From 4418da21bd05d610a3450f4aa75481785ca372a0 Mon Sep 17 00:00:00 2001
From: V3n3RiX <venerix@koprulu.sector>
Date: Thu, 27 Feb 2025 19:26:40 +0000
Subject: gentoo auto-resync : 27:02:2025 - 19:26:39

---
 dev-lang/rust/Manifest                        |   7 +-
 dev-lang/rust/rust-1.86.0_beta20250218.ebuild | 806 -------------------------
 dev-lang/rust/rust-1.86.0_beta20250225.ebuild | 807 ++++++++++++++++++++++++++
 dev-lang/rust/rust-9999.ebuild                |   1 +
 4 files changed, 813 insertions(+), 808 deletions(-)
 delete mode 100644 dev-lang/rust/rust-1.86.0_beta20250218.ebuild
 create mode 100644 dev-lang/rust/rust-1.86.0_beta20250225.ebuild

(limited to 'dev-lang/rust')

diff --git a/dev-lang/rust/Manifest b/dev-lang/rust/Manifest
index 09bd6db453fd..1124856e34ce 100644
--- a/dev-lang/rust/Manifest
+++ b/dev-lang/rust/Manifest
@@ -21,6 +21,7 @@ AUX 1.84.1-fix-cross.patch 1406 BLAKE2B 3af3e4d4c52c37a4580f1ec56d2b79f2751ad017
 AUX 1.85.0-cross-compile-libz.patch 1130 BLAKE2B 145695a50ccf2db6f8060bf313924e4b337b63f4d1d8f49c7da014f9a3c9ab3849b7acdd6f0defd75f88852eafe5986019371b09c8305f65280883b7be7d9c70 SHA512 2c27d13ffb62143b1019b7568c7d1187744d9a4d01390d8dfb0d27fe758506dad317fafe0a12eeb13e785885c006cb4e72db104ef72229f51c276a3bfdf2bc9e
 AUX 1.85.0-musl-dynamic-linking.patch 15350 BLAKE2B 86704d0f99630153c10454d9776e8097f74e56abe69fcb71e6e9b62e8d8ee003cab981c9d2b719e4290249aece6b3b0fd547727ab89516500bfba18a8ffbb58b SHA512 31fec41ddd6c84988f22869ab7b81adc92ca5ebdce2f62ec4ddb6ed91e0bedcf3e34ddbd8a0725fa2ec50b84d0f87444c1beceaefb301f34864461ae071691f6
 DIST rust-1.86.0_beta20250218-vendor-in-install-phase.patch 22553 BLAKE2B a99d31c5ceeec4c74453849d87c35969ad3924cff48861a1c3009c78ac59440c8a1bd3088f0dace262558cff27197a932f3c81872d4ede4f3c5a03c27e6dc316 SHA512 228c551b7dfd4b43e3b34a97c7d55121cfc15f4c999c15e8ee2a30b41757099ae493148aaedf86f5e4e4143e26ae02464ab725162f1dcad68a0315cfadf3ab8a
+DIST rust-1.86.0_beta20250225-vendor-in-install-phase.patch 22527 BLAKE2B 79c800e3ea5eef31e5603a6f3ec99606065f1c383751a989c9835490c2717620a71dc5bdc3613fbcc30ef45862090a8bc5049ba9ae6af861b20159a9cee96682 SHA512 cbfdcc55759c60b575808f2c6ec245d2ea271558295ea4ff4013933bf26252e00017422c286023a6f7089f2edcfe90c49cb06a07c4c41f2bf40e20c8dc85a604
 DIST rustc-1.71.1-src.tar.xz 151983068 BLAKE2B 3dfdbc246feb84a79ae94c2de978c5585ee06cf6b683d2245869b62e28f7c79f89cc589f5431537713bf088236a0b824acefc1b68e418e9eb72e1eea98054e3f SHA512 fd0e5a16bdbeb539184513583089e55f681cb772810df357b6b1464853f7022ac02edab3dd155b2262ed0047e2a25dea3808dd078dcdfce9d399384465009db4
 DIST rustc-1.71.1-src.tar.xz.asc 801 BLAKE2B a88c073a70552d73e2d7695eceabdaa478f34501b7271fabf7f4a09f3efa545181f34353e45776b05918e6aeba88adb02f9731454f7085a7abf1602fc6589983 SHA512 9dd0406cf22f1daa7fcfd015fc1c6f8d36586aa99bf14c1491ee464c1f892ab759feb83e8b55b64713170fb777fdbe038fb5fd01a59c911b6599223baaba0677
 DIST rustc-1.74.1-src.tar.xz 155968724 BLAKE2B e05f2379ac94b286f85791a138e1928e5b5b5a7749f0981d82c40c2a12860f55bf96bb2f0e924e35a0f8b2447b13052d38adea909aaa3199105787bb5a4861b3 SHA512 14c7e7ed2f38ab60299d8c7d41d78f042b6b57ef822d577b5138e60bdde31cf141eccd4332a25bc5da3d58eb5313d63c1448b5dfe9e11b8055bb8ea133a9038d
@@ -49,6 +50,8 @@ DIST rustc-1.85.0-src.tar.xz 274011696 BLAKE2B 9cb1c5b9fa9b0ee8a3150d634b58f4d14
 DIST rustc-1.85.0-src.tar.xz.asc 801 BLAKE2B 8168c984f69356898f7a51199f3250a51c58a6512463cd5011acdff8c63754ba196bb050dba95b73d37c7e6d4bbcd3d1cb471d067a6615cd81b8969394e3539a SHA512 b96fffde7eb3d98cca6abe44e671fd4752416357ab3180d2a09a60fc022ac03d10e64ae285ef6276b8d881d6154fd7398f46666f5a2ea6f3023ea38fd543f59e
 DIST rustc-1.86.0_beta20250218-src.tar.xz 280540916 BLAKE2B ed3fe1b1ce392ffd264dd78c00e43b478d14c6bf9bc7120aa484c46a72ff904abf3ed1d1d539828a22071997860d186ecf9d5d4abed25f14cbbe0068dee06a5e SHA512 bd8982d6adee08e0b39a58786741594e0c651cd107818178aca0ded3c3272239be3c4f0f6b617679bc8b1cea67e4b5924d6bb1ae8a9d5903fb77245dd8ac528b
 DIST rustc-1.86.0_beta20250218-src.tar.xz.asc 801 BLAKE2B 8a7c489f9087342074262c64089922b97e886aa6d3f89c2a0ed1185e084c8bed07d57c363608f26536ca884d764aa43e3ade214ab4fe4e67e9c6d7e1338e93aa SHA512 d34b536200fdb4c7e85af005b1753ce88f32a1faa418a01de21de992679d744ec396fd0f9aaaf851569de1f4f06f14a6481b68b1378659b3475d30818421ea3a
+DIST rustc-1.86.0_beta20250225-src.tar.xz 280546668 BLAKE2B ea1956a83175a2cda21b6ad1ead38d8d0f6c95559d2e329bf0e4ca13d0ff6562d017d5bffbb57f9d6d232b1f87f3d190718bc0b90c6938b06763526fac083ada SHA512 782fafa305b8766db3d23796014a5897470988c9447baf4bee35d98b90382b5a727d0aecc3dabbdab0f82b6d862def8be23d8a6cf3d98cc96f18cf4a2bc38f66
+DIST rustc-1.86.0_beta20250225-src.tar.xz.asc 801 BLAKE2B 517f8d88edc1ef4ebd25d66a1be4f37718bfa361f8ae1001aca85ba626dacfef6ae27a327f33dd1ae9db7e57a91eab2d8bbfe910b5789df0998dd18026c75726 SHA512 50e3c85b7c6a7f42e094e63f4ee554d2d944a8e153ab5dbd1c2a09a1f44c6ee53cb1c4985080a373c5cb09681bc5b987e8a8e2f56a0a0053ccea99f22dc92986
 EBUILD rust-1.71.1-r101.ebuild 22398 BLAKE2B 16a62b7042971b2a653e078cadc701e597f8cdfdc0d9381502e1a6763c7752c86d735e7ae5a6c69630a21f3b0b964d7f291640458dff0055d052a0ca0e99ebf0 SHA512 d58ebb8d7c8bd40ad91416993fb0aae63b60406b2ac7a21c2b434d45ccc2cfa38090e311084336580827a1e5d545deb46545c8df4b2b389cdbeac2564eb09c79
 EBUILD rust-1.74.1-r101.ebuild 38047 BLAKE2B 2c7e55c4b16b4ac990423970942b0d0344b2a41e9b68590112a734a7170a824054066da09315c9e647ba76c5f7fb6d192320113705c10bd789e625df70b60d5c SHA512 e3683ca91e3efbe3ca7bd3611834d1d727c5b13a4de1b5f2f34f8fa6780af2d96fc1a48dde6d2eb1d38910bd0eba037990a9785b5eedd847a22e60f1792bb0e2
 EBUILD rust-1.75.0-r101.ebuild 23941 BLAKE2B 1a19ef8ee5b2dbbf2f5758a3b249ad50753e0e69a8b45f008f3ba588627a9ca0760254ed9d7e5594b3a18931f73b70e3f5082a32aa05f627c0bcaeb2bc2eb138 SHA512 8caa84f0c16a39a3c67a9eda9d00e963a20c7c20e9b3dc71dcf164dd7528624adb913b22c3b9e228ebd28cfc6d8c8080bb0d5223ef68e9cb5ba3074d84f68ba8
@@ -64,6 +67,6 @@ EBUILD rust-1.84.1-r1.ebuild 22227 BLAKE2B 3b8bc2185e832506e142f291659b42ba8ac0d
 EBUILD rust-1.85.0-r1.ebuild 25359 BLAKE2B 47f020237a54c20c997ee279dbec95adf7b03c36624c8fc5ffc93a5e40525a57e0edc2ec0cf4ca30aa71560784bec64237694b58060e91897a7ca9e50fd8b75e SHA512 d6e901e241114911d80ecf9f04598b18e81dec53d12c50ae77afdab4c79998dcb92ecd463448c4415a1039f0f8bc61198f56d18ae69d0d34436b82fd1433edaf
 EBUILD rust-1.85.0.ebuild 25310 BLAKE2B f58fed6c72cd54bcc608695aa67554ab8def3887408f7a7b17ad5e36a7fb3923f196f5b072e788edef11ab5ea7dc8a7b1301799ca29db44649615af38d686844 SHA512 2d3f1f627a4aa666034dff412db54d3e75854769c9bdb04827b306cef8a309200befcf547b12e66b25b6cb9c0b0f7a385a98b92e8ad7262cc2b61b1f22529f8b
 EBUILD rust-1.86.0_beta20250218-r1.ebuild 25723 BLAKE2B 28a40759c53e52142d47bc9a1b4b25f8801c3a88339ffcbc345f5175ccab74262126c7671b2be4ca699ef4c9ab29166771b9997cf3d4dff840c59aed48b4fb28 SHA512 eed6f384a9d6a223367a4b0b0d92d3b4a01d29224bdf56648e402028cd3a4ac11909d35be5f72d14ddc0e089b2bc389d03a598e03d1670dc7e59a6b25661640d
-EBUILD rust-1.86.0_beta20250218.ebuild 25674 BLAKE2B 5dd040b8ffb35b10f0e64318a627274617476458b98c5413afc0ffae2a03c92c93efc64aceaac5aca5f0e6bb99efb4f00e1471df50310a45b50bda25556ebc0f SHA512 0f9e229acd11cd96b5156ca2f209c2acc7e2e0af9301123068c519beb0396fe05d582f0b0e1c81618753e9e67455293d1223cce916c12a96699cea7c7c7edd8d
-EBUILD rust-9999.ebuild 25359 BLAKE2B c2c4d419e950080fe2186de0d5c574c0a2d46000892ad7694b84a118ff72cae8f4b57d41d19262666b76d150762f9becd23a50c136c3e1786ccadd730f324b1e SHA512 61e2dda16d6e37a140b804da01412da772ef8a3a365d015b5c6e26478db2c813d12edb3a06cf63520a5ed80676dd11a0ae96e4b023de7f6fb22dbd100c5adf03
+EBUILD rust-1.86.0_beta20250225.ebuild 25724 BLAKE2B af803ea989b27248fcbf9abfc732167cc3517f28c4ffcb508d9f4ed27d03f2ba532014630e3a65b237454c67e3ca59d744f7ab389df4cd47a3af4ea0c15c1cad SHA512 a57883420023f44fc66fea988105580e6869c7ad4287456b12c67bf4bd39d373e5e382adb5e372ed748126039a2161ac6055d6580f8eaef347eacd6e8262b992
+EBUILD rust-9999.ebuild 25383 BLAKE2B 9f91287f2811ae43470bf728bafd545920d4ce07ac3a58825d5e048c895744810b9ac7ebdbbfa6d5ba372552e4dd7468cd0035945143e73b983ace7489ef4cc3 SHA512 62f103ee68203346293d60fc43bf7eb02322d81d772f06f56d0dabaa8f73d2ea98d3c11d2602c5a79e8288939ecdebfcf8443bcb08ddb102d45d773ad19da62b
 MISC metadata.xml 1841 BLAKE2B 48a8167ae44a7f4892b917895298627ac920af6c488180980e65bdeec53b650455fc6d7dddad0a7a8257d473080082377fb6b6df6a834b294b6e6485e6784a1e SHA512 1f5fd792b65ccac89a61233004980d9f7cbaecea5d05f35f9cc2dc9cab4e3ccfcd46828e88770a1b8ba5ca23064b6a75eea72a0b32bcce52bb399b85ac95f755
diff --git a/dev-lang/rust/rust-1.86.0_beta20250218.ebuild b/dev-lang/rust/rust-1.86.0_beta20250218.ebuild
deleted file mode 100644
index c23793c89bc7..000000000000
--- a/dev-lang/rust/rust-1.86.0_beta20250218.ebuild
+++ /dev/null
@@ -1,806 +0,0 @@
-# Copyright 1999-2025 Gentoo Authors
-# Distributed under the terms of the GNU General Public License v2
-
-EAPI=8
-
-LLVM_COMPAT=( 19 )
-PYTHON_COMPAT=( python3_{10..13} )
-
-RUST_MAX_VER=${PV%%_*}
-if [[ ${PV} == *9999* ]]; then
-	RUST_MIN_VER="1.86.0" # Update this as new `beta` releases come out.
