.gitignore

@@ -1,2 +1,2 @@
-SOURCES/rustc-1.76.0-src.tar.xz
+SOURCES/rustc-1.75.0-src.tar.xz
-SOURCES/wasi-libc-03b228e46bb02fcc5927253e1b8ad715072b1ae4.tar.gz
+SOURCES/wasi-libc-bd950eb128bff337153de217b11270f948d04bb4.tar.gz

.rust.metadata

@@ -1,2 +1,2 @@
-755339e8131d618d3c1095a581f27afc573ad310 SOURCES/rustc-1.76.0-src.tar.xz
+9ad7bb54dc9572c103b855cdcc823addbb34d15d SOURCES/rustc-1.75.0-src.tar.xz
-124d114ffb627ada36bfa1df0216bcea0f55a15e SOURCES/wasi-libc-03b228e46bb02fcc5927253e1b8ad715072b1ae4.tar.gz
+55eaa32c99cc8ec970f2db2d340a605724589f9b SOURCES/wasi-libc-bd950eb128bff337153de217b11270f948d04bb4.tar.gz

SOURCES/0001-bootstrap-only-show-PGO-warnings-when-verbose.patch

@@ -0,0 +1,33 @@
+From 776146e9ebb6bbe17a37bfad955f3dac95317275 Mon Sep 17 00:00:00 2001
+From: Josh Stone <jistone@redhat.com>
+Date: Thu, 16 Nov 2023 10:42:23 -0800
+Subject: [PATCH] bootstrap: only show PGO warnings when verbose
+
+Building rustc with `--rust-profile-use` is currently dumping a lot of
+warnings of "no profile data available for function" from `rustc_smir`
+and `stable_mir`. These simply aren't exercised by the current profile-
+gathering steps, but that's to be expected for new or experimental
+functionality. I think for most people, these warnings will be just
+noise, so it makes sense to only have them in verbose builds.
+---
+ src/bootstrap/src/core/build_steps/compile.rs | 4 +++-
+ 1 file changed, 3 insertions(+), 1 deletion(-)
+
+diff --git a/src/bootstrap/src/core/build_steps/compile.rs b/src/bootstrap/src/core/build_steps/compile.rs
+index af69860df1c5..51e4195827fc 100644
+--- a/src/bootstrap/src/core/build_steps/compile.rs
++++ b/src/bootstrap/src/core/build_steps/compile.rs
+@@ -887,7 +887,9 @@ fn run(self, builder: &Builder<'_>) {
+         } else if let Some(path) = &builder.config.rust_profile_use {
+             if compiler.stage == 1 {
+                 cargo.rustflag(&format!("-Cprofile-use={path}"));
+-                cargo.rustflag("-Cllvm-args=-pgo-warn-missing-function");
++                if builder.is_verbose() {
++                    cargo.rustflag("-Cllvm-args=-pgo-warn-missing-function");
++                }
+                 true
+             } else {
+                 false
+-- 
+2.43.0
+

SOURCES/cargo_vendor.attr

@@ -1,2 +0,0 @@
-%__cargo_vendor_path     ^%{_defaultlicensedir}(/[^/]+)+/cargo-vendor.txt$
-%__cargo_vendor_provides %{_rpmconfigdir}/cargo_vendor.prov

