dev-lang/rust: add 1.65.0

pull slotted lld
don't set doc-stage = 2

Signed-off-by: Georgy Yakovlev <gyakovlev@gentoo.org>

3 files changed, 832 insertions, 0 deletions

diff --git a/dev-lang/rust/Manifest b/dev-lang/rust/Manifest
index 62da41629e45..91aa11db9f43 100644
--- a/dev-lang/rust/Manifest
+++ b/dev-lang/rust/Manifest
@@ -62,7 +62,41 @@ DIST rust-1.63.0-x86_64-unknown-linux-gnu.tar.xz 155435832 BLAKE2B d5427a7380a21
 DIST rust-1.63.0-x86_64-unknown-linux-gnu.tar.xz.asc 801 BLAKE2B 0b4465f1afbf2f5f9135cf722632ffd7df9ef4e92c65e9ef6d4aede5b1ff392973949a6737e88685033ee571dfefe9b099d477480d7aaec2a329926a87a6f5b2 SHA512 0c8d339204a23000cdebfaee7faaa576673bd8d98111ea187f5e19f03f7231f3bbec8158c5b04d8d903877f1addeebc9f4fdc6b1de0fc0ad2995742987eafb1c
 DIST rust-1.63.0-x86_64-unknown-linux-musl.tar.xz 254705824 BLAKE2B 8d35bbc3ffa53b52d7d7aacc51b90283d9703a40d5623c184a79195799aa3768a34942e235e2002a0b72d76110c0d66fb5ea403f9d0c81021ead52cea2a51e40 SHA512 995530319a14bd6674d5be145e777b7fd482953e62ecf672a29e2c5b4bf567e010d7db4d5c6acef1603d79135e74f21955d9fc13ed7e1c33279d05aae39bdfec
 DIST rust-1.63.0-x86_64-unknown-linux-musl.tar.xz.asc 801 BLAKE2B 2681d77ffb4c40305ff532f975a9e31ea72a50fa2a25661ecd721a50f081a4ab3a659b2a06500540dbf21357af098add2a4a4dec63f50d5b3ed4c041fe4b49dd SHA512 012b2cb560e0d2514eb288960e6a3703f9be9a7e611b915f07f1150645b8527fe653d3fbb795ad62c5e431cb4ca175a915710913eb2b9f2912c188d17baa0d14
+DIST rust-1.64.0-aarch64-unknown-linux-gnu.tar.xz 245636524 BLAKE2B 90e405bc6e7f47aec091924bcd7a35017d591936b2697f2b0ddc5271e65fa431cc193a2b392489b6636896fa2d4f3d8f5096d197cfed36e812ea7f3986130c85 SHA512 c163b19a56148646ebbdb10b5b20459a206b4a1c45a2de9ce69f2e45dc5527cc69920f81007ee6fb75080782d534a2a39f7580d0c8cfdcf36ebed971b2513b63
+DIST rust-1.64.0-aarch64-unknown-linux-gnu.tar.xz.asc 801 BLAKE2B 3ed79e6a5168676c19b9092692576b72b7bee6cc6fc6fc9213d492ac9641974e0bfefd9eee2663852580ee05038becb3045ff4410fe96aa8e529afc4d3652abb SHA512 14e635fbd60512e8d36c50c2c07d510236cc73661a6294f0a01fe260a945581885c60783e72cbcc0d85b87a161e0940b34b496380bbab659c6e5d0dbb4050a4d
+DIST rust-1.64.0-aarch64-unknown-linux-musl.tar.xz 226328036 BLAKE2B 43119c95866b3bd7e1b0832079f4fa23d79f5168e1aeb1d9a984897486cdaabbf035150e5633114c3d87afc8cf47e2d591e7c32961cc7cef99595fec303bc348 SHA512 8af3a7293b73d5f3129a17651cc8009290e5eade4802a872bb2a568444c60b4227a89d419c751fa394bf81a38f553a7418a0abd6ec3234737148d1561b91bace
+DIST rust-1.64.0-aarch64-unknown-linux-musl.tar.xz.asc 801 BLAKE2B 4807f2cef672af6be484e5a7368110ebc84d4bb7aa0f97819171c43b066fac041aa341bc5df696347ecdc7e5de37dc8c159ef7308c8a487c105b977edc794a7b SHA512 ec4c9eb3d9207970f19ca9d6b12bfc293786fed57e20a3a9fa25fc6b70a80a12752c6f57c095731edc1fde1c608a94f7d89e89219f8ecd89a13758df891cc0ee
