lang/rust: Update patch for git2-rs

Tested by:	michaelo
Approved by:	otis (mentor), mikael (rust maintainer)
MFH:		2025Q4
Differential Revision:	https://reviews.freebsd.org/D52988

lang/rust: Update to 1.90.0

Announce:	https://blog.rust-lang.org/2025/09/18/Rust-1.90.0/
ChangeLog:	https://github.com/rust-lang/rust/releases/tag/1.90.0

PR:		289709
Tested by:	mikael,pkubaj

lang/rust-nightly: update 1.91.0.20250805 → 1.91.0.20250907

Approved by:	rust (implicit)

lang/rust: Update to 1.89.0

Announce:	https://blog.rust-lang.org/2025/08/07/Rust-1.89.0/
ChangeLog:	https://github.com/rust-lang/rust/releases/tag/1.89.0

PR:		288923
Tested by:	mikael,pkubaj

lang/rust: fork 1.88 into a pinned port

A temporary workaround for devel/git-branchless and games/veloren-weekly.

PR:		288923, 289015, 289016

lang/rust-nightly: update 1.90.0.20250709 → 1.90.0.20250727

Approved by:	rust (implicit)

lang/rust: bump PORT_LLVM minimum version to 18

Source:
https://github.com/rust-lang/rust/pull/139275/commits/12167d7064597993355e41d3a8c20654bccaf0be

Reported by:	Mark Millard <marklmi@yahoo.com>

lang/rust: Update to 1.88.0

Announce:	https://blog.rust-lang.org/2025/06/26/Rust-1.88.0/
ChangeLog:	https://github.com/rust-lang/rust/releases/tag/1.88.0

PR:		287766
Tested by:	mikael,pkubaj

lang/rust: add missing __ suffix to __powerpc macro

lang/rust: fix powerpc bootstrap

lang/rust: Update to 1.87.0

Announce:	https://blog.rust-lang.org/2025/05/15/Rust-1.87.0/
ChangeLog:	https://github.com/rust-lang/rust/releases/tag/1.87.0

PR:		286829
Tested by:	mikael,pkubaj,Herbert J. Skuhra

lang/rust: remove max LLVM version restriction for PORT_LLVM

LLVM 20 now supported

lang/rust: Update to 1.86.0

Announce:	https://blog.rust-lang.org/2025/04/03/Rust-1.86.0.html
ChangeLog:	https://github.com/rust-lang/rust/releases/tag/1.86.0

Put back rustdoc in _RUST_TOOLS, rustdoc is an integral part of cargo
and has no connection with DOCS.

PR:		285381,285840
Tested by:	mikael,pkubaj

lang/rust: limit PORT_LLVM max to 19

LLVM 20 support currently only exists in trunk.

lang/rust: Update to 1.85.1

While here:
 - remove rustdoc from _RUST_TOOLS, it has to be added only when
   DOCS option is enabled
 - add DOCS to OPTIONS_DEFAULT [1]
 - building docs on armv7 is fixed

PR:		285381 [1]

lang/rust: do not build the documentation on armv7

A bug [1] prevents documentation from being compiled on this
platform, disable it until it's fixed in a release branch.

[1] https://github.com/rust-lang/rust/pull/137632

Reported by:	mmel

lang/rust: Make OpenSSL use the system default truststore in Cargo

Cargo uses curl-rust and git2-rs (which uses curl-rest as well).
Unfortunately, git2-rs calls openssl_probe::init_ssl_cert_env_vars()
unconditionally which breaks the process environment by setting an invalid
value for SSL_CERT_DIR and then the system default truststore is circumvented,
resulting in certificate validation errors even if certctl(8) manages
everything nicely.

Upstream issues:
* https://github.com/alexcrichton/openssl-probe/issues/37
* https://github.com/rust-lang/git2-rs/pull/1130

Reviewed by:	jrm (mentor), mikael (rust)
MFH:		2025Q1
Differential Revision:	https://reviews.freebsd.org/D49120

lang/rust: Update to 1.85.0

Announce: https://blog.rust-lang.org/2025/02/20/Rust-1.85.0.html
ChangeLog: https://github.com/rust-lang/rust/releases/tag/1.85.0