SOURCES/cargo_vendor.prov

@@ -1,127 +0,0 @@
-#! /usr/bin/python3 -s
-# Stripped down replacement for cargo2rpm parse-vendor-manifest
-
-import re
-import subprocess
-import sys
-from typing import Optional
-
-
-VERSION_REGEX = re.compile(
-    r"""
-    ^
-    (?P<major>0|[1-9]\d*)
-    \.(?P<minor>0|[1-9]\d*)
-    \.(?P<patch>0|[1-9]\d*)
-    (?:-(?P<pre>(?:0|[1-9]\d*|\d*[a-zA-Z-][0-9a-zA-Z-]*)(?:\.(?:0|[1-9]\d*|\d*[a-zA-Z-][0-9a-zA-Z-]*))*))?
-    (?:\+(?P<build>[0-9a-zA-Z-]+(?:\.[0-9a-zA-Z-]+)*))?$
-    """,
-    re.VERBOSE,
-)
-
-
-class Version:
-    """
-    Version that adheres to the "semantic versioning" format.
-    """
-
-    def __init__(self, major: int, minor: int, patch: int, pre: Optional[str] = None, build: Optional[str] = None):
-        self.major: int = major
-        self.minor: int = minor
-        self.patch: int = patch
-        self.pre: Optional[str] = pre
-        self.build: Optional[str] = build
-
-    @staticmethod
-    def parse(version: str) -> "Version":
-        """
-        Parses a version string and return a `Version` object.
-        Raises a `ValueError` if the string does not match the expected format.
-        """
-
-        match = VERSION_REGEX.match(version)
-        if not match:
-            raise ValueError(f"Invalid version: {version!r}")
-
-        matches = match.groupdict()
-
-        major_str = matches["major"]
-        minor_str = matches["minor"]
-        patch_str = matches["patch"]
-        pre = matches["pre"]
-        build = matches["build"]
-
-        major = int(major_str)
-        minor = int(minor_str)
-        patch = int(patch_str)
-
-        return Version(major, minor, patch, pre, build)
-
-    def to_rpm(self) -> str:
-        """
-        Formats the `Version` object as an equivalent RPM version string.
-        Characters that are invalid in RPM versions are replaced ("-" -> "_")
-
-        Build metadata (the optional `Version.build` attribute) is dropped, so
-        the conversion is not lossless for versions where this attribute is not
-        `None`. However, build metadata is not intended to be part of the
-        version (and is not even considered when doing version comparison), so
-        dropping it when converting to the RPM version format is correct.
-        """
-
-        s = f"{self.major}.{self.minor}.{self.patch}"
-        if self.pre:
-            s += f"~{self.pre.replace('-', '_')}"
-        return s
-
-
-def break_the_build(error: str):
-    """
-    This function writes a string that is an invalid RPM dependency specifier,
-    which causes dependency generators to fail and break the build. The
-    additional error message is printed to stderr.
-    """
-
-    print("*** FATAL ERROR ***")
-    print(error, file=sys.stderr)
-
- 
-def get_cargo_vendor_txt_paths_from_stdin() -> set[str]:  # pragma nocover
-    """
-    Read lines from standard input and filter out lines that look like paths
-    to `cargo-vendor.txt` files. This is how RPM generators pass lists of files.
-    """
-
-    lines = {line.rstrip("\n") for line in sys.stdin.readlines()}
-    return {line for line in lines if line.endswith("/cargo-vendor.txt")}
-
-
-def action_parse_vendor_manifest():
-    paths = get_cargo_vendor_txt_paths_from_stdin()
-
-    for path in paths:
-        with open(path) as file:
-            manifest = file.read()
-
-        for line in manifest.strip().splitlines():
-            crate, version = line.split(" v")
-            print(f"bundled(crate({crate})) = {Version.parse(version).to_rpm()}")
-
-
-def main():
-    try:
-        action_parse_vendor_manifest()
-        exit(0)
-
-    # print an error message that is not a valid RPM dependency
-    # to cause the generator to break the build
-    except (IOError, ValueError) as exc:
-        break_the_build(str(exc))
-        exit(1)
-
-    break_the_build("Uncaught exception: This should not happen, please report a bug.")
-    exit(1)
-
-
-if __name__ == "__main__":
-    main()

SOURCES/macros.rust-toolset

@@ -1,7 +1,12 @@
-# __rustc: path to the default rustc executable
+# Explicitly use bindir tools, in case others are in the PATH,
+# like the rustup shims in a user's ~/.cargo/bin/.
+#
+# Since cargo 1.31, install only uses $CARGO_HOME/config, ignoring $PWD.
+#   https://github.com/rust-lang/cargo/issues/6397
+# But we can set CARGO_HOME locally, which is a good idea anyway to make sure
+# it never writes to ~/.cargo during rpmbuild.
+%__cargo /usr/bin/env CARGO_HOME=.cargo RUSTFLAGS='%{build_rustflags}' /usr/bin/cargo
 %__rustc /usr/bin/rustc
-
-# __rustdoc: path to the default rustdoc executable
 %__rustdoc /usr/bin/rustdoc
 