-elif [[ ${PV} == *beta* ]]; then
-	# Enforce that `beta` is built from `stable`.
-	# While uncommon it is possible for feature changes within `beta` to result
-	# in an older snapshot being unable to build a newer one without modifying the sources.
-	# 'stable' releases should always be able to build a beta snapshot so just use those.
-	RUST_MAX_VER="$(ver_cut 1).$(($(ver_cut 2) - 1)).0"
-	RUST_MIN_VER="$(ver_cut 1).$(($(ver_cut 2) - 1)).0"
-else
-	RUST_MIN_VER="$(ver_cut 1).$(($(ver_cut 2) - 1)).0"
-fi
-
-inherit check-reqs estack flag-o-matic llvm-r1 multiprocessing optfeature \
-	multilib multilib-build python-any-r1 rust rust-toolchain toolchain-funcs verify-sig
-
-if [[ ${PV} = *9999* ]]; then
-	inherit git-r3
-	EGIT_REPO_URI="https://github.com/rust-lang/rust.git"
-	EGIT_SUBMODULES=(
-		"*"
-		"-src/gcc"
-	)
-elif [[ ${PV} == *beta* ]]; then
-	# Identify the snapshot date of the beta release:
-	# curl -Ls static.rust-lang.org/dist/channel-rust-beta.toml | grep beta-src.tar.xz
-	betaver=${PV//*beta}
-	BETA_SNAPSHOT="${betaver:0:4}-${betaver:4:2}-${betaver:6:2}"
-	MY_P="rustc-beta"
-	SRC_URI="https://static.rust-lang.org/dist/${BETA_SNAPSHOT}/rustc-beta-src.tar.xz -> rustc-${PV}-src.tar.xz
-		verify-sig? ( https://static.rust-lang.org/dist/${BETA_SNAPSHOT}/rustc-beta-src.tar.xz.asc
-			-> rustc-${PV}-src.tar.xz.asc )
-		https://github.com/rust-lang/rust/pull/137020.patch -> ${P}-vendor-in-install-phase.patch
-	"
-	S="${WORKDIR}/${MY_P}-src"
-else
-	MY_P="rustc-${PV}"
-	SRC_URI="https://static.rust-lang.org/dist/${MY_P}-src.tar.xz
-		verify-sig? ( https://static.rust-lang.org/dist/${MY_P}-src.tar.xz.asc )
-	"
-	S="${WORKDIR}/${MY_P}-src"
-	KEYWORDS="~amd64 ~arm ~arm64 ~loong ~mips ~ppc ~ppc64 ~riscv ~sparc ~x86"
-fi
-
-DESCRIPTION="Systems programming language originally developed by Mozilla"
-HOMEPAGE="https://www.rust-lang.org/"
-
-# keep in sync with llvm ebuild of the same version as bundled one.
-ALL_LLVM_TARGETS=( AArch64 AMDGPU ARC ARM AVR BPF CSKY DirectX Hexagon Lanai
-	LoongArch M68k Mips MSP430 NVPTX PowerPC RISCV Sparc SPIRV SystemZ VE
-	WebAssembly X86 XCore Xtensa )
-ALL_LLVM_TARGETS=( "${ALL_LLVM_TARGETS[@]/#/llvm_targets_}" )
-LLVM_TARGET_USEDEPS=${ALL_LLVM_TARGETS[@]/%/(-)?}
-
-# https://github.com/rust-lang/llvm-project/blob/rustc-1.84.0/llvm/CMakeLists.txt
-_ALL_RUST_EXPERIMENTAL_TARGETS=( ARC CSKY DirectX M68k SPIRV Xtensa )
-declare -A ALL_RUST_EXPERIMENTAL_TARGETS
-for _x in "${_ALL_RUST_EXPERIMENTAL_TARGETS[@]}"; do
-	ALL_RUST_EXPERIMENTAL_TARGETS["llvm_targets_${_x}"]=0
-done
-
-LICENSE="|| ( MIT Apache-2.0 ) BSD BSD-1 BSD-2 BSD-4"
-SLOT="${PV%%_*}" # Beta releases get to share the same SLOT as the eventual stable
-
-IUSE="big-endian clippy cpu_flags_x86_sse2 debug dist doc llvm-libunwind lto rustfmt rust-analyzer rust-src system-llvm test wasm ${ALL_LLVM_TARGETS[*]}"
-
-if [[ ${PV} = *9999* ]]; then
-	# These USE flags require nightly rust
-	IUSE+=" miri"
-fi
-
-LLVM_DEPEND=()
-# splitting usedeps needed to avoid CI/pkgcheck's UncheckableDep limitation
-for _x in "${ALL_LLVM_TARGETS[@]}"; do
-	LLVM_DEPEND+=( "	${_x}? ( $(llvm_gen_dep "llvm-core/llvm:\${LLVM_SLOT}[${_x}]") )" )
-	if [[ -v ALL_RUST_EXPERIMENTAL_TARGETS["${_x}"] ]] ; then
-		ALL_RUST_EXPERIMENTAL_TARGETS["${_x}"]=1
-	fi
-done
-LLVM_DEPEND+=( "	wasm? ( $(llvm_gen_dep 'llvm-core/lld:${LLVM_SLOT}') )" )
-LLVM_DEPEND+=( "	$(llvm_gen_dep 'llvm-core/llvm:${LLVM_SLOT}')" )
-
-BDEPEND="${PYTHON_DEPS}
-	app-eselect/eselect-rust
-	|| (
-		>=sys-devel/gcc-4.7[cxx]
-		>=llvm-core/clang-3.5
-	)
-	!system-llvm? (
-		>=dev-build/cmake-3.13.4
-		app-alternatives/ninja
-	)
-	test? ( dev-debug/gdb )
-	verify-sig? ( sec-keys/openpgp-keys-rust )
-"
-
-DEPEND="
-	>=app-arch/xz-utils-5.2
-	net-misc/curl:=[http2,ssl]
-	sys-libs/zlib:=
-	dev-libs/openssl:0=
-	system-llvm? (
-		${LLVM_DEPEND[*]}
-		llvm-libunwind? ( llvm-runtimes/libunwind:= )
-	)
-	!system-llvm? (
-		!llvm-libunwind? (
-			elibc_musl? ( sys-libs/libunwind:= )
-		)
-	)
-"
-
-RDEPEND="${DEPEND}
-	app-eselect/eselect-rust
-	dev-lang/rust-common
-	sys-apps/lsb-release
-	!dev-lang/rust:stable
-	!dev-lang/rust-bin:stable
-"
-
-REQUIRED_USE="|| ( ${ALL_LLVM_TARGETS[*]} )
-	rust-analyzer? ( rust-src )
-	test? ( ${ALL_LLVM_TARGETS[*]} )
-	wasm? ( llvm_targets_WebAssembly )
-	x86? ( cpu_flags_x86_sse2 )
-"
-
-# we don't use cmake.eclass, but can get a warning
-CMAKE_WARN_UNUSED_CLI=no
-
-QA_FLAGS_IGNORED="
-	usr/lib/${PN}/${SLOT}/bin/.*
-	usr/lib/${PN}/${SLOT}/libexec/.*
-	usr/lib/${PN}/${SLOT}/lib/lib.*.so
-	usr/lib/${PN}/${SLOT}/lib/rustlib/.*/bin/.*
-	usr/lib/${PN}/${SLOT}/lib/rustlib/.*/lib/lib.*.so
-"
-
-QA_SONAME="
-	usr/lib/${PN}/${SLOT}/lib/lib.*.so.*
-	usr/lib/${PN}/${SLOT}/lib/rustlib/.*/lib/lib.*.so
-"
-
-QA_PRESTRIPPED="
-	usr/lib/${PN}/${SLOT}/lib/rustlib/.*/bin/rust-llvm-dwp
-	usr/lib/${PN}/${SLOT}/lib/rustlib/.*/lib/self-contained/crtn.o
-"
-
-# An rmeta file is custom binary format that contains the metadata for the crate.
-# rmeta files do not support linking, since they do not contain compiled object files.