PR:		284884
Tested by:	mikael,pkubaj

lang/rust182: remove port after 182ff2d0ad1b

lang/rust: lang/rust: Update to 1.84.0

Announce:	https://blog.rust-lang.org/2025/01/09/Rust-1.84.0.html
ChangeLog:	https://github.com/rust-lang/rust/releases/tag/1.84.0

PR:		283962
Tested by:	mikael,pkubaj

lang/rust: Fix distinfo for armv7

PR:		283000
Reported by:	Robert Clausecker <fuz@fuz.su>

lang/rust: Update to 1.83.0

Announce:	https://blog.rust-lang.org/2024/11/28/Rust-1.83.0.html
ChangeLog:	https://github.com/rust-lang/rust/releases/tag/1.83.0

PR:		283000
Tested by:	mikael,pkubaj,vishwin

lang/rust: fork 1.82 into a pinned port

A temporary workaround for games/veloren-weekly.

PR:		283039

lang/rust: Fix build on armv7

PR:		282663

lang/rust: Regen bootstrap for armv7

PR:		282663

lang/rust: enable SSE2 by default on i386

Upstream Rust always requires SSE2 for x86.  But back in 2017[^1][^2] we
patched lang/rust to disable SSE2 for i386.  At the time, it was
reported that some people were still using non-SSE2 capable hardware.
More recently, LLVM bugs have been discovered[^3][^4] that can result in
rounding bugs and reduced accuracy when using f64 on non-SSE hardware.
In weird cases, they can even cause wilder unpredictable behavior, like
segfaults.

Revert our change for the sake of Pentium 4 (and later) users.  But add
an SSE2 option.  Disabling it will allow the port to be used on Pentium
3 and older CPUs.

[^1]:
https://github.com/freebsd/freebsd-ports/commit/d65b2886b1b3b2135f0b8982de4d9754517acf61
[^2]: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=223415
[^3]: https://github.com/rust-lang/rust/issues/114479
[^4]: https://github.com/llvm/llvm-project/issues/44218

Reviewed by: emaste
Differential Revision: https://reviews.freebsd.org/D47227

lang/rust: remove max LLVM version restriction for PORT_LLVM

lang/rust: Update to 1.82.0

Announce:	https://blog.rust-lang.org/2024/10/17/Rust-1.82.0.html
ChangeLog:	https://github.com/rust-lang/rust/releases/tag/1.82.0

PR:		282516
Tested by:	mikael,pkubaj

lang/rust: drop "gnu" in the target env for armv6/7

PR:		282518

lang/rust: limit PORT_LLVM max to 18

LLVM 19 support only starts in Rust 1.82; this restriction will be
removed once the update is committed.

lang/rust-nightly: Update to 1.83.0

devel/RStudio: Revert "feat(create-turbo): apply official-starter transform"

This reverts commit 52c0456dd5ec259ac94ee401db79c7ad3569f914.

I have no idea what lead to this commit into devel/RStudio and
lang/rust-nightly to be made.

feat(create-turbo): apply official-starter transform

lang/rust: Update to 1.81.0

Announce:	https://blog.rust-lang.org/2024/09/05/Rust-1.81.0.html
ChangeLog:	https://github.com/rust-lang/rust/releases/tag/1.81.0

PR:		281300
Tested by:	mikael,pkubaj,Herbert J. Skuhra

lang/rust: Update to 1.80.1

Announce:	https://blog.rust-lang.org/2024/07/25/Rust-1.80.0.html
		https://blog.rust-lang.org/2024/08/08/Rust-1.80.1.html
ChangeLog:	https://github.com/rust-lang/rust/releases/tag/1.80.0

PR:		280490,246993
Tested by:	mikael,pkubaj

lang/rust: enable rls on powerpc

Builds fine on 13.3-RELEASE and newer.

lang/rust: Attempt to fix build on armv7

Reported by:	mandree,mmel

lang/rust: reintroduce EXTRA_PATCHES for specific ARCH

It was dropped in 988dc662364d9ab3d7cea82c642068a27b0c1254 but it's
still needed.