 # rustflags_opt_level: default optimization level
@@ -41,56 +46,22 @@
   -Copt-level=%rustflags_opt_level
   -Cdebuginfo=%rustflags_debuginfo
   -Ccodegen-units=%rustflags_codegen_units
-  -Cstrip=none
   %{expr:0%{?_include_frame_pointers} && ("%{_arch}" != "ppc64le" && "%{_arch}" != "s390x" && "%{_arch}" != "i386") ? "-Cforce-frame-pointers=yes" : ""}
   %[0%{?_package_note_status} ? "-Clink-arg=%_package_note_flags" : ""]
 }
 
-# __cargo: cargo command with environment variables
-#
-# CARGO_HOME: This ensures cargo reads configuration file from .cargo/config,
-#       and prevents writing any files to $HOME during RPM builds.
-%__cargo /usr/bin/env CARGO_HOME=.cargo RUSTFLAGS='%{build_rustflags}' /usr/bin/cargo
-
 # __cargo_common_opts: common command line flags for cargo
 #
 # _smp_mflags: run builds and tests in parallel
 %__cargo_common_opts %{?_smp_mflags}
 
-# cargo_prep: macro to set up build environment for cargo projects
+%cargo_prep(V:) (\
-#
+%{__mkdir} -p .cargo \
-# This involves four steps:
+cat > .cargo/config << EOF \
-# - create the ".cargo" directory if it doesn't exist yet
-# - dump custom cargo configuration into ".cargo/config"
-# - remove "Cargo.lock" if it exists (it breaks builds with custom cargo config)
-# - remove "Cargo.toml.orig" if it exists (it breaks running "cargo package")
-#
-# Options:
-#   -V <number>    - unpack and use vendored sources from Source<number> tarball
-#                    (deprecated; use -v instead)
-#   -v <directory> - use vendored sources from <directory>
-#   -N             - Don't set up any registry. Only set up the build configuration.
-%cargo_prep(V:v:N)\
-%{-v:%{-V:%{error:-v and -V are mutually exclusive!}}}\
-%{-v:%{-N:%{error:-v and -N are mutually exclusive!}}}\
-(\
-set -euo pipefail\
-%{__mkdir} -p target/rpm\
-/usr/bin/ln -s rpm target/release\
-%{__rm} -rf .cargo/\
-%{__mkdir} -p .cargo\
-cat > .cargo/config << EOF\
 [build]\
 rustc = "%{__rustc}"\
 rustdoc = "%{__rustdoc}"\
 \
-[profile.rpm]\
-inherits = "release"\
-opt-level = %{rustflags_opt_level}\
-codegen-units = %{rustflags_codegen_units}\
-debug = %{rustflags_debuginfo}\
-strip = "none"\
-\
 [env]\
 CFLAGS = "%{build_cflags}"\
 CXXFLAGS = "%{build_cxxflags}"\
@@ -102,28 +73,27 @@ root = "%{buildroot}%{_prefix}"\
 [term]\
 verbose = true\
 EOF\
-%{-V:%{__tar} -xoaf %{S:%{-V*}}}\
+%if 0%{-V:1}\
-%{!?-N:\
+%{__tar} -xoaf %{S:%{-V*}}\
-cat >> .cargo/config << EOF\
+cat >> .cargo/config << EOF \
-[source.vendored-sources]\
-directory = "%{-v*}%{-V:./vendor}"\
 \
 [source.crates-io]\
-registry = "https://crates.io"\
 replace-with = "vendored-sources"\
-EOF}\
+\
-%{__rm} -f Cargo.toml.orig\
+[source.vendored-sources]\
+directory = "./vendor"\
+EOF\
+%endif\
 )
 
 # __cargo_parse_opts: function-like macro which parses common flags into the
 #       equivalent command-line flags for cargo
 %__cargo_parse_opts(naf:) %{shrink:\
-    %{-n:%{-a:%{error:Can't specify both -n and -a}}}           \
+%{-f:%{-a:%{error:Can't specify both -f(%{-f*}) and -a}}} \
-    %{-f:%{-a:%{error:Can't specify both -f(%{-f*}) and -a}}}   \
   %{-n:--no-default-features}                             \
   %{-a:--all-features}                                    \
   %{-f:--features %{-f*}}                                 \
-    %{nil}                                                      \
+  %{nil}
 }
 
 # NB: cargo_build/test/install do not use the -n/-a/-f argument parsing like
@@ -132,11 +102,11 @@ EOF}\
 # explicitly use --no-default-features, --all-features, or --features XYZ.
 