-# so we can safely silence the warning for this QA check.
-QA_EXECSTACK="usr/lib/${PN}/${SLOT}/lib/rustlib/*/lib*.rlib:lib.rmeta"
-
-# causes double bootstrap
-RESTRICT="test"
-
-VERIFY_SIG_OPENPGP_KEY_PATH=/usr/share/openpgp-keys/rust.asc
-
-PATCHES=(
-	"${DISTDIR}"/${P}-vendor-in-install-phase.patch
-	"${FILESDIR}"/1.85.0-cross-compile-libz.patch
-	"${FILESDIR}"/1.67.0-doc-wasm.patch
-)
-
-clear_vendor_checksums() {
-	sed -i 's/\("files":{\)[^}]*/\1/' "vendor/${1}/.cargo-checksum.json" || die
-}
-
-toml_usex() {
-	usex "${1}" true false
-}
-
-src_unpack() {
-	if [[ ${PV} = *9999* ]]; then
-		git-r3_src_unpack
-		mkdir "${S}/.cargo" || die # The vendor script has a check for .cargo/config{,.toml}
-		touch "${S}/.cargo/config.toml" || die
-		local rust_stage0_root="$(${RUSTC} --print sysroot || die "Can't determine rust's sysroot")"
-		local rust_build=""
-		local rust_host=""
-		# Configure vendor to use the portage-provided toolchain. This prevents it from
-		# attempting to fetch a `beta` toolchain from the internet.
-		cat <<- _EOF_ > "${T}/vendor-config.toml"
-			[build]
-			build = "$(rust_abi "${CBUILD}")"
-			host = ["$(rust_abi "${CHOST}")"]
-			target = ["$(rust_abi "${CHOST}")"]
-			cargo = "${rust_stage0_root}/bin/cargo"
-			rustc = "${rust_stage0_root}/bin/rustc"
-			rustfmt = "${rust_stage0_root}/bin/rustfmt"
-		_EOF_
-		# We're using git sources so we need to run the Vendor script
-		# to ensure that all dependencies are present and up-to-date
-		mkdir "${S}/vendor" || die
-		# This also compiles the 'build helper', there's no way to avoid this.
-		${EPYTHON} "${S}"/x.py vendor -vvv --config="${T}"/vendor-config.toml -j$(makeopts_jobs) ||
-			die "Failed to vendor dependencies"
-		# TODO: This has to be generated somehow, this is from a 1.84.x tarball I had lying around.
-		cat <<- _EOF_ > "${S}/.cargo/config.toml"
-			[source.crates-io]
-			replace-with = "vendored-sources"
-
-			[source."git+https://github.com/rust-lang/team"]
-			git = "https://github.com/rust-lang/team"
-			replace-with = "vendored-sources"
-
-			[source.vendored-sources]
-			directory = "vendor"
-		_EOF_
-	else
-		# Until upstream merge this patch we can't use the default verify-sig_src_unpack
-		if use verify-sig; then
-			verify-sig_verify_detached "${DISTDIR}/rustc-${PV}-src.tar.xz" \
-				"${DISTDIR}/rustc-${PV}-src.tar.xz.asc"
-		fi
-		default_src_unpack
-	fi
-}
-
-pre_build_checks() {
-	local M=9216
-	# multiply requirements by 1.3 if we are doing x86-multilib
-	if use amd64; then
-		M=$(( $(usex abi_x86_32 13 10) * ${M} / 10 ))
-	fi
-	M=$(( $(usex clippy 128 0) + ${M} ))
-	if [[ ${PV} == *9999* ]]; then
-		M=$(( $(usex miri 128 0) + ${M} ))
-	fi
-	M=$(( $(usex rustfmt 256 0) + ${M} ))
-	# add 2G if we compile llvm and 256M per llvm_target
-	if ! use system-llvm; then
-		M=$(( 2048 + ${M} ))
-		local ltarget
-		for ltarget in ${ALL_LLVM_TARGETS[@]}; do
-			M=$(( $(usex ${ltarget} 256 0) + ${M} ))
-		done
-	fi
-	M=$(( $(usex wasm 256 0) + ${M} ))
-	M=$(( $(usex debug 2 1) * ${M} ))
-	eshopts_push -s extglob
-	if is-flagq '-g?(gdb)?([1-9])'; then
-		M=$(( 15 * ${M} / 10 ))
-	fi
-	eshopts_pop
-	M=$(( $(usex doc 256 0) + ${M} ))
-	CHECKREQS_DISK_BUILD=${M}M check-reqs_pkg_${EBUILD_PHASE}
-}
-
-llvm_check_deps() {
-	has_version -r "llvm-core/llvm:${LLVM_SLOT}[${LLVM_TARGET_USEDEPS// /,}]"
-}
-
-# Is LLVM being linked against libc++?
-is_libcxx_linked() {
-	local code='#include <ciso646>
-#if defined(_LIBCPP_VERSION)
-	HAVE_LIBCXX
-#endif
-'
-	local out=$($(tc-getCXX) ${CXXFLAGS} ${CPPFLAGS} -x c++ -E -P - <<<"${code}") || return 1
-	[[ ${out} == *HAVE_LIBCXX* ]]
-}
-
-pkg_pretend() {
-	pre_build_checks
-}
-
-pkg_setup() {
-	pre_build_checks
-	python-any-r1_pkg_setup
-
-	export LIBGIT2_NO_PKG_CONFIG=1 #749381
-	if tc-is-cross-compiler; then
-		use system-llvm && die "USE=system-llvm not allowed when cross-compiling"
-		local cross_llvm_target="$(llvm_tuple_to_target "${CBUILD}")"
-		use "llvm_targets_${cross_llvm_target}" || \
-			die "Must enable LLVM_TARGETS=${cross_llvm_target} matching CBUILD=${CBUILD} when cross-compiling"
-	fi
-
-	rust_pkg_setup
-
-	if use system-llvm; then
-		llvm-r1_pkg_setup
-
-		local llvm_config="$(get_llvm_prefix)/bin/llvm-config"
-		export LLVM_LINK_SHARED=1
-		export RUSTFLAGS="${RUSTFLAGS} -Lnative=$("${llvm_config}" --libdir)"
-	fi
-}
-
-src_prepare() {
-	if [[ ${PV} = *9999* ]]; then
-		# We need to update / generate lockfiles for the workspace
-		${CARGO} generate-lockfile --offline
-
-	fi
-	# Rust baselines to Pentium4 on x86, this patch lowers the baseline to i586 when sse2 is not set.
-	if use x86; then
-		if ! use cpu_flags_x86_sse2; then
-			eapply "${FILESDIR}/1.82.0-i586-baseline.patch"
-			#grep -rl cmd.args.push\(\"-march=i686\" . | xargs sed  -i 's/march=i686/-march=i586/g' || die
-		fi
-	fi
-
-	default
-}
-
-src_configure() {
-	if tc-is-cross-compiler; then
-		export PKG_CONFIG_ALLOW_CROSS=1
-		export PKG_CONFIG_PATH="${ESYSROOT}/usr/$(get_libdir)/pkgconfig"
-		export OPENSSL_INCLUDE_DIR="${ESYSROOT}/usr/include"
-		export OPENSSL_LIB_DIR="${ESYSROOT}/usr/$(get_libdir)"
-	fi
-
-	filter-lto # https://bugs.gentoo.org/862109 https://bugs.gentoo.org/866231
-
-	local rust_target="" rust_targets="" arch_cflags
-
-	# Collect rust target names to compile standard libs for all ABIs.
-	for v in $(multilib_get_enabled_abi_pairs); do
-		rust_targets+=",\"$(rust_abi $(get_abi_CHOST ${v##*.}))\""
-	done
-	if use wasm; then
-		rust_targets+=",\"wasm32-unknown-unknown\""
-		if use system-llvm; then
-			# un-hardcode rust-lld linker for this target
-			# https://bugs.gentoo.org/715348
-			sed -i '/linker:/ s/rust-lld/wasm-ld/' compiler/rustc_target/src/spec/base/wasm.rs || die
-		fi
-	fi
-	rust_targets="${rust_targets#,}"
-
-	# cargo and rustdoc are mandatory and should always be included
-	local tools='"cargo","rustdoc"'
-	use clippy && tools+=',"clippy"'
-	use rustfmt && tools+=',"rustfmt"'
-	use rust-analyzer && tools+=',"rust-analyzer","rust-analyzer-proc-macro-srv"'
-	use rust-src && tools+=',"src"'
-
-	if [[ ${PV} == *9999* ]]; then
-		use miri && tools+=',"miri"'
-	fi
-
-	local rust_stage0_root="$(${RUSTC} --print sysroot || die "Can't determine rust's sysroot")"
-	# in case of prefix it will be already prefixed, as --print sysroot returns full path
-	[[ -d ${rust_stage0_root} ]] || die "${rust_stage0_root} is not a directory"
-
-	rust_target="$(rust_abi)"
-	rust_build="$(rust_abi "${CBUILD}")"
-	rust_host="$(rust_abi "${CHOST}")"
-
-	RUST_EXPERIMENTAL_TARGETS=()
-	for _x in "${!ALL_RUST_EXPERIMENTAL_TARGETS[@]}"; do
-		if [[ ${ALL_RUST_EXPERIMENTAL_TARGETS[${_x}]} == 1 ]] && use ${_x} ; then
-			RUST_EXPERIMENTAL_TARGETS+=( ${_x#llvm_targets_} )
-		fi
-	done
-	RUST_EXPERIMENTAL_TARGETS=${RUST_EXPERIMENTAL_TARGETS[@]}
-
-	local cm_btype="$(usex debug DEBUG RELEASE)"
-	local build_channel
-	local build_miri="false"
-	case "${PV}" in
-		*9999*)
-			build_channel="nightly"
-			;;
-		*beta*)
-			build_channel="beta"
-			;;
-		*)
-			build_channel="stable"
-			;;
-	esac
-	cat <<- _EOF_ > "${S}"/config.toml
-		# https://github.com/rust-lang/rust/issues/135358 (bug #947897)
-		profile = "dist"
-		[llvm]
-		download-ci-llvm = false
-		optimize = $(toml_usex !debug)
-		release-debuginfo = $(toml_usex debug)
-		assertions = $(toml_usex debug)
-		ninja = true
-		targets = "${LLVM_TARGETS// /;}"
-		experimental-targets = "${RUST_EXPERIMENTAL_TARGETS// /;}"
-		link-shared = $(toml_usex system-llvm)
-		$(if is_libcxx_linked; then
-			# https://bugs.gentoo.org/732632
-			echo "use-libcxx = true"
-			echo "static-libstdcpp = false"
-		fi)
-		$(case "${rust_target}" in
-			i586-*-linux-*)
-				# https://github.com/rust-lang/rust/issues/93059
-				echo 'cflags = "-fcf-protection=none"'
-				echo 'cxxflags = "-fcf-protection=none"'
-				echo 'ldflags = "-fcf-protection=none"'
-				;;
-			*)
-				;;
-		esac)
-		enable-warnings = false
-		[llvm.build-config]
-		CMAKE_VERBOSE_MAKEFILE = "ON"
-		$(if ! tc-is-cross-compiler; then
-			# When cross-compiling, LLVM is compiled twice, once for host and
-			# once for target.  Unfortunately, this build configuration applies
-			# to both, which means any flags applicable to one target but not
-			# the other will break.  Conditionally disable respecting user
-			# flags when cross-compiling.