Reported by:	mandree,mmel

lang/rust: bump PORT_LLVM minimum version to 17

Source:
https://github.com/rust-lang/rust/commit/1ac0239bd23e06330d7d8ba7fc40584bb13a460d

lang/rust: Update to 1.79.0

Announce:	https://blog.rust-lang.org/2024/06/13/Rust-1.79.0.html
ChangeLog:	https://github.com/rust-lang/rust/releases/tag/1.79.0

PR:		279707
Tested by:	pkubaj,mikael

lang/rust-nightly: Update to 2024-05-07

lang/rust: Update to 1.78.0

While here, disable RUST_BACKTRACE on ppc64le only

Announce:	https://blog.rust-lang.org/2024/05/02/Rust-1.78.0.html
ChangeLog:	https://github.com/rust-lang/rust/releases/tag/1.78.0

PR:		278834
Tested by:	pkubaj,mikael

lang/rust: remap debuginfo

Prior to this update, when the rust compiler generates warnings
or errors that refer to source code for the standard library, its
messaging use the build time path, rather than the installed path.

It's probably more useful for most users of rust to not have to
mentally rename files to find the files in question.

PR:			278133
Differential Revision:	https://reviews.freebsd.org/D44547

lang/rust: enable RUST_BACKTRACE on powerpc since it seems it works now

lang/rust: drop bfd on powerpc

*/*: convert to cmake:indirect

Convert bunch of ports to USES=cmake:indirect

lang/rust: Update bootstrap for aarch64

The previous one did not work.

PR:		277921

lang/rust: Update to 1.77.0

Announce:	https://blog.rust-lang.org/2024/03/21/Rust-1.77.0.html
ChangeLog:	https://github.com/rust-lang/rust/releases/tag/1.77.0

PR:		277786
Tested by:	mikael

lang/rust: Update bootstrap for powerpc

The previous one did not work.

Reported by:	pkubaj

lang/rust: Update bootstrap for aarch64

The previous one did not work.

PR:		277220

lang/rust: bump PORT_LLVM minimum version to 16

Source:
https://github.com/rust-lang/rust/commit/7de6d04bc8033644c09fd1273b6fb3164d04fab3

lang/rust: Update to 1.76.0

Announce:	https://blog.rust-lang.org/2024/02/08/Rust-1.76.0.html
ChangeLog:	https://github.com/rust-lang/rust/releases/tag/1.76.0

PR:		276920
Tested by:	mikael,pkubaj

lang/rust: remove not necessary patch

lang/rust: Fix REINPLACE_CMD with PORT_LLVM option on

PR:		276033
Reported by:	Ale <discipline@tiscali.it>

lang/rust: Update to 1.75.0

Announce:	https://blog.rust-lang.org/
ChangeLog:	https://github.com/rust-lang/rust/releases/tag/1.75.0

PR:		276033
Tested by:	mikael,pkubaj

*/*: Sunset 12.4-RELEASE/12-STABLE from ports tree

- Remove all references to defunct ARCH arm
- Remove all references to defunct ARCH sparc64
- Remove x11-drivers/xf86-video-sunffb which requires defunct sparc64
  ARCH
- Remove sysutils/afbinit requires defunct sparc64 ARCH
- Remove all references to bktr driver
- Remove all references to defunct FreeBSD_12
- Remove all references to OSVERSION/OSREL corresponding to 12
- Remove conditionals in Mk/Uses/cabal.mk
- Remove sparc reference from Mk/Uses/qt-dist.mk
- Remove BROKEN_sparc64/NOT_FOR_ARCH=sparc64
- Remove BROKEN_FreeBSD_12* from:
- Remove OpenSSL patches from:
- Remove conditional flags for OSVERSION >= 1300000 to fixed flags.
  Also move conditional flags for non sparc64/arm ARCH to fixed flags.

Reviewed by:	brooks, jbeich, rene, salvadore
Differential Revision: https://reviews.freebsd.org/D42068

lang/rust: Update to 1.74.1

Announce:	https://blog.rust-lang.org/2023/12/07/Rust-1.74.0.html
		https://blog.rust-lang.org/2023/11/16/Rust-1.74.1.html
ChangeLog:	https://github.com/rust-lang/rust/releases/tag/1.74.0
		https://github.com/rust-lang/rust/releases/tag/1.74.1

PR:		275243
Tested by:	mikael,pkubaj

lang/rust: Garbage collect powerpc patches

PR:	273753

lang/rust: Update to 1.73.0

Announce:	https://blog.rust-lang.org/2023/10/05/Rust-1.73.0.html
ChangeLog:	https://github.com/rust-lang/rust/releases/tag/1.73.0

PR:		274499
Tested by:	mikael,pkubaj

lang/rust: fix typo uncaught from previous commit

Use ${LLVM_VERSION} provided from USES=llvm for consistency

lang/rust: resurrect PORT_LLVM as a non-default OPTION

Rust uses LLVM for code generation [0] and bundles their own copy
of a release that they fully support in relation to the rest of
rustc. This however adds to an already intensive build process. For
the benefit of those building from source, resurrect the PORT_LLVM
option, allowing to link with an existing devel/llvm port of the
user's choosing within Rust compatibility ranges. This remains unset
by default.