+DIST rust-1.64.0-arm-unknown-linux-gnueabi.tar.xz 207018112 BLAKE2B 1f8d1bb48e5f529b84c99a6941aa0c3c6d49287492b9f63f8e9d5688bd530c67ce9ea2dcd8951a34c96d54d559f4e84cdb569397613bbedba892341fd90817d9 SHA512 07dfe4449359c89719f440da7986f35fdc1873270a8910a708a0f37daef10cf7d8dca7b6b4fb6d741bed490ba12d4e9b455aa1d13d9ae80f22e2b9c879beafac
+DIST rust-1.64.0-arm-unknown-linux-gnueabi.tar.xz.asc 801 BLAKE2B d0653612a7e9bd4cf27ae5f7f4152ee0f14fde8d5e20a7b738a6925e395083ac851500e2b65e0a40a5b883fa441f11ec7574a5e40b4964fb38f237bdf0b17349 SHA512 3314a83af0a0fd2dbd73531952002a47d89ef155cf68037b387c5c7afbe7dc69c68bf0fa429eb45a721ae9176a82a876de04091e8fc3929c3c4825ee214c6124
+DIST rust-1.64.0-arm-unknown-linux-gnueabihf.tar.xz 208017632 BLAKE2B fc10f068fb154021391c309f36d2d18bdfe09b3e17d9ac02e8f0c258d87959ce7b62dfab80ebbfc6d0c68fa6beeb25daa7b7b3a7ce763637121c7afdcb32699a SHA512 bac5fe98e68a782683a5df0d199e8ce67d9db9fbe9f590075b34e33c898198d372abd94eeef48330d1a7799fa1396add3b1ffc154281dd5bd276f4409e3b4027
+DIST rust-1.64.0-arm-unknown-linux-gnueabihf.tar.xz.asc 801 BLAKE2B 210e7de45ab02fd2c83c1978104cedd28daa2499e475143660d5e3a6a4dd4897a866c6df22f929c61da08d2b61df489277fff73492a7e7a7749f2fe293de97df SHA512 221a0a70c03e049d2c6095575a2aabe1d32937123c86550b1f6f1b23734e996ff4bfc167b7e679809e3e383c25f15100772d8f75456e556d4ebd3aa73d789908
+DIST rust-1.64.0-armv7-unknown-linux-gnueabihf.tar.xz 212867232 BLAKE2B b3f9501c4cd68d9ca59d8a5c49cc512c0a97605eb74158c590db4ceabce5ff1aa99373c676d15676627c0631de8b58bfc4ca21463dd1109d6ec6451db909bea4 SHA512 3fc482ed9dd1648ccfd2fb459eb7c738ca26eab396b1a39b316cef10b8663e97b0ec008035936cf5e47f7cf9f8a0416cf09d638af174ffdf5b58b54b2ecb6975
+DIST rust-1.64.0-armv7-unknown-linux-gnueabihf.tar.xz.asc 801 BLAKE2B ba21487ad1a304be6cf2a12446ed674fb67e9d4b1b107ca675af236a45de6647bf96512a70a2e813466e85d388b51c674dc7435c185011ec9572bf28cbf513f6 SHA512 384f09eec47175b2cc40560a6b2ad4e792ab4b78e5c750231a312858882281ef33b40e797ccbb0a0bcb2ea3dfae4703b80941d936eb4cea229166375511b1514
+DIST rust-1.64.0-i686-unknown-linux-gnu.tar.xz 232295664 BLAKE2B 452a13cb499a29167a403b54d86c08fa84b4a10d51d7ef37954bc79f13d0ada0b3a256b32f804977d03b9e31331ef250e160b14f1c8fcdf93876001b9827957a SHA512 763966e449ce46e998f0ed9670d7e6cfae3a7147360c9cb85003cf382e1e01dabc1a448d35a102aafa96105fa65c284ec161b9bfa5061225de6d6acbf40ad480
+DIST rust-1.64.0-i686-unknown-linux-gnu.tar.xz.asc 801 BLAKE2B b6055151a6442c5ae5968a380e3c5e9367307f91bc7304bcbd90d2a9434145682a70416125bb8dfecfcfce5449e6497591034adbfd4b5537601492757915c131 SHA512 1bb9b52aca4fc0f300e31d96e5fe5fbe0bec45a1ed848da66e1c83ef4fea20ebec86478ed94efd13dad3f8c6d52a330356d39a894387b87202e66400268fd4e0
+DIST rust-1.64.0-mips-unknown-linux-gnu.tar.xz 167831852 BLAKE2B 76e00291f2e2b18f2261677c1d6e322f8fef01da96514306b1fefc1a29e7e4fd0e5971614ad5c3a03a9a54321a01954d856b21df032205317c21b37470a6909c SHA512 29965d77a7fd6bcc74862d1c24a5f4843eb1870ece25691afdfa464c66617cb683cc73f8b991dee96d06e5e4791f6b71f7c81cf4f1d97539c3b9cbb15bf490da