-			echo "CMAKE_C_FLAGS_${cm_btype} = \"${CFLAGS}\""
-			echo "CMAKE_CXX_FLAGS_${cm_btype} = \"${CXXFLAGS}\""
-			echo "CMAKE_EXE_LINKER_FLAGS_${cm_btype} = \"${LDFLAGS}\""
-			echo "CMAKE_MODULE_LINKER_FLAGS_${cm_btype} = \"${LDFLAGS}\""
-			echo "CMAKE_SHARED_LINKER_FLAGS_${cm_btype} = \"${LDFLAGS}\""
-			echo "CMAKE_STATIC_LINKER_FLAGS_${cm_btype} = \"${ARFLAGS}\""
-		fi)
-		[build]
-		build-stage = 2
-		test-stage = 2
-		build = "${rust_build}"
-		host = ["${rust_host}"]
-		target = [${rust_targets}]
-		cargo = "${rust_stage0_root}/bin/cargo"
-		rustc = "${rust_stage0_root}/bin/rustc"
-		rustfmt = "${rust_stage0_root}/bin/rustfmt"
-		docs = $(toml_usex doc)
-		compiler-docs = false
-		submodules = false
-		python = "${EPYTHON}"
-		locked-deps = true
-		vendor = true
-		extended = true
-		tools = [${tools}]
-		verbose = 2
-		sanitizers = false
-		profiler = true
-		cargo-native-static = false
-		[install]
-		prefix = "${EPREFIX}/usr/lib/${PN}/${SLOT}"
-		sysconfdir = "etc"
-		docdir = "share/doc/rust"
-		bindir = "bin"
-		libdir = "lib"
-		mandir = "share/man"
-		[rust]
-		# https://github.com/rust-lang/rust/issues/54872
-		codegen-units-std = 1
-		optimize = true
-		debug = $(toml_usex debug)
-		debug-assertions = $(toml_usex debug)
-		debug-assertions-std = $(toml_usex debug)
-		debuginfo-level = $(usex debug 2 0)
-		debuginfo-level-rustc = $(usex debug 2 0)
-		debuginfo-level-std = $(usex debug 2 0)
-		debuginfo-level-tools = $(usex debug 2 0)
-		debuginfo-level-tests = 0
-		backtrace = true
-		incremental = false
-		$(if ! tc-is-cross-compiler; then
-			echo "default-linker = \"$(tc-getCC)\""
-		fi)
-		channel = "${build_channel}"
-		description = "gentoo"
-		rpath = true
-		verbose-tests = true
-		optimize-tests = $(toml_usex !debug)
-		codegen-tests = true
-		dist-src = false
-		remap-debuginfo = true
-		lld = $(usex system-llvm false $(toml_usex wasm))
-		# only deny warnings if doc+wasm are NOT requested, documenting stage0 wasm std fails without it
-		# https://github.com/rust-lang/rust/issues/74976
-		# https://github.com/rust-lang/rust/issues/76526
-		deny-warnings = $(usex wasm $(usex doc false true) true)
-		backtrace-on-ice = true
-		jemalloc = false
-		# See https://github.com/rust-lang/rust/issues/121124
-		lto = "$(usex lto thin off)"
-		[dist]
-		src-tarball = false
-		compression-formats = ["xz"]
-		compression-profile = "balanced"
-	_EOF_
-
-	for v in $(multilib_get_enabled_abi_pairs); do
-		rust_target=$(rust_abi $(get_abi_CHOST ${v##*.}))
-		arch_cflags="$(get_abi_CFLAGS ${v##*.})"
-
-		export CFLAGS_${rust_target//-/_}="${arch_cflags}"
-
-		cat <<- _EOF_ >> "${S}"/config.toml
-			[target.${rust_target}]
-			ar = "$(tc-getAR)"
-			cc = "$(tc-getCC)"
-			cxx = "$(tc-getCXX)"
-			linker = "$(tc-getCC)"
-			ranlib = "$(tc-getRANLIB)"
-			llvm-libunwind = "$(usex llvm-libunwind $(usex system-llvm system in-tree) no)"
-		_EOF_
-		if use system-llvm; then
-			cat <<- _EOF_ >> "${S}"/config.toml
-				llvm-config = "$(get_llvm_prefix)/bin/llvm-config"
-			_EOF_
-		fi
-		# by default librustc_target/spec/linux_musl_base.rs sets base.crt_static_default = true;
-		# but we patch it and set to false here as well
-		if use elibc_musl; then
-			cat <<- _EOF_ >> "${S}"/config.toml
-				crt-static = false
-				musl-root = "$($(tc-getCC) -print-sysroot)/usr"
-			_EOF_
-		fi
-	done
-	if use wasm; then
-		wasm_target="wasm32-unknown-unknown"
-		export CFLAGS_${wasm_target//-/_}="$(filter-flags '-mcpu*' '-march*' '-mtune*'; echo "$CFLAGS")"
-		cat <<- _EOF_ >> "${S}"/config.toml
-			[target.wasm32-unknown-unknown]
-			linker = "$(usex system-llvm lld rust-lld)"
-			# wasm target does not have profiler_builtins https://bugs.gentoo.org/848483
-			profiler = false
-		_EOF_
-	fi
-
-	if [[ -n ${I_KNOW_WHAT_I_AM_DOING_CROSS} ]]; then # whitespace intentionally shifted below
-	# experimental cross support
-	# discussion: https://bugs.gentoo.org/679878
-	# TODO: c*flags, clang, system-llvm, cargo.eclass target support
-	# it would be much better if we could split out stdlib
-	# complilation to separate ebuild and abuse CATEGORY to
-	# just install to /usr/lib/rustlib/<target>
-
-	# extra targets defined as a bash array
-	# spec format:  <LLVM target>:<rust-target>:<CTARGET>
-	# best place would be /etc/portage/env/dev-lang/rust
-	# Example:
-	# RUST_CROSS_TARGETS=(
-	#	"AArch64:aarch64-unknown-linux-gnu:aarch64-unknown-linux-gnu"
-	# )
-	# no extra hand holding is done, no target transformations, all
-	# values are passed as-is with just basic checks, so it's up to user to supply correct values
-	# valid rust targets can be obtained with
-	# 	rustc --print target-list
-	# matching cross toolchain has to be installed
-	# matching LLVM_TARGET has to be enabled for both rust and llvm (if using system one)
-	# only gcc toolchains installed with crossdev are checked for now.
-
-	# BUG: we can't pass host flags to cross compiler, so just filter for now
-	# BUG: this should be more fine-grained.
-	filter-flags '-mcpu=*' '-march=*' '-mtune=*'
-
-	local cross_target_spec
-	for cross_target_spec in "${RUST_CROSS_TARGETS[@]}";do
-		# extracts first element form <LLVM target>:<rust-target>:<CTARGET>
-		local cross_llvm_target="${cross_target_spec%%:*}"
-		# extracts toolchain triples, <rust-target>:<CTARGET>
-		local cross_triples="${cross_target_spec#*:}"
-		# extracts first element after before : separator
-		local cross_rust_target="${cross_triples%%:*}"
-		# extracts last element after : separator
-		local cross_toolchain="${cross_triples##*:}"
-		use llvm_targets_${cross_llvm_target} || die "need llvm_targets_${cross_llvm_target} target enabled"
-		command -v ${cross_toolchain}-gcc > /dev/null 2>&1 || die "need ${cross_toolchain} cross toolchain"
-
-		cat <<- _EOF_ >> "${S}"/config.toml
-			[target.${cross_rust_target}]
-			ar = "${cross_toolchain}-ar"
-			cc = "${cross_toolchain}-gcc"
-			cxx = "${cross_toolchain}-g++"
-			linker = "${cross_toolchain}-gcc"
-			ranlib = "${cross_toolchain}-ranlib"
-		_EOF_
-		if use system-llvm; then
-			cat <<- _EOF_ >> "${S}"/config.toml
-				llvm-config = "$(get_llvm_prefix)/bin/llvm-config"
-			_EOF_
-		fi
-		if [[ "${cross_toolchain}" == *-musl* ]]; then
-			cat <<- _EOF_ >> "${S}"/config.toml
-				musl-root = "$(${cross_toolchain}-gcc -print-sysroot)/usr"
-			_EOF_
-		fi
-
-		# append cross target to "normal" target list
-		# example 'target = ["powerpc64le-unknown-linux-gnu"]'
-		# becomes 'target = ["powerpc64le-unknown-linux-gnu","aarch64-unknown-linux-gnu"]'
-
-		rust_targets="${rust_targets},\"${cross_rust_target}\""
-		sed -i "/^target = \[/ s#\[.*\]#\[${rust_targets}\]#" config.toml || die
-
-		ewarn
-		ewarn "Enabled ${cross_rust_target} rust target"
-		ewarn "Using ${cross_toolchain} cross toolchain"
-		ewarn
-		if ! has_version -b 'sys-devel/binutils[multitarget]' ; then
-			ewarn "'sys-devel/binutils[multitarget]' is not installed"
-			ewarn "'strip' will be unable to strip cross libraries"
-			ewarn "cross targets will be installed with full debug information"
-			ewarn "enable 'multitarget' USE flag for binutils to be able to strip object files"
-			ewarn
-			ewarn "Alternatively llvm-strip can be used, it supports stripping any target"
-			ewarn "define STRIP=\"llvm-strip\" to use it (experimental)"
-			ewarn
-		fi
-	done
-	fi # I_KNOW_WHAT_I_AM_DOING_CROSS
-
-	einfo "Rust configured with the following flags:"
-	echo
-	echo RUSTFLAGS="\"${RUSTFLAGS}\""
-	echo RUSTFLAGS_BOOTSTRAP="\"${RUSTFLAGS_BOOTSTRAP}\""
-	echo RUSTFLAGS_NOT_BOOTSTRAP="\"${RUSTFLAGS_NOT_BOOTSTRAP}\""
-	echo MAGIC_EXTRA_RUSTFLAGS="\"${MAGIC_EXTRA_RUSTFLAGS}\""
-	env | grep "CARGO_TARGET_.*_RUSTFLAGS="
-	env | grep "CFLAGS_.*"
-	echo
-	einfo "config.toml contents:"
-	cat "${S}"/config.toml || die
-	echo
-}
-
-src_compile() {
-	RUST_BACKTRACE=1 "${EPYTHON}" ./x.py build -vvv --config="${S}"/config.toml -j$(makeopts_jobs) || die
-}
-
-src_test() {
-	# https://rustc-dev-guide.rust-lang.org/tests/intro.html
-
-	# those are basic and codegen tests.
-	local tests=(
-		codegen
-		codegen-units
-		compile-fail
-		incremental
-		mir-opt
-		pretty
-		run-make
-	)
-
-	# fails if llvm is not built with ALL targets.
-	# and known to fail with system llvm sometimes.
-	use system-llvm || tests+=( assembly )
-
-	# fragile/expensive/less important tests
-	# or tests that require extra builds
-	# TODO: instead of skipping, just make some nonfatal.