PORT_LLVM was removed during an era when Rust tracked LLVM trunk,
during the LLVM 7.0 development cycle. Starting with LLVM 8.0, Rust
tracks LLVM releases with upstream cherry-picks, similar to our
base system LLVM process. [1] Additionally, instead of making changes
directly in their bundled LLVM, llvm-wrapper takes care of anything
needed in that area. [2] Issues stemming from this option have since
been resolved or overcome.

[0] https://rustc-dev-guide.rust-lang.org/backend/codegen.html
[1] https://rustc-dev-guide.rust-lang.org/backend/updating-llvm.html
[2]
https://github.com/rust-lang/rust/tree/master/compiler/rustc_llvm/llvm-wrapper

Co-authored-by: Evgeniy Khramtsov <2khramtsov_gmail.com>
Approved by: tobik (rust)
Differential Revision: https://reviews.freebsd.org/D32654

lang/rust: Update to 1.72.0

Announce:	https://blog.rust-lang.org/2023/08/24/Rust-1.72.0.html
ChangeLog:	https://github.com/rust-lang/rust/releases/tag/1.72.0

PR:		244316
Tested by:	mikael,pkubaj

lang/rust: Update to 1.71.0

Announce:	https://blog.rust-lang.org/2023/07/13/Rust-1.71.0.html
ChangeLog:	https://github.com/rust-lang/rust/releases/tag/1.71.0

PR:		272449
Tested by:	mikael,pkubaj,vishwin

lang/rust: add LTO option

lang/rust: Fix build with LibreSSL 3.7.x

PR:		266670
Obtained from:	OpenBSD Ports

all: remove explicit versions in USES=python for "3.x+"

The logic in USES=python will automatically convert this to 3.8+ by
itself.

Adjust two ports that only had Python 3.7 mentioned but build fine
on Python 3.8 too.

finance/quickfix: mark BROKEN with PYTHON

libtool: compile:  c++ -DHAVE_CONFIG_H -I. -I../.. -I -I. -I.. -I../.. -I../C++
-DLIBICONV_PLUG -DPYTHON_MAJOR_VERSION=3 -Wno-unused-variable
-Wno-maybe-uninitialized -O2 -pipe -DLIBICONV_PLUG -fstack-protector-strong
-fno-strict-aliasing -DLIBICONV_PLUG -Wall -ansi
-Wno-unused-command-line-argument -Wpointer-arith -Wwrite-strings
-Wno-overloaded-virtual -Wno-deprecated-declarations -Wno-deprecated -std=c++0x
-MT _quickfix_la-QuickfixPython.lo -MD -MP -MF
.deps/_quickfix_la-QuickfixPython.Tpo -c QuickfixPython.cpp  -fPIC -DPIC -o
.libs/_quickfix_la-QuickfixPython.o
warning: unknown warning option '-Wno-maybe-uninitialized'; did you mean
'-Wno-uninitialized'? [-Wunknown-warning-option]
QuickfixPython.cpp:175:11: fatal error: 'Python.h' file not found
          ^~~~~~~~~~
1 warning and 1 error generated.

Reviewed by:	portmgr, vishwin, yuri
Differential Revision:	<https://reviews.freebsd.org/D40568>

lang/rust: Documentation installation fix.

Add the missing  _COMPONENTS for the documentation.

Differential Revision:	https://reviews.freebsd.org/D40510

lang/rust: Fix docs building.

Add the missing "pub struct sockcred2" in module "libc".
Error:
error[E0412]: cannot find type `sockcred2` in module `libc`
   --> library/std/src/os/unix/net/ancillary.rs:211:29
    |
211 | pub struct SocketCred(libc::sockcred2);
    |                             ^^^^^^^^^ not found in `libc`

Reported by:		kib
Differential Revision:	https://reviews.freebsd.org/D40509

lang/rust: Garbage collect shebangfix

These issues were fixed a year ago.