 # cargo_build: builds the crate with cargo
-%cargo_build\
+%cargo_build \
-%{shrink:                                               \
+%{shrink:\
   %{__cargo} build                                   \
     %{__cargo_common_opts}                           \
-    --profile rpm                                       \
+    --release                                        \
 }
 
 # cargo_test: runs the test suite with cargo
@@ -146,11 +116,11 @@ EOF}\
 # "cargo test" argument parsing need to be bypassed,
 # i.e. "%%cargo_test -- --skip foo" for skipping all tests with names that
 # match "foo".
-%cargo_test\
+%cargo_test \
-%{shrink:                                               \
+%{shrink:\
   %{__cargo} test                                    \
     %{__cargo_common_opts}                           \
-    --profile rpm                                       \
+    --release                                        \
     --no-fail-fast                                   \
 }
 
@@ -161,17 +131,13 @@ EOF}\
 # "$CARGO_HOME/.crates.toml" file, which is used to keep track of which version
 # of a specific binary has been installed, but which conflicts between builds
 # of different Rust applications and is not needed when building RPM packages.
-%cargo_install\
+%cargo_install \
-(\
+%{shrink:                                                         \
-set -euo pipefail                                                   \
-  %{shrink:                                                         \
   %{__cargo} install                                              \
     %{__cargo_common_opts}                                        \
-      --profile rpm                                                 \
     --no-track                                                    \
     --path .                                                      \
-  }                                                                 \
+}                                                                 \
-)
 
 # cargo_license: print license information for all crate dependencies
 #
@@ -187,21 +153,19 @@ set -euo pipefail                                                   \
 # The "cargo tree" command called by this macro will fail if there are missing
 # (optional) dependencies.
 %cargo_license(naf:)\
-(\
+%{shrink:\
-set -euo pipefail\
-%{shrink:                                                           \
     %{__cargo} tree                                                 \
     --workspace                                                     \
     --offline                                                       \
     --edges no-build,no-dev,no-proc-macro                           \
     --no-dedupe                                                     \
+    --target all                                                    \
     %{__cargo_parse_opts %{-n} %{-a} %{-f:-f%{-f*}}}                \
     --prefix none                                                   \
     --format "{l}: {p}"                                             \
     | sed -e "s: ($(pwd)[^)]*)::g" -e "s: / :/:g" -e "s:/: OR :g"   \
-    | sort -u                                                       \
+    | sort -u
-}\
+}
-)
 
 # cargo_license_summary: print license summary for all crate dependencies
 #
@@ -210,46 +174,16 @@ set -euo pipefail\
 # in the dependency tree. This is useful for determining the correct License
 # tag for packages that contain compiled Rust binaries.
 %cargo_license_summary(naf:)\
-(\
+%{shrink:\
-set -euo pipefail\
-%{shrink:                                                           \
     %{__cargo} tree                                                 \
     --workspace                                                     \
     --offline                                                       \
     --edges no-build,no-dev,no-proc-macro                           \
     --no-dedupe                                                     \
+    --target all                                                    \
     %{__cargo_parse_opts %{-n} %{-a} %{-f:-f%{-f*}}}                \
     --prefix none                                                   \
     --format "# {l}"                                                \
     | sed -e "s: / :/:g" -e "s:/: OR :g"                            \
     | sort -u                                                       \
-}\
+}
-)
-
-# cargo_vendor_manifest: write list of vendored crates and their versions
-#
-# The arguments for the internal "cargo tree" call emulate the logic
-# that determines which crates are included when running "cargo vendor".
-# The results are written to "cargo-vendor.txt".
-#
-# TODO: --all-features may be overly broad; this should be modified to
-# use %%__cargo_parse_opts to handle feature flags.
-%cargo_vendor_manifest()\
-(\
-set -euo pipefail\
-%{shrink:                                                           \
-    %{__cargo} tree                                                 \
-    --workspace                                                     \
-    --offline                                                       \
-    --edges normal,build                                            \
-    --no-dedupe                                                     \
-    --all-features                                                  \
-    --prefix none                                                   \
-    --format "{p}"                                                  \
-    | grep -v "$(pwd)"                                              \
-    | sed -e "s: (proc-macro)::"                                    \
-    | sort -u                                                       \
-    > cargo-vendor.txt                                              \
-}\
-)
-