-	if [[ ${ERUST_RUN_EXTRA_TESTS:-no} != no ]]; then
-		tests+=(
-			rustdoc
-			rustdoc-js
-			rustdoc-js-std
-			rustdoc-ui
-			run-make-fulldeps
-			ui
-			ui-fulldeps
-		)
-	fi
-
-	local i failed=()
-	einfo "rust_src_test: enabled tests ${tests[@]/#/src/test/}"
-	for i in "${tests[@]}"; do
-		local t="src/test/${i}"
-		einfo "rust_src_test: running ${t}"
-		if ! RUST_BACKTRACE=1 "${EPYTHON}" ./x.py test -vv --config="${S}"/config.toml \
-				-j$(makeopts_jobs) --no-doc --no-fail-fast "${t}"
-		then
-				failed+=( "${t}" )
-				eerror "rust_src_test: ${t} failed"
-		fi
-	done
-
-	if [[ ${#failed[@]} -ne 0 ]]; then
-		eerror "rust_src_test: failure summary: ${failed[@]}"
-		die "aborting due to test failures"
-	fi
-}
-
-src_install() {
-	DESTDIR="${D}" "${EPYTHON}" ./x.py install -vv --config="${S}"/config.toml -j$(makeopts_jobs) || die
-
-	docompress /usr/lib/${PN}/${SLOT}/share/man/
-
-	# bug #689562, #689160
-	rm -v "${ED}/usr/lib/${PN}/${SLOT}/etc/bash_completion.d/cargo" || die
-	rmdir -v "${ED}/usr/lib/${PN}/${SLOT}"/etc{/bash_completion.d,} || die
-
-	local symlinks=(
-		cargo
-		rustc
-		rustdoc
-		rust-gdb
-		rust-gdbgui
-		rust-lldb
-	)
-
-	use clippy && symlinks+=( clippy-driver cargo-clippy )
-	if [[ ${PV} = *9999* ]]; then
-		use miri && symlinks+=( miri cargo-miri )
-	fi
-	use rustfmt && symlinks+=( rustfmt cargo-fmt )
-	use rust-analyzer && symlinks+=( rust-analyzer )
-
-	einfo "installing eselect-rust symlinks and paths: ${symlinks[@]}"
-	local i
-	for i in "${symlinks[@]}"; do
-		# we need realpath on /usr/bin/* symlink return version-appended binary path.
-		# so /usr/bin/rustc should point to /usr/lib/rust/<ver>/bin/rustc-<ver>
-		# need to fix eselect-rust to remove this hack.
-		local ver_i="${i}-${PV%%_*}"
-		if [[ -f "${ED}/usr/lib/${PN}/${SLOT}/bin/${i}" ]]; then
-			einfo "Installing ${i} symlink"
-			ln -v "${ED}/usr/lib/${PN}/${SLOT}/bin/${i}" "${ED}/usr/lib/${PN}/${SLOT}/bin/${ver_i}" || die
-		else
-			ewarn "${i} symlink requested, but source file not found"
-			ewarn "please report this"
-		fi
-		dosym "../lib/${PN}/${SLOT}/bin/${ver_i}" "/usr/bin/${ver_i}"
-	done
-
-	# symlinks to switch components to active rust in eselect
-	dosym "${SLOT}/lib" "/usr/lib/${PN}/lib-${SLOT}"
-	use rust-analyzer && dosym "${SLOT}/libexec" "/usr/lib/${PN}/libexec-${SLOT}"
-	dosym "${SLOT}/share/man" "/usr/lib/${PN}/man-${SLOT}"
-	dosym "rust/${SLOT}/lib/rustlib" "/usr/lib/rustlib-${SLOT}"
-	dosym "../../lib/${PN}/${SLOT}/share/doc/rust" "/usr/share/doc/${P}"
-
-	newenvd - "50${P}" <<-_EOF_
-		MANPATH="${EPREFIX}/usr/lib/rust/man-${SLOT}"
-	_EOF_
-
-	rm -rf "${ED}/usr/lib/${PN}/${SLOT}"/*.old || die
-	rm -rf "${ED}/usr/lib/${PN}/${SLOT}/bin"/*.old || die
-	rm -rf "${ED}/usr/lib/${PN}/${SLOT}/doc"/*.old || die
-
-	# note: eselect-rust adds EROOT to all paths below
-	cat <<-_EOF_ > "${T}/provider-${PN}-${SLOT}"
-		/usr/bin/cargo
-		/usr/bin/rustdoc
-		/usr/bin/rust-gdb
-		/usr/bin/rust-gdbgui
-		/usr/bin/rust-lldb
-		/usr/lib/rustlib
-		/usr/lib/rust/lib
-		/usr/lib/rust/man
-		/usr/share/doc/rust
-	_EOF_
-
-	if use clippy; then
-		echo /usr/bin/clippy-driver >> "${T}/provider-${P}"
-		echo /usr/bin/cargo-clippy >> "${T}/provider-${P}"
-	fi
-	if [[ ${SLOT} == *9999* ]] && use miri; then
-		echo /usr/bin/miri >> "${T}/provider-${P}"
-		echo /usr/bin/cargo-miri >> "${T}/provider-${P}"
-	fi
-	if use rustfmt; then
-		echo /usr/bin/rustfmt >> "${T}/provider-${P}"
-		echo /usr/bin/cargo-fmt >> "${T}/provider-${P}"
-	fi
-	if use rust-analyzer; then
-		echo /usr/lib/rust/libexec >> "${T}/provider-${P}"
-		echo /usr/bin/rust-analyzer >> "${T}/provider-${P}"
-	fi
-
-	insinto /etc/env.d/rust
-	doins "${T}/provider-${PN}-${SLOT}"
-
-	if use dist; then
-		"${EPYTHON}" ./x.py dist -vv --config="${S}"/config.toml -j$(makeopts_jobs) || die
-		insinto "/usr/lib/${PN}/${SLOT}/dist"
-		doins -r "${S}/build/dist/."
-	fi
-}
-
-pkg_postinst() {
-
-	eselect rust update
-
-	if has_version dev-debug/gdb || has_version llvm-core/lldb; then
-		elog "Rust installs helper scripts for calling GDB and LLDB,"
-		elog "for convenience they are installed under /usr/bin/rust-{gdb,lldb}-${PV}."
-	fi
-
-	if has_version app-editors/emacs; then
-		optfeature "emacs support for rust" app-emacs/rust-mode
-	fi
-
-	if has_version app-editors/gvim || has_version app-editors/vim; then
-		optfeature "vim support for rust" app-vim/rust-vim
-	fi
-}
-
-pkg_postrm() {
-	eselect rust cleanup
-}
diff --git a/dev-lang/rust/rust-1.86.0_beta20250225.ebuild b/dev-lang/rust/rust-1.86.0_beta20250225.ebuild
new file mode 100644
index 000000000000..83f444b7cb32
--- /dev/null
+++ b/dev-lang/rust/rust-1.86.0_beta20250225.ebuild
@@ -0,0 +1,807 @@
+# Copyright 1999-2025 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+LLVM_COMPAT=( 19 )
+PYTHON_COMPAT=( python3_{10..13} )
+
+RUST_MAX_VER=${PV%%_*}
+if [[ ${PV} == *9999* ]]; then
+	RUST_MIN_VER="1.86.0" # Update this as new `beta` releases come out.
+elif [[ ${PV} == *beta* ]]; then
+	# Enforce that `beta` is built from `stable`.
+	# While uncommon it is possible for feature changes within `beta` to result
+	# in an older snapshot being unable to build a newer one without modifying the sources.
+	# 'stable' releases should always be able to build a beta snapshot so just use those.
+	RUST_MAX_VER="$(ver_cut 1).$(($(ver_cut 2) - 1)).0"
+	RUST_MIN_VER="$(ver_cut 1).$(($(ver_cut 2) - 1)).0"
+else
+	RUST_MIN_VER="$(ver_cut 1).$(($(ver_cut 2) - 1)).0"
+fi
+
+inherit check-reqs estack flag-o-matic llvm-r1 multiprocessing optfeature \
+	multilib multilib-build python-any-r1 rust rust-toolchain toolchain-funcs verify-sig
+
+if [[ ${PV} = *9999* ]]; then
+	inherit git-r3
+	EGIT_REPO_URI="https://github.com/rust-lang/rust.git"
+	EGIT_SUBMODULES=(
+		"*"
+		"-src/gcc"
+	)
+elif [[ ${PV} == *beta* ]]; then
+	# Identify the snapshot date of the beta release:
+	# curl -Ls static.rust-lang.org/dist/channel-rust-beta.toml | grep beta-src.tar.xz
+	betaver=${PV//*beta}
+	BETA_SNAPSHOT="${betaver:0:4}-${betaver:4:2}-${betaver:6:2}"
+	MY_P="rustc-beta"
+	SRC_URI="https://static.rust-lang.org/dist/${BETA_SNAPSHOT}/rustc-beta-src.tar.xz -> rustc-${PV}-src.tar.xz
+		verify-sig? ( https://static.rust-lang.org/dist/${BETA_SNAPSHOT}/rustc-beta-src.tar.xz.asc
+			-> rustc-${PV}-src.tar.xz.asc )
+		https://github.com/rust-lang/rust/pull/137020.patch -> ${P}-vendor-in-install-phase.patch
+	"
+	S="${WORKDIR}/${MY_P}-src"
+else
+	MY_P="rustc-${PV}"
+	SRC_URI="https://static.rust-lang.org/dist/${MY_P}-src.tar.xz
+		verify-sig? ( https://static.rust-lang.org/dist/${MY_P}-src.tar.xz.asc )
+	"
+	S="${WORKDIR}/${MY_P}-src"
+	KEYWORDS="~amd64 ~arm ~arm64 ~loong ~mips ~ppc ~ppc64 ~riscv ~sparc ~x86"
+fi
+
+DESCRIPTION="Systems programming language originally developed by Mozilla"
+HOMEPAGE="https://www.rust-lang.org/"
+
+# keep in sync with llvm ebuild of the same version as bundled one.