Differential Revision:	https://reviews.freebsd.org/D40508

lang/rust: Update to 1.70.0

Announce:	https://blog.rust-lang.org/2023/06/01/Rust-1.70.0.html
ChangeLog:	https://github.com/rust-lang/rust/releases/tag/1.70.0

PR:		271797
Tested by:	mikael,pkubaj

lang/rust: Add rust-analyzer-proc-macro-srv back to the package

This binary is required for proc macro expansion in rust-analyzer

PR:		271179

lang/rust: always build rustdoc

Due to a regression in rust [1], rustdoc is not built anymore but
is required by some ports.
Force the build of rustdoc.

[1]
https://github.com/rust-lang/rust/commit/11e002a001348e7ea035c0cb2665be806e2a832e

PR:		271036

lang/rust: drop binutils dependency on powerpc

It's not used anymore.

lang/rust: Update to 1.69.0

Announce:	https://blog.rust-lang.org/2023/04/20/Rust-1.69.0.html
ChangeLog:	https://github.com/rust-lang/rust/releases/tag/1.69.0

PR:		270953
Tested by:	mikael,pkubaj

*/*: Sunset 12.3-RELEASE from ports tree

- Mk/bsd.port.mk: mark FreeBSD 12.3 as unsupported.
- Mk/Uses/cabal.mk: Remove the text-2 workaround for 12.3-RELEASE
- biology/wfa2-lib: remove obsolete patch
- databases/mongodb60: remove IGNORE for EOL FreeBSD 12.3
- devel/concurrencpp: remove workaround for EOL FreeBSD 12.3
- devel/electron22: remove IGNORE for EOL FreeBSD 12.3
- devel/malloy: this should build fine on 12.4-RELEASE
- devel/qcoro: remove BROKEN for EOL FreeBSD 12.3
- devel/root: remove workaround for EOL FreeBSD 12.3
- editors/imhex: remove IGNORE for EOL FreeBSD 12.3
- emulators/ppsspp: remove workaround for EOL FreeBSD 12.3
- emulators/rpcs3: remove workaround for EOL FreeBSD 12.3
- emulators/yuzu: remove workaround for EOL 12.3-RELEASE

lang/rust: update to 1.68.2

Changelog:	https://github.com/rust-lang/rust/releases/tag/1.68.2

lang/rust: update to 1.68.1

Changelog:	https://github.com/rust-lang/rust/releases/tag/1.68.1

lang/rust: garbage collect patch

PR:		270271

lang/rust: Update to 1.68.0

Announce:	https://blog.rust-lang.org/2023/03/09/Rust-1.68.0.html
ChangeLog:	https://github.com/rust-lang/rust/releases/tag/1.68.0

PR:		270080
Tested by:	mikael,pkubaj

lang/rust: fix fetching on powerpc64

lang/rust: Update to 1.67.1

Announce:	https://blog.rust-lang.org/2023/01/26/Rust-1.67.0.html
		https://blog.rust-lang.org/2023/02/09/Rust-1.67.1.html
ChangeLog:      https://github.com/rust-lang/rust/releases/tag/1.67.0
		https://github.com/rust-lang/rust/releases/tag/1.67.1

PR:		269336
Reviewed by:	pkubaj
Tested by:	mikael,pkubaj

lang/rust: remove support for armv6 and powerpc64 elfv1

Support for both has been removed from lang/rust-bootstrap.

lang/rust: Update to 1.66.1

Announce:	https://blog.rust-lang.org/2023/01/10/Rust-1.66.1.html
ChangeLog:	https://github.com/rust-lang/rust/releases/tag/1.66.1

lang/rust: Update to 1.66.0

Announce:	https://blog.rust-lang.org/2022/12/15/Rust-1.66.0.html
ChangeLog:	https://github.com/rust-lang/rust/releases/tag/1.66.0
PR:		268415
Exp-run by:	antoine
Tested by:	mikael,pkubaj

lang/rust: don't link to libatomic on armv7

Reported by:	mikael

lang/rust: fix build on armv7 the same way as for powerpc

lang/rust: allow using the default gcc on powerpc instead of forcing gcc12

lang/rust: Update to 1.65.0

Announce:	https://blog.rust-lang.org/2022/11/03/Rust-1.65.0.html
ChangeLog:	https://github.com/rust-lang/rust/releases/tag/1.65.0