SOURCES/rustc-1.75.0-disable-libssh2.patch

@@ -1,6 +1,6 @@
---- rustc-beta-src/src/tools/cargo/Cargo.lock.orig	2024-01-07 18:12:08.000000000 -0800
+--- ./rustc-beta-src/src/tools/cargo/Cargo.lock.orig	2023-11-12 12:24:35.000000000 -0800
-+++ rustc-beta-src/src/tools/cargo/Cargo.lock	2024-01-09 15:25:51.519781381 -0800
++++ rustc-beta-src/src/tools/cargo/Cargo.lock	2023-11-14 17:01:32.010125953 -0800
-@@ -2071,7 +2071,6 @@
+@@ -2027,7 +2027,6 @@
  dependencies = [
   "cc",
   "libc",
@@ -8,12 +8,10 @@
   "libz-sys",
   "openssl-sys",
   "pkg-config",
-@@ -2113,20 +2112,6 @@
+@@ -2060,20 +2059,6 @@
-  "pkg-config",
-  "vcpkg",
  ]
--
+ 
--[[package]]
+ [[package]]
 -name = "libssh2-sys"
 -version = "0.3.0"
 -source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -26,17 +24,19 @@
 - "pkg-config",
 - "vcpkg",
 -]
- 
+-
- [[package]]
+-[[package]]
  name = "libz-sys"
---- rustc-beta-src/src/tools/cargo/Cargo.toml.orig	2024-01-09 15:23:02.369032291 -0800
+ version = "1.1.9"
-+++ rustc-beta-src/src/tools/cargo/Cargo.toml	2024-01-09 15:24:44.015679666 -0800
+ source = "registry+https://github.com/rust-lang/crates.io-index"
+--- ./rustc-beta-src/src/tools/cargo/Cargo.toml.orig	2023-11-14 17:01:32.010125953 -0800
++++ rustc-beta-src/src/tools/cargo/Cargo.toml	2023-11-14 17:02:44.645097701 -0800
 @@ -40,7 +40,7 @@
- curl-sys = "0.4.70"
+ curl-sys = "0.4.68"
  filetime = "0.2.22"
  flate2 = { version = "1.0.28", default-features = false, features = ["zlib"] }
 -git2 = "0.18.1"
 +git2 = { version = "0.18.1", default-features = false, features = ["https"] }
  git2-curl = "0.19.0"
- gix = { version = "0.56.0", default-features = false, features = ["blocking-http-transport-curl", "progress-tree", "revision"] }
+ gix = { version = "0.55.2", default-features = false, features = ["blocking-http-transport-curl", "progress-tree", "revision"] }
  gix-features-for-configuration-only = { version = "0.35.0", package = "gix-features", features = [ "parallel" ] }

SOURCES/rustc-1.76.0-unbundle-sqlite.patch

@@ -1,21 +0,0 @@
---- rustc-beta-src/src/tools/cargo/Cargo.lock.orig	2024-01-07 18:12:08.000000000 -0800
-+++ rustc-beta-src/src/tools/cargo/Cargo.lock	2024-01-09 15:36:23.808367445 -0800
-@@ -2109,7 +2109,6 @@
- source = "registry+https://github.com/rust-lang/crates.io-index"
- checksum = "cf4e226dcd58b4be396f7bd3c20da8fdee2911400705297ba7d2d7cc2c30f716"
- dependencies = [
-- "cc",
-  "pkg-config",
-  "vcpkg",
- ]
---- rustc-beta-src/src/tools/cargo/Cargo.toml.orig	2024-01-07 18:12:08.000000000 -0800
-+++ rustc-beta-src/src/tools/cargo/Cargo.toml	2024-01-09 15:36:18.534437627 -0800
-@@ -73,7 +73,7 @@
- pulldown-cmark = { version = "0.9.3", default-features = false }
- rand = "0.8.5"
- regex = "1.10.2"
--rusqlite = { version = "0.30.0", features = ["bundled"] }
-+rusqlite = { version = "0.30.0", features = [] }
- rustfix = { version = "0.7.0", path = "crates/rustfix" }
- same-file = "1.0.6"
- security-framework = "2.9.2"