+ALL_LLVM_TARGETS=( AArch64 AMDGPU ARC ARM AVR BPF CSKY DirectX Hexagon Lanai
+	LoongArch M68k Mips MSP430 NVPTX PowerPC RISCV Sparc SPIRV SystemZ VE
+	WebAssembly X86 XCore Xtensa )
+ALL_LLVM_TARGETS=( "${ALL_LLVM_TARGETS[@]/#/llvm_targets_}" )
+LLVM_TARGET_USEDEPS=${ALL_LLVM_TARGETS[@]/%/(-)?}
+
+# https://github.com/rust-lang/llvm-project/blob/rustc-1.84.0/llvm/CMakeLists.txt
+_ALL_RUST_EXPERIMENTAL_TARGETS=( ARC CSKY DirectX M68k SPIRV Xtensa )
+declare -A ALL_RUST_EXPERIMENTAL_TARGETS
+for _x in "${_ALL_RUST_EXPERIMENTAL_TARGETS[@]}"; do
+	ALL_RUST_EXPERIMENTAL_TARGETS["llvm_targets_${_x}"]=0
+done
+
+LICENSE="|| ( MIT Apache-2.0 ) BSD BSD-1 BSD-2 BSD-4"
+SLOT="${PV%%_*}" # Beta releases get to share the same SLOT as the eventual stable
+
+IUSE="big-endian clippy cpu_flags_x86_sse2 debug dist doc llvm-libunwind lto rustfmt rust-analyzer rust-src +system-llvm test wasm ${ALL_LLVM_TARGETS[*]}"
+
+if [[ ${PV} = *9999* ]]; then
+	# These USE flags require nightly rust
+	IUSE+=" miri"
+fi
+
+LLVM_DEPEND=()
+# splitting usedeps needed to avoid CI/pkgcheck's UncheckableDep limitation
+for _x in "${ALL_LLVM_TARGETS[@]}"; do
+	LLVM_DEPEND+=( "	${_x}? ( $(llvm_gen_dep "llvm-core/llvm:\${LLVM_SLOT}[${_x}]") )" )
+	if [[ -v ALL_RUST_EXPERIMENTAL_TARGETS["${_x}"] ]] ; then
+		ALL_RUST_EXPERIMENTAL_TARGETS["${_x}"]=1
+	fi
+done
+LLVM_DEPEND+=( "	wasm? ( $(llvm_gen_dep 'llvm-core/lld:${LLVM_SLOT}') )" )
+LLVM_DEPEND+=( "	$(llvm_gen_dep 'llvm-core/llvm:${LLVM_SLOT}')" )
+
+BDEPEND="${PYTHON_DEPS}
+	app-eselect/eselect-rust
+	|| (
+		>=sys-devel/gcc-4.7[cxx]
+		>=llvm-core/clang-3.5
+	)
+	!system-llvm? (
+		>=dev-build/cmake-3.13.4
+		app-alternatives/ninja
+	)
+	test? ( dev-debug/gdb )
+	verify-sig? ( sec-keys/openpgp-keys-rust )
+"
+
+DEPEND="
+	>=app-arch/xz-utils-5.2
+	net-misc/curl:=[http2,ssl]
+	sys-libs/zlib:=
+	dev-libs/openssl:0=
+	system-llvm? (
+		${LLVM_DEPEND[*]}
+		llvm-libunwind? ( llvm-runtimes/libunwind:= )
+	)
+	!system-llvm? (
+		!llvm-libunwind? (
+			elibc_musl? ( sys-libs/libunwind:= )
+		)
+	)
+"
+
+RDEPEND="${DEPEND}
+	app-eselect/eselect-rust
+	dev-lang/rust-common
+	sys-apps/lsb-release
+	!dev-lang/rust:stable
+	!dev-lang/rust-bin:stable
+"
+
+REQUIRED_USE="|| ( ${ALL_LLVM_TARGETS[*]} )
+	rust-analyzer? ( rust-src )
+	test? ( ${ALL_LLVM_TARGETS[*]} )
+	wasm? ( llvm_targets_WebAssembly )
+	x86? ( cpu_flags_x86_sse2 )
+"
+
+# we don't use cmake.eclass, but can get a warning
+CMAKE_WARN_UNUSED_CLI=no
+
+QA_FLAGS_IGNORED="
+	usr/lib/${PN}/${SLOT}/bin/.*
+	usr/lib/${PN}/${SLOT}/libexec/.*
+	usr/lib/${PN}/${SLOT}/lib/lib.*.so
+	usr/lib/${PN}/${SLOT}/lib/rustlib/.*/bin/.*
+	usr/lib/${PN}/${SLOT}/lib/rustlib/.*/lib/lib.*.so
+"
+
+QA_SONAME="
+	usr/lib/${PN}/${SLOT}/lib/lib.*.so.*
+	usr/lib/${PN}/${SLOT}/lib/rustlib/.*/lib/lib.*.so
+"
+
+QA_PRESTRIPPED="
+	usr/lib/${PN}/${SLOT}/lib/rustlib/.*/bin/rust-llvm-dwp
+	usr/lib/${PN}/${SLOT}/lib/rustlib/.*/lib/self-contained/crtn.o
+"
+
+# An rmeta file is custom binary format that contains the metadata for the crate.
+# rmeta files do not support linking, since they do not contain compiled object files.
+# so we can safely silence the warning for this QA check.
+QA_EXECSTACK="usr/lib/${PN}/${SLOT}/lib/rustlib/*/lib*.rlib:lib.rmeta"
+
+# causes double bootstrap
+RESTRICT="test"
+
+VERIFY_SIG_OPENPGP_KEY_PATH=/usr/share/openpgp-keys/rust.asc
+
+PATCHES=(
+	"${DISTDIR}"/${P}-vendor-in-install-phase.patch
+	"${FILESDIR}"/1.85.0-cross-compile-libz.patch
+	"${FILESDIR}"/1.85.0-musl-dynamic-linking.patch
+	"${FILESDIR}"/1.67.0-doc-wasm.patch
+)
+
+clear_vendor_checksums() {
+	sed -i 's/\("files":{\)[^}]*/\1/' "vendor/${1}/.cargo-checksum.json" || die
+}
+
+toml_usex() {
+	usex "${1}" true false
+}
+
+src_unpack() {
+	if [[ ${PV} = *9999* ]]; then
+		git-r3_src_unpack
+		mkdir "${S}/.cargo" || die # The vendor script has a check for .cargo/config{,.toml}
+		touch "${S}/.cargo/config.toml" || die
+		local rust_stage0_root="$(${RUSTC} --print sysroot || die "Can't determine rust's sysroot")"
+		local rust_build=""
+		local rust_host=""
+		# Configure vendor to use the portage-provided toolchain. This prevents it from
+		# attempting to fetch a `beta` toolchain from the internet.
+		cat <<- _EOF_ > "${T}/vendor-config.toml"
+			[build]
+			build = "$(rust_abi "${CBUILD}")"
+			host = ["$(rust_abi "${CHOST}")"]
+			target = ["$(rust_abi "${CHOST}")"]
+			cargo = "${rust_stage0_root}/bin/cargo"
+			rustc = "${rust_stage0_root}/bin/rustc"
+			rustfmt = "${rust_stage0_root}/bin/rustfmt"
+		_EOF_
+		# We're using git sources so we need to run the Vendor script
+		# to ensure that all dependencies are present and up-to-date
+		mkdir "${S}/vendor" || die
+		# This also compiles the 'build helper', there's no way to avoid this.
+		${EPYTHON} "${S}"/x.py vendor -vvv --config="${T}"/vendor-config.toml -j$(makeopts_jobs) ||
+			die "Failed to vendor dependencies"
+		# TODO: This has to be generated somehow, this is from a 1.84.x tarball I had lying around.
+		cat <<- _EOF_ > "${S}/.cargo/config.toml"
+			[source.crates-io]
+			replace-with = "vendored-sources"
+
+			[source."git+https://github.com/rust-lang/team"]
+			git = "https://github.com/rust-lang/team"
+			replace-with = "vendored-sources"
+
+			[source.vendored-sources]
+			directory = "vendor"
+		_EOF_
+	else
+		# Until upstream merge this patch we can't use the default verify-sig_src_unpack
+		if use verify-sig; then
+			verify-sig_verify_detached "${DISTDIR}/rustc-${PV}-src.tar.xz" \
+				"${DISTDIR}/rustc-${PV}-src.tar.xz.asc"
+		fi
+		default_src_unpack
+	fi
+}
+
+pre_build_checks() {
+	local M=9216
+	# multiply requirements by 1.3 if we are doing x86-multilib
+	if use amd64; then
+		M=$(( $(usex abi_x86_32 13 10) * ${M} / 10 ))
+	fi
+	M=$(( $(usex clippy 128 0) + ${M} ))
+	if [[ ${PV} == *9999* ]]; then
+		M=$(( $(usex miri 128 0) + ${M} ))
+	fi
+	M=$(( $(usex rustfmt 256 0) + ${M} ))
+	# add 2G if we compile llvm and 256M per llvm_target
+	if ! use system-llvm; then
+		M=$(( 2048 + ${M} ))
+		local ltarget
+		for ltarget in ${ALL_LLVM_TARGETS[@]}; do
+			M=$(( $(usex ${ltarget} 256 0) + ${M} ))
+		done
+	fi
+	M=$(( $(usex wasm 256 0) + ${M} ))
+	M=$(( $(usex debug 2 1) * ${M} ))
+	eshopts_push -s extglob
+	if is-flagq '-g?(gdb)?([1-9])'; then
+		M=$(( 15 * ${M} / 10 ))
+	fi
+	eshopts_pop
+	M=$(( $(usex doc 256 0) + ${M} ))
+	CHECKREQS_DISK_BUILD=${M}M check-reqs_pkg_${EBUILD_PHASE}
+}
+
+llvm_check_deps() {
+	has_version -r "llvm-core/llvm:${LLVM_SLOT}[${LLVM_TARGET_USEDEPS// /,}]"
+}
+
+# Is LLVM being linked against libc++?
+is_libcxx_linked() {
+	local code='#include <ciso646>
+#if defined(_LIBCPP_VERSION)
+	HAVE_LIBCXX
+#endif
+'
+	local out=$($(tc-getCXX) ${CXXFLAGS} ${CPPFLAGS} -x c++ -E -P - <<<"${code}") || return 1
+	[[ ${out} == *HAVE_LIBCXX* ]]
+}
+
+pkg_pretend() {
+	pre_build_checks
+}
+
+pkg_setup() {
+	pre_build_checks
+	python-any-r1_pkg_setup
+
+	export LIBGIT2_NO_PKG_CONFIG=1 #749381
+	if tc-is-cross-compiler; then
+		use system-llvm && die "USE=system-llvm not allowed when cross-compiling"
+		local cross_llvm_target="$(llvm_tuple_to_target "${CBUILD}")"
+		use "llvm_targets_${cross_llvm_target}" || \
+			die "Must enable LLVM_TARGETS=${cross_llvm_target} matching CBUILD=${CBUILD} when cross-compiling"
+	fi
+
+	rust_pkg_setup
+
+	if use system-llvm; then
+		llvm-r1_pkg_setup
+
+		local llvm_config="$(get_llvm_prefix)/bin/llvm-config"
+		export LLVM_LINK_SHARED=1
+		export RUSTFLAGS="${RUSTFLAGS} -Lnative=$("${llvm_config}" --libdir)"
+	fi
+}
+
+src_prepare() {
+	if [[ ${PV} = *9999* ]]; then
+		# We need to update / generate lockfiles for the workspace
+		${CARGO} generate-lockfile --offline
+
+	fi
+	# Rust baselines to Pentium4 on x86, this patch lowers the baseline to i586 when sse2 is not set.
+	if use x86; then
+		if ! use cpu_flags_x86_sse2; then
+			eapply "${FILESDIR}/1.82.0-i586-baseline.patch"
+			#grep -rl cmd.args.push\(\"-march=i686\" . | xargs sed  -i 's/march=i686/-march=i586/g' || die
+		fi
+	fi
+
+	default
+}
+
+src_configure() {
+	if tc-is-cross-compiler; then
+		export PKG_CONFIG_ALLOW_CROSS=1
+		export PKG_CONFIG_PATH="${ESYSROOT}/usr/$(get_libdir)/pkgconfig"
+		export OPENSSL_INCLUDE_DIR="${ESYSROOT}/usr/include"
+		export OPENSSL_LIB_DIR="${ESYSROOT}/usr/$(get_libdir)"
+	fi
+
+	filter-lto # https://bugs.gentoo.org/862109 https://bugs.gentoo.org/866231
+
+	local rust_target="" rust_targets="" arch_cflags
+
+	# Collect rust target names to compile standard libs for all ABIs.
