
Last-Update: 2020-03-23

Gbp-Pq: Name u-mips-fixes.diff

this test is new in 1.40 and the failure is present on many

Bug: https://github.com/rust-lang/rust/issues/67242

previous rust versions without users having complained or noticed, so
just ignore the failure until upstream fixes it

Gbp-Pq: Name u-tests-ignore-arm.patch

u-make-tests-work-without-rpath

Forwarded: TODO

Gbp-Pq: Name u-make-tests-work-without-rpath.patch

Don't split dwarf debug for a fully-reproducible build

Bug: https://github.com/rust-lang/rust/issues/34902

Gbp-Pq: Name u-reproducible-build.patch

u-ignore-gdb-10-failures

Bug: https://github.com/rust-lang/rust/issues/79009

Gbp-Pq: Name u-ignore-gdb-10-failures.patch

u-8d504aa90416668d8f6b4cbd449e2e1de20fb937

commit 8d504aa90416668d8f6b4cbd449e2e1de20fb937
Bug: https://github.com/rust-lang/rust/issues/84057
Author: Ximin Luo <infinity0@pwned.gg>
Date:   Sun Apr 11 13:47:58 2021 +0100

    bootstrap: check local_rebuild before adding --cfg=bootstrap, closes #84057

Gbp-Pq: Name u-8d504aa90416668d8f6b4cbd449e2e1de20fb937.patch

[PATCH] Check for asm support in UI tests that require it

Add `needs-asm-support` compiletest directive, and use it in asm tests
that require asm support without relying on any architecture specific
features.

Gbp-Pq: Name u-84099.patch

[PATCH] Revert "Auto merge of #79547 - erikdesjardins:byval, r=nagisa"

This reverts commit a094ff9590b83c8f94d898f92c2964a5803ded06, reversing
changes made to d37afad0cc87bf709ad10c85319296ac53030f03.

See https://github.com/rust-lang/rust/issues/80810 for more background

Gbp-Pq: Name 0001-Revert-Auto-merge-of-79547.patch

u-fix-self-bootstrap

Gbp-Pq: Name u-fix-self-bootstrap.patch

[PATCH] bootstrap: Disable initial-exec TLS model on powerpc

Fixes #81334.

Gbp-Pq: Name u-85807.patch

rustc (1.51.0+dfsg1-1) unstable; urgency=medium

  * Upload to unstable.
  * Install the rust-llvm-dwp symlink.
  * Bump ppc64 allowed-failures to 24.

[dgit import unpatched rustc 1.51.0+dfsg1-1]

Import rustc_1.51.0+dfsg1-1.debian.tar.xz

[dgit import tarball rustc 1.51.0+dfsg1-1 rustc_1.51.0+dfsg1-1.debian.tar.xz]

Import rustc_1.51.0+dfsg1.orig.tar.xz

[dgit import orig rustc_1.51.0+dfsg1.orig.tar.xz]