SPECS/rust.spec

@@ -1,5 +1,5 @@
 Name:           rust
-Version:        1.76.0
+Version:        1.75.0
 Release:        1%{?dist}
 Summary:        The Rust Programming Language
 License:        (Apache-2.0 OR MIT) AND (Artistic-2.0 AND BSD-3-Clause AND ISC AND MIT AND MPL-2.0 AND Unicode-DFS-2016)
@@ -14,9 +14,9 @@ ExclusiveArch:  %{rust_arches}
 # To bootstrap from scratch, set the channel and date from src/stage0.json
 # e.g. 1.59.0 wants rustc: 1.58.0-2022-01-13
 # or nightly wants some beta-YYYY-MM-DD
-%global bootstrap_version 1.75.0
+%global bootstrap_version 1.74.0
-%global bootstrap_channel 1.75.0
+%global bootstrap_channel 1.74.0
-%global bootstrap_date 2023-12-28
+%global bootstrap_date 2023-11-16
 
 # Only the specified arches will use bootstrap binaries.
 # NOTE: Those binaries used to be uploaded with every new release, but that was
@@ -44,9 +44,10 @@ ExclusiveArch:  %{rust_arches}
 
 # We need CRT files for *-wasi targets, at least as new as the commit in
 # src/ci/docker/host-x86_64/dist-various-2/build-wasi-toolchain.sh
+# (updated per https://github.com/rust-lang/rust/pull/96907)
 %global wasi_libc_url https://github.com/WebAssembly/wasi-libc
-#global wasi_libc_ref wasi-sdk-21
+#global wasi_libc_ref wasi-sdk-20
-%global wasi_libc_ref 03b228e46bb02fcc5927253e1b8ad715072b1ae4
+%global wasi_libc_ref bd950eb128bff337153de217b11270f948d04bb4
 %global wasi_libc_name wasi-libc-%{wasi_libc_ref}
 %global wasi_libc_source %{wasi_libc_url}/archive/%{wasi_libc_ref}/%{wasi_libc_name}.tar.gz
 %global wasi_libc_dir %{_builddir}/%{wasi_libc_name}
@@ -62,7 +63,7 @@ ExclusiveArch:  %{rust_arches}
 # We can also choose to just use Rust's bundled LLVM, in case the system LLVM
 # is insufficient.  Rust currently requires LLVM 15.0+.
 %global min_llvm_version 15.0.0
-%global bundled_llvm_version 17.0.6
+%global bundled_llvm_version 17.0.5
 %bcond_with bundled_llvm
 
 # Requires stable libgit2 1.7, and not the next minor soname change.
@@ -84,15 +85,9 @@ ExclusiveArch:  %{rust_arches}
 %endif
 
 %if 0%{?__isa_bits} == 32
-# Reduce rustc's own debuginfo and optimizations to conserve 32-bit memory.
+# Disable PGO on 32-bit to reduce build memory
-# e.g. https://github.com/rust-lang/rust/issues/45854
-%global enable_debuginfo --debuginfo-level=0 --debuginfo-level-std=2
-%global enable_rust_opts --set rust.codegen-units-std=1
 %bcond_with rustc_pgo
 %else
-# Build rustc with full debuginfo, CGU=1, ThinLTO, and PGO.
-%global enable_debuginfo --debuginfo-level=2
-%global enable_rust_opts --set rust.codegen-units=1 --set rust.lto=thin
 %bcond_without rustc_pgo
 %endif
 
@@ -123,18 +118,16 @@ Patch3:         0001-Let-environment-variables-override-some-default-CPUs.patch
 Patch4:         0001-bootstrap-allow-disabling-target-self-contained.patch
 Patch5:         0002-set-an-external-library-path-for-wasm32-wasi.patch
 
-# We don't want to use the bundled library in libsqlite3-sys
+# https://github.com/rust-lang/rust/pull/117982
-Patch6:         rustc-1.76.0-unbundle-sqlite.patch
+Patch6:         0001-bootstrap-only-show-PGO-warnings-when-verbose.patch
 
 ### RHEL-specific patches below ###
 
 # Simple rpm macros for rust-toolset (as opposed to full rust-packaging)
 Source100:      macros.rust-toolset
-Source101:      cargo_vendor.attr
-Source102:      cargo_vendor.prov
 
 # Disable cargo->libgit2->libssh2 on RHEL, as it's not approved for FIPS (rhbz1732949)
-Patch100:       rustc-1.76.0-disable-libssh2.patch
+Patch100:       rustc-1.75.0-disable-libssh2.patch
 