+	for v in $(multilib_get_enabled_abi_pairs); do
+		rust_targets+=",\"$(rust_abi $(get_abi_CHOST ${v##*.}))\""
+	done
+	if use wasm; then
+		rust_targets+=",\"wasm32-unknown-unknown\""
+		if use system-llvm; then
+			# un-hardcode rust-lld linker for this target
+			# https://bugs.gentoo.org/715348
+			sed -i '/linker:/ s/rust-lld/wasm-ld/' compiler/rustc_target/src/spec/base/wasm.rs || die
+		fi
+	fi
+	rust_targets="${rust_targets#,}"
+
+	# cargo and rustdoc are mandatory and should always be included
+	local tools='"cargo","rustdoc"'
+	use clippy && tools+=',"clippy"'
+	use rustfmt && tools+=',"rustfmt"'
+	use rust-analyzer && tools+=',"rust-analyzer","rust-analyzer-proc-macro-srv"'
+	use rust-src && tools+=',"src"'
+
+	if [[ ${PV} == *9999* ]]; then
+		use miri && tools+=',"miri"'
+	fi
+
+	local rust_stage0_root="$(${RUSTC} --print sysroot || die "Can't determine rust's sysroot")"
+	# in case of prefix it will be already prefixed, as --print sysroot returns full path
+	[[ -d ${rust_stage0_root} ]] || die "${rust_stage0_root} is not a directory"
+
+	rust_target="$(rust_abi)"
+	rust_build="$(rust_abi "${CBUILD}")"
+	rust_host="$(rust_abi "${CHOST}")"
+
+	RUST_EXPERIMENTAL_TARGETS=()
+	for _x in "${!ALL_RUST_EXPERIMENTAL_TARGETS[@]}"; do
+		if [[ ${ALL_RUST_EXPERIMENTAL_TARGETS[${_x}]} == 1 ]] && use ${_x} ; then
+			RUST_EXPERIMENTAL_TARGETS+=( ${_x#llvm_targets_} )
+		fi
+	done
+	RUST_EXPERIMENTAL_TARGETS=${RUST_EXPERIMENTAL_TARGETS[@]}
+
+	local cm_btype="$(usex debug DEBUG RELEASE)"
+	local build_channel
+	local build_miri="false"
+	case "${PV}" in
+		*9999*)
+			build_channel="nightly"
+			;;
+		*beta*)
+			build_channel="beta"
+			;;
+		*)
+			build_channel="stable"
+			;;
+	esac
+	cat <<- _EOF_ > "${S}"/config.toml
+		# https://github.com/rust-lang/rust/issues/135358 (bug #947897)
+		profile = "dist"
+		[llvm]
+		download-ci-llvm = false
+		optimize = $(toml_usex !debug)
+		release-debuginfo = $(toml_usex debug)
+		assertions = $(toml_usex debug)
+		ninja = true
+		targets = "${LLVM_TARGETS// /;}"
+		experimental-targets = "${RUST_EXPERIMENTAL_TARGETS// /;}"
+		link-shared = $(toml_usex system-llvm)
+		$(if is_libcxx_linked; then
+			# https://bugs.gentoo.org/732632
+			echo "use-libcxx = true"
+			echo "static-libstdcpp = false"
+		fi)
+		$(case "${rust_target}" in
+			i586-*-linux-*)
+				# https://github.com/rust-lang/rust/issues/93059
+				echo 'cflags = "-fcf-protection=none"'
+				echo 'cxxflags = "-fcf-protection=none"'
+				echo 'ldflags = "-fcf-protection=none"'
+				;;
+			*)
+				;;
+		esac)
+		enable-warnings = false
+		[llvm.build-config]
+		CMAKE_VERBOSE_MAKEFILE = "ON"
+		$(if ! tc-is-cross-compiler; then
+			# When cross-compiling, LLVM is compiled twice, once for host and
+			# once for target.  Unfortunately, this build configuration applies
+			# to both, which means any flags applicable to one target but not
+			# the other will break.  Conditionally disable respecting user
+			# flags when cross-compiling.
+			echo "CMAKE_C_FLAGS_${cm_btype} = \"${CFLAGS}\""
+			echo "CMAKE_CXX_FLAGS_${cm_btype} = \"${CXXFLAGS}\""
+			echo "CMAKE_EXE_LINKER_FLAGS_${cm_btype} = \"${LDFLAGS}\""
+			echo "CMAKE_MODULE_LINKER_FLAGS_${cm_btype} = \"${LDFLAGS}\""
+			echo "CMAKE_SHARED_LINKER_FLAGS_${cm_btype} = \"${LDFLAGS}\""
+			echo "CMAKE_STATIC_LINKER_FLAGS_${cm_btype} = \"${ARFLAGS}\""
+		fi)
+		[build]
+		build-stage = 2
+		test-stage = 2
+		build = "${rust_build}"
+		host = ["${rust_host}"]
+		target = [${rust_targets}]
+		cargo = "${rust_stage0_root}/bin/cargo"
+		rustc = "${rust_stage0_root}/bin/rustc"
+		rustfmt = "${rust_stage0_root}/bin/rustfmt"
+		docs = $(toml_usex doc)
+		compiler-docs = false
+		submodules = false
+		python = "${EPYTHON}"
+		locked-deps = true
+		vendor = true
+		extended = true
+		tools = [${tools}]
+		verbose = 2
+		sanitizers = false
+		profiler = true
+		cargo-native-static = false
+		[install]
+		prefix = "${EPREFIX}/usr/lib/${PN}/${SLOT}"
+		sysconfdir = "etc"
+		docdir = "share/doc/rust"
+		bindir = "bin"
+		libdir = "lib"
+		mandir = "share/man"
+		[rust]
+		# https://github.com/rust-lang/rust/issues/54872
+		codegen-units-std = 1
+		optimize = true
+		debug = $(toml_usex debug)
+		debug-assertions = $(toml_usex debug)
+		debug-assertions-std = $(toml_usex debug)
+		debuginfo-level = $(usex debug 2 0)
+		debuginfo-level-rustc = $(usex debug 2 0)
+		debuginfo-level-std = $(usex debug 2 0)
+		debuginfo-level-tools = $(usex debug 2 0)
+		debuginfo-level-tests = 0
+		backtrace = true
+		incremental = false
+		$(if ! tc-is-cross-compiler; then
+			echo "default-linker = \"$(tc-getCC)\""
+		fi)
+		channel = "${build_channel}"
+		description = "gentoo"
+		rpath = true
+		verbose-tests = true
+		optimize-tests = $(toml_usex !debug)
+		codegen-tests = true
+		dist-src = false
+		remap-debuginfo = true
+		lld = $(usex system-llvm false $(toml_usex wasm))
+		# only deny warnings if doc+wasm are NOT requested, documenting stage0 wasm std fails without it
+		# https://github.com/rust-lang/rust/issues/74976
+		# https://github.com/rust-lang/rust/issues/76526
+		deny-warnings = $(usex wasm $(usex doc false true) true)
+		backtrace-on-ice = true
+		jemalloc = false
+		# See https://github.com/rust-lang/rust/issues/121124
+		lto = "$(usex lto thin off)"
+		[dist]
+		src-tarball = false
+		compression-formats = ["xz"]
+		compression-profile = "balanced"
+	_EOF_
+
+	for v in $(multilib_get_enabled_abi_pairs); do
+		rust_target=$(rust_abi $(get_abi_CHOST ${v##*.}))
+		arch_cflags="$(get_abi_CFLAGS ${v##*.})"
+
+		export CFLAGS_${rust_target//-/_}="${arch_cflags}"
+
+		cat <<- _EOF_ >> "${S}"/config.toml
+			[target.${rust_target}]
+			ar = "$(tc-getAR)"
+			cc = "$(tc-getCC)"
+			cxx = "$(tc-getCXX)"
+			linker = "$(tc-getCC)"
+			ranlib = "$(tc-getRANLIB)"
+			llvm-libunwind = "$(usex llvm-libunwind $(usex system-llvm system in-tree) no)"
+		_EOF_
+		if use system-llvm; then
+			cat <<- _EOF_ >> "${S}"/config.toml
+				llvm-config = "$(get_llvm_prefix)/bin/llvm-config"
+			_EOF_
+		fi
+		# by default librustc_target/spec/linux_musl_base.rs sets base.crt_static_default = true;
+		# but we patch it and set to false here as well
+		if use elibc_musl; then
+			cat <<- _EOF_ >> "${S}"/config.toml
+				crt-static = false
+				musl-root = "$($(tc-getCC) -print-sysroot)/usr"
+			_EOF_
+		fi
+	done
+	if use wasm; then
+		wasm_target="wasm32-unknown-unknown"
+		export CFLAGS_${wasm_target//-/_}="$(filter-flags '-mcpu*' '-march*' '-mtune*'; echo "$CFLAGS")"
+		cat <<- _EOF_ >> "${S}"/config.toml
+			[target.wasm32-unknown-unknown]
+			linker = "$(usex system-llvm lld rust-lld)"
+			# wasm target does not have profiler_builtins https://bugs.gentoo.org/848483
+			profiler = false
+		_EOF_
+	fi
+
+	if [[ -n ${I_KNOW_WHAT_I_AM_DOING_CROSS} ]]; then # whitespace intentionally shifted below
+	# experimental cross support
+	# discussion: https://bugs.gentoo.org/679878
+	# TODO: c*flags, clang, system-llvm, cargo.eclass target support
+	# it would be much better if we could split out stdlib
+	# complilation to separate ebuild and abuse CATEGORY to
+	# just install to /usr/lib/rustlib/<target>
+
+	# extra targets defined as a bash array
+	# spec format:  <LLVM target>:<rust-target>:<CTARGET>
+	# best place would be /etc/portage/env/dev-lang/rust
+	# Example:
+	# RUST_CROSS_TARGETS=(
+	#	"AArch64:aarch64-unknown-linux-gnu:aarch64-unknown-linux-gnu"
+	# )
+	# no extra hand holding is done, no target transformations, all
+	# values are passed as-is with just basic checks, so it's up to user to supply correct values
+	# valid rust targets can be obtained with
+	# 	rustc --print target-list
+	# matching cross toolchain has to be installed
+	# matching LLVM_TARGET has to be enabled for both rust and llvm (if using system one)
+	# only gcc toolchains installed with crossdev are checked for now.
+
+	# BUG: we can't pass host flags to cross compiler, so just filter for now
+	# BUG: this should be more fine-grained.