PR:		267622
Reviewed by:	tokib, pkubaj
Tested by:	mikael, pkubaj

USES=cargo: Fix CARGO_BUILDDEP=any-version

Fix update.sh to only replace the first version.

lang/rust: Update to 1.64.0

Announce: https://blog.rust-lang.org/2022/09/22/Rust-1.64.0.html
ChangeLog: https://github.com/rust-lang/rust/releases/tag/1.64.0

PR:		267173

*/*: Update path set in BUILD_DEPENDS for CMake

Commit b23ea4e2d2f51b53d8915fe9fd7b4efbdd575e38 changed its location to
devel/cmake-core

Approved by:	portmgr (blanket)

Remove WWW entries moved into port Makefiles

Commit b7f05445c00f has added WWW entries to port Makefiles based on
WWW: lines in pkg-descr files.

This commit removes the WWW: lines of moved-over URLs from these
pkg-descr files.

Approved by:		portmgr (tcberner)

Add WWW entries to port Makefiles

It has been common practice to have one or more URLs at the end of the
ports' pkg-descr files, one per line and prefixed with "WWW:". These
URLs should point at a project website or other relevant resources.

Access to these URLs required processing of the pkg-descr files, and
they have often become stale over time. If more than one such URL was
present in a pkg-descr file, only the first one was tarnsfered into
the port INDEX, but for many ports only the last line did contain the
port specific URL to further information.

There have been several proposals to make a project URL available as
a macro in the ports' Makefiles, over time.

lang/rust: fix powerpc64 elfv2 rustc bootstrap checksum

The previous checksum was wrong (size was ok). I recreated the bootstrap,
which also changed its size.

rust: bring back update to 1.63

Revert back the revert of the update of rust and related commits

This revert was drive by beside validation by portmgr via exp-run
and not respectful of the etiquette we have between committers

This reverts commit 8ecb1f8141144c1603eb4026122d2e60eeaccd64.
This reverts commit 04d257baa182926cff158f32cf459e560426add0.
This reverts commit 2757c63bd0e6d01f9f0657fe03bb3a7b49adcae2.
This reverts commit 75f4713de5e3fbd1c6a0cb572e08121814a4072e.
This reverts commit e88e592111c86fdd1c0ac8717dbef9342e15e27c.
This reverts commit 783c056d7d681d66e2c5c59251c275d65274028e.

With hat:	portmgr

Revert "lang/rust: Update to 1.63.0"

This reverts commit f36cc819accadae1fefc14c203e5fbe9c74e1492.

I asked for an exp-run for powerpc and powerpc64 on a recently provided
cluster machine but got no reply.

PR:	265915

lang/rust: Update to 1.63.0

Announce:		https://blog.rust-lang.org/2022/08/11/Rust-1.63.0.html
ChangeLog:		https://github.com/rust-lang/rust/releases/tag/1.63.0
Tested by:		mikael, pkubaj
Exp-run by:		antoine
Differential Revision:	https://reviews.freebsd.org/D36247

lang/rust: Update to 1.62.1

Announce:	https://blog.rust-lang.org/2022/07/19/Rust-1.62.1.html
ChangeLog:	https://github.com/rust-lang/rust/releases/tag/1.62.1

lang: remove 'Created by' lines

A big Thank You to the original contributors of these ports:

  *  Aaron Dalton <aaron@FreeBSD.org>
  *  Adam Weinberger <adamw@FreeBSD.org>
  *  Akinori MUSHA aka knu <knu@idaemons.org>
  *  Alex Dupre <ale@FreeBSD.org>
  *  Alexey Dokuchaev <danfe@FreeBSD.org>
  *  Alonso Cardenas Marquez <acm@FreeBSD.org>
  *  Andreas Klemm <andreas@klemm.gtn.com>
  *  Andrew Pantyukhin <infofarmer@FreeBSD.org>
  *  Andrey Zakhvatov
  *  Anton Berezin <tobez@FreeBSD.org>
  *  Anton Berezin <tobez@tobez.org>

lang/rust: don't overwrite RUST_BOOTSTRAP_VERSION

It was unintentionally overwritten with the update.sh script
This fixes building rust-nightly