 # Get the Rust triple for any arch.
 %{lua: function rust_triple(arch)
@@ -204,7 +197,6 @@ BuildRequires:  curl-devel
 BuildRequires:  pkgconfig(libcurl)
 BuildRequires:  pkgconfig(liblzma)
 BuildRequires:  pkgconfig(openssl)
-BuildRequires:  pkgconfig(sqlite3)
 BuildRequires:  pkgconfig(zlib)
 
 %if %{without bundled_libgit2}
@@ -594,7 +586,6 @@ mkdir -p src/llvm-project/libunwind/
 %clear_dir vendor/*jemalloc-sys*/jemalloc/
 %clear_dir vendor/libffi-sys*/libffi/
 %clear_dir vendor/libmimalloc-sys*/c_src/mimalloc/
-%clear_dir vendor/libsqlite3-sys*/{sqlite3,sqlcipher}/
 %clear_dir vendor/libssh2-sys*/libssh2/
 %clear_dir vendor/libz-sys*/src/zlib{,-ng}/
 %clear_dir vendor/lzma-sys*/xz-*/
@@ -647,19 +638,27 @@ find -name '*.rs' -type f -perm /111 -exec chmod -v -x '{}' '+'
   print(env)
 end}
 
-# Set up shared environment variables for build/install/check.
+# Set up shared environment variables for build/install/check
-# *_USE_PKG_CONFIG=1 convinces *-sys crates to use the system library.
+%global rust_env %{?rustflags:RUSTFLAGS="%{rustflags}"} %{rustc_target_cpus}
-%global rust_env %{shrink:
+%if %without disabled_libssh2
-  %{?rustflags:RUSTFLAGS="%{rustflags}"}
+# convince libssh2-sys to use the distro libssh2
-  %{rustc_target_cpus}
+%global rust_env %{?rust_env} LIBSSH2_SYS_USE_PKG_CONFIG=1
-  LIBSQLITE3_SYS_USE_PKG_CONFIG=1
+%endif
-  %{!?with_disabled_libssh2:LIBSSH2_SYS_USE_PKG_CONFIG=1}
+%global export_rust_env %{?rust_env:export %{rust_env}}
-}
-%global export_rust_env export %{rust_env}
 
 %build
 %{export_rust_env}
 
+%ifarch %{arm} %{ix86}
+# full debuginfo and compiler opts are exhausting memory; just do libstd for now
+# https://github.com/rust-lang/rust/issues/45854
+%define enable_debuginfo --debuginfo-level=0 --debuginfo-level-std=2
+%define enable_rust_opts --set rust.codegen-units-std=1
+%else
+%define enable_debuginfo --debuginfo-level=2
+%define enable_rust_opts --set rust.codegen-units=1 --set rust.lto=thin
+%endif
+
 # Some builders have relatively little memory for their CPU count.
 # At least 2GB per CPU is a good rule of thumb for building rustc.
 ncpus=$(/usr/bin/getconf _NPROCESSORS_ONLN)
@@ -850,8 +849,6 @@ rm -f %{buildroot}%{rustlibdir}/%{rust_triple}/bin/rust-ll*
 %if 0%{?rhel}
 # This allows users to build packages using Rust Toolset.
 %{__install} -D -m 644 %{S:100} %{buildroot}%{rpmmacrodir}/macros.rust-toolset
-%{__install} -D -m 644 %{S:101} %{buildroot}%{_fileattrsdir}/cargo_vendor.attr
-%{__install} -D -m 755 %{S:102} %{buildroot}%{_rpmconfigdir}/cargo_vendor.prov
 %endif
 
 
@@ -1033,16 +1030,10 @@ rm -rf "./build/%{rust_triple}/stage2-tools/%{rust_triple}/cit/"
 %if 0%{?rhel}
 %files toolset
 %{rpmmacrodir}/macros.rust-toolset
-%{_fileattrsdir}/cargo_vendor.attr
-%{_rpmconfigdir}/cargo_vendor.prov
 %endif
 
 
 %changelog
-* Tue Apr 16 2024 Josh Stone <jistone@redhat.com> - 1.76.0-1
-- Update to 1.76.0.
-- Sync rust-toolset macros to rust-packaging v25.2
-
 * Fri Jan 05 2024 Josh Stone <jistone@redhat.com> - 1.75.0-1
 - Update to 1.75.0.