+	filter-flags '-mcpu=*' '-march=*' '-mtune=*'
+
+	local cross_target_spec
+	for cross_target_spec in "${RUST_CROSS_TARGETS[@]}";do
+		# extracts first element form <LLVM target>:<rust-target>:<CTARGET>
+		local cross_llvm_target="${cross_target_spec%%:*}"
+		# extracts toolchain triples, <rust-target>:<CTARGET>
+		local cross_triples="${cross_target_spec#*:}"
+		# extracts first element after before : separator
+		local cross_rust_target="${cross_triples%%:*}"
+		# extracts last element after : separator
+		local cross_toolchain="${cross_triples##*:}"
+		use llvm_targets_${cross_llvm_target} || die "need llvm_targets_${cross_llvm_target} target enabled"
+		command -v ${cross_toolchain}-gcc > /dev/null 2>&1 || die "need ${cross_toolchain} cross toolchain"
+
+		cat <<- _EOF_ >> "${S}"/config.toml
+			[target.${cross_rust_target}]
+			ar = "${cross_toolchain}-ar"
+			cc = "${cross_toolchain}-gcc"
+			cxx = "${cross_toolchain}-g++"
+			linker = "${cross_toolchain}-gcc"
+			ranlib = "${cross_toolchain}-ranlib"
+		_EOF_
+		if use system-llvm; then
+			cat <<- _EOF_ >> "${S}"/config.toml
+				llvm-config = "$(get_llvm_prefix)/bin/llvm-config"
+			_EOF_
+		fi
+		if [[ "${cross_toolchain}" == *-musl* ]]; then
+			cat <<- _EOF_ >> "${S}"/config.toml
+				musl-root = "$(${cross_toolchain}-gcc -print-sysroot)/usr"
+			_EOF_
+		fi
+
+		# append cross target to "normal" target list
+		# example 'target = ["powerpc64le-unknown-linux-gnu"]'
+		# becomes 'target = ["powerpc64le-unknown-linux-gnu","aarch64-unknown-linux-gnu"]'
+
+		rust_targets="${rust_targets},\"${cross_rust_target}\""
+		sed -i "/^target = \[/ s#\[.*\]#\[${rust_targets}\]#" config.toml || die
+
+		ewarn
+		ewarn "Enabled ${cross_rust_target} rust target"
+		ewarn "Using ${cross_toolchain} cross toolchain"
+		ewarn
+		if ! has_version -b 'sys-devel/binutils[multitarget]' ; then
+			ewarn "'sys-devel/binutils[multitarget]' is not installed"
+			ewarn "'strip' will be unable to strip cross libraries"
+			ewarn "cross targets will be installed with full debug information"
+			ewarn "enable 'multitarget' USE flag for binutils to be able to strip object files"
+			ewarn
+			ewarn "Alternatively llvm-strip can be used, it supports stripping any target"
+			ewarn "define STRIP=\"llvm-strip\" to use it (experimental)"
+			ewarn
+		fi
+	done
+	fi # I_KNOW_WHAT_I_AM_DOING_CROSS
+
+	einfo "Rust configured with the following flags:"
+	echo
+	echo RUSTFLAGS="\"${RUSTFLAGS}\""
+	echo RUSTFLAGS_BOOTSTRAP="\"${RUSTFLAGS_BOOTSTRAP}\""
+	echo RUSTFLAGS_NOT_BOOTSTRAP="\"${RUSTFLAGS_NOT_BOOTSTRAP}\""
+	echo MAGIC_EXTRA_RUSTFLAGS="\"${MAGIC_EXTRA_RUSTFLAGS}\""
+	env | grep "CARGO_TARGET_.*_RUSTFLAGS="
+	env | grep "CFLAGS_.*"
+	echo
+	einfo "config.toml contents:"
+	cat "${S}"/config.toml || die
+	echo
+}
+
+src_compile() {
+	RUST_BACKTRACE=1 "${EPYTHON}" ./x.py build -vvv --config="${S}"/config.toml -j$(makeopts_jobs) || die
+}
+
+src_test() {
+	# https://rustc-dev-guide.rust-lang.org/tests/intro.html
+
+	# those are basic and codegen tests.
+	local tests=(
+		codegen
+		codegen-units
+		compile-fail
+		incremental
+		mir-opt
+		pretty
+		run-make
+	)
+
+	# fails if llvm is not built with ALL targets.
+	# and known to fail with system llvm sometimes.
+	use system-llvm || tests+=( assembly )
+
+	# fragile/expensive/less important tests
+	# or tests that require extra builds
+	# TODO: instead of skipping, just make some nonfatal.
+	if [[ ${ERUST_RUN_EXTRA_TESTS:-no} != no ]]; then
+		tests+=(
+			rustdoc
+			rustdoc-js
+			rustdoc-js-std
+			rustdoc-ui
+			run-make-fulldeps
+			ui
+			ui-fulldeps
+		)
+	fi
+
+	local i failed=()
+	einfo "rust_src_test: enabled tests ${tests[@]/#/src/test/}"
+	for i in "${tests[@]}"; do
+		local t="src/test/${i}"
+		einfo "rust_src_test: running ${t}"
+		if ! RUST_BACKTRACE=1 "${EPYTHON}" ./x.py test -vv --config="${S}"/config.toml \
+				-j$(makeopts_jobs) --no-doc --no-fail-fast "${t}"
+		then
+				failed+=( "${t}" )
+				eerror "rust_src_test: ${t} failed"
+		fi
+	done
+
+	if [[ ${#failed[@]} -ne 0 ]]; then
+		eerror "rust_src_test: failure summary: ${failed[@]}"
+		die "aborting due to test failures"
+	fi
+}
+
+src_install() {
+	DESTDIR="${D}" "${EPYTHON}" ./x.py install -vv --config="${S}"/config.toml -j$(makeopts_jobs) || die
+
+	docompress /usr/lib/${PN}/${SLOT}/share/man/
+
+	# bug #689562, #689160
+	rm -v "${ED}/usr/lib/${PN}/${SLOT}/etc/bash_completion.d/cargo" || die
+	rmdir -v "${ED}/usr/lib/${PN}/${SLOT}"/etc{/bash_completion.d,} || die
+
+	local symlinks=(
+		cargo
+		rustc
+		rustdoc
+		rust-gdb
+		rust-gdbgui
+		rust-lldb
+	)
+
+	use clippy && symlinks+=( clippy-driver cargo-clippy )
+	if [[ ${PV} = *9999* ]]; then
+		use miri && symlinks+=( miri cargo-miri )
+	fi
+	use rustfmt && symlinks+=( rustfmt cargo-fmt )
+	use rust-analyzer && symlinks+=( rust-analyzer )
+
+	einfo "installing eselect-rust symlinks and paths: ${symlinks[@]}"
+	local i
+	for i in "${symlinks[@]}"; do
+		# we need realpath on /usr/bin/* symlink return version-appended binary path.
+		# so /usr/bin/rustc should point to /usr/lib/rust/<ver>/bin/rustc-<ver>
+		# need to fix eselect-rust to remove this hack.
+		local ver_i="${i}-${PV%%_*}"
+		if [[ -f "${ED}/usr/lib/${PN}/${SLOT}/bin/${i}" ]]; then
+			einfo "Installing ${i} symlink"
+			ln -v "${ED}/usr/lib/${PN}/${SLOT}/bin/${i}" "${ED}/usr/lib/${PN}/${SLOT}/bin/${ver_i}" || die
+		else
+			ewarn "${i} symlink requested, but source file not found"
+			ewarn "please report this"
+		fi
+		dosym "../lib/${PN}/${SLOT}/bin/${ver_i}" "/usr/bin/${ver_i}"
+	done
+
+	# symlinks to switch components to active rust in eselect
+	dosym "${SLOT}/lib" "/usr/lib/${PN}/lib-${SLOT}"
+	use rust-analyzer && dosym "${SLOT}/libexec" "/usr/lib/${PN}/libexec-${SLOT}"
+	dosym "${SLOT}/share/man" "/usr/lib/${PN}/man-${SLOT}"
+	dosym "rust/${SLOT}/lib/rustlib" "/usr/lib/rustlib-${SLOT}"
+	dosym "../../lib/${PN}/${SLOT}/share/doc/rust" "/usr/share/doc/${P}"
+
+	newenvd - "50${P}" <<-_EOF_
+		MANPATH="${EPREFIX}/usr/lib/rust/man-${SLOT}"
+	_EOF_
+
+	rm -rf "${ED}/usr/lib/${PN}/${SLOT}"/*.old || die
+	rm -rf "${ED}/usr/lib/${PN}/${SLOT}/bin"/*.old || die
+	rm -rf "${ED}/usr/lib/${PN}/${SLOT}/doc"/*.old || die
+
+	# note: eselect-rust adds EROOT to all paths below
+	cat <<-_EOF_ > "${T}/provider-${PN}-${SLOT}"
+		/usr/bin/cargo
+		/usr/bin/rustdoc
+		/usr/bin/rust-gdb
+		/usr/bin/rust-gdbgui
+		/usr/bin/rust-lldb
+		/usr/lib/rustlib
+		/usr/lib/rust/lib
+		/usr/lib/rust/man
+		/usr/share/doc/rust
+	_EOF_
+
+	if use clippy; then
+		echo /usr/bin/clippy-driver >> "${T}/provider-${P}"
+		echo /usr/bin/cargo-clippy >> "${T}/provider-${P}"
+	fi
+	if [[ ${SLOT} == *9999* ]] && use miri; then
+		echo /usr/bin/miri >> "${T}/provider-${P}"
+		echo /usr/bin/cargo-miri >> "${T}/provider-${P}"
+	fi
+	if use rustfmt; then
+		echo /usr/bin/rustfmt >> "${T}/provider-${P}"
+		echo /usr/bin/cargo-fmt >> "${T}/provider-${P}"
+	fi
+	if use rust-analyzer; then
+		echo /usr/lib/rust/libexec >> "${T}/provider-${P}"
+		echo /usr/bin/rust-analyzer >> "${T}/provider-${P}"
+	fi
+
+	insinto /etc/env.d/rust
+	doins "${T}/provider-${PN}-${SLOT}"
+
+	if use dist; then
+		"${EPYTHON}" ./x.py dist -vv --config="${S}"/config.toml -j$(makeopts_jobs) || die
+		insinto "/usr/lib/${PN}/${SLOT}/dist"
+		doins -r "${S}/build/dist/."
+	fi
+}
+
+pkg_postinst() {
+
+	eselect rust update
+
+	if has_version dev-debug/gdb || has_version llvm-core/lldb; then
+		elog "Rust installs helper scripts for calling GDB and LLDB,"
+		elog "for convenience they are installed under /usr/bin/rust-{gdb,lldb}-${PV}."
+	fi
+
+	if has_version app-editors/emacs; then
+		optfeature "emacs support for rust" app-emacs/rust-mode
+	fi
+
+	if has_version app-editors/gvim || has_version app-editors/vim; then
+		optfeature "vim support for rust" app-vim/rust-vim
+	fi
+}
+
+pkg_postrm() {
+	eselect rust cleanup
+}
diff --git a/dev-lang/rust/rust-9999.ebuild b/dev-lang/rust/rust-9999.ebuild
index 28e6f429280a..97c665f7828d 100644
--- a/dev-lang/rust/rust-9999.ebuild
+++ b/dev-lang/rust/rust-9999.ebuild
@@ -470,6 +470,7 @@ src_configure() {
 		verbose-tests = true
 		optimize-tests = $(toml_usex !debug)
 		codegen-tests = true
+		omit-git-hash = false
 		dist-src = false
 		remap-debuginfo = true
 		lld = $(usex system-llvm false $(toml_usex wasm))
-- 
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