+DIST rust-1.64.0-mips-unknown-linux-gnu.tar.xz.asc 801 BLAKE2B 81f100c9a788c863b2f2388e7264b8e6b4ea062fd46d6c0e922561f491cf86227c46511ab538d8bc56a9b2d01d2ae19f105966ea00f2ea86592128e4c26b55ae SHA512 41e59d670efc9085c6e3ed59bb8808dc747eebfbd65ed976da04ff70095d91f15b43f8d257a09d2a6ee1cb07c5d1f49081529e0fc8234a26599a28ddaf167f4b
+DIST rust-1.64.0-mips64-unknown-linux-gnuabi64.tar.xz 172953460 BLAKE2B 68aa0d08ba233ebe95c1107574ce9165cc2afc0a43db044b6951055e30f22ed6070f9fe10f0482923f767e39fb99f887da59dcf679c3e9c16345f943b0c3012c SHA512 59250c13e980fc38b6da08faf7713c1c9ea2865793cfb0032a65a499bbfd4f7af94604bbdab4e0fd34a0be6b74db8cdcb8c3859e5c13d8a29d8c953d67a9bc84
+DIST rust-1.64.0-mips64-unknown-linux-gnuabi64.tar.xz.asc 801 BLAKE2B eb53e83dde3acdc3cfb84c7285a1373c4059c0c06e4cfe855339ce817a0a8cbea33da9fa0894a9640871003e8058482e46a31b04dd9ad1d8ae8e9ac1b3c72f7b SHA512 2e8438ca78bfd610c8c7b99a4aa2663cfddc611fa4495f490789d7838b80a8f90b9eb7f59171da187fdbc8a17b4ebc20eb69ccdaa75cca4966246e78dd41473d
+DIST rust-1.64.0-mipsel-unknown-linux-gnu.tar.xz 172189848 BLAKE2B aff9136ab374a3e39674c17b1ffa4fb8fe077301284b5dde927e0cf56e51edbb912b40d852aac4ad4d4e39f3ae20e68174dac338af6682735e8a031607652176 SHA512 9283e1e9eeff6c67c49e656709e1a6c6c52329aa913c6024af3aebd889b594f48f0c8172270c579a52d5980f7a42730a6184254b5c8002928f8f93c484dad211
+DIST rust-1.64.0-mipsel-unknown-linux-gnu.tar.xz.asc 801 BLAKE2B 613ac8c773cc6585a99295e2770879cf7a9a56e1ac43256a1d8a56a12bd9b8aa08e49df96819805f4e98230d5c6d106eae837102c21f044e7e0b7756c453c529 SHA512 24d15870efaf03a916d69a358871a427869bc41ce164dcf8968564dc3f213603d0572f34b8ebbcd98d6653ff1e70664baf8c2dbdb32a0779f361338d4d3a0f43
+DIST rust-1.64.0-powerpc-unknown-linux-gnu.tar.xz 204541208 BLAKE2B 5bbd65d8aece3e32bca62d8a8b210cf155a786501c96e509462d0c45b15f19910794ff85ade0c42b575f41bd47f4f3250c011152b968ff1ad000ead6b7a200ad SHA512 13cc41679bf1bdb94d042de18696685087f3bfc84c0f99567b8c9dc6a5796c0f122499254ca8032eced8fa53623133a8b6652e14f398a9cea95ac3364a227f45
+DIST rust-1.64.0-powerpc-unknown-linux-gnu.tar.xz.asc 801 BLAKE2B f4ed9d8a006f787d67b7aa18361079724dad1378416fabf18d380a67a45db6475d7da8e5389a057fd117da6af6dc7d891f9e6567af09f91c538ba6459b4e12db SHA512 f616b0e5ef7e0689f33905864c8d48405e18b5ada73c3cb9a8f9a6d80173ee3abf10448403fe7790be902123d55295412ff7af77db4770f6c824439af39e0a20
+DIST rust-1.64.0-powerpc64-unknown-linux-gnu.tar.xz 210911224 BLAKE2B b8726c1036d8de07684a7ed439a7d8365722d1224644a76219df776fc6bb0c97200afbc92a6054cbe0e98127c239cde9c06ef56a73a92b9ff320c135f8c0ecaf SHA512 8ed6150a13dfa136e16e0cee775f8c9d2926569fa17b6b88fb4e9ce1c1a127c8fda828a944e18e2bf184a0ae39a61db478103ad96acb6139e7cb25b69efdffcd
+DIST rust-1.64.0-powerpc64-unknown-linux-gnu.tar.xz.asc 801 BLAKE2B b8659a6b076db11acf124d73492fd21250df3924323616931cd8a8bfd5bb00ee1c48caf4e2448bd8e0120a3bf838cf73dcb810bfae8f87d487fb507b0ad132af SHA512 c24287ac0d49fda9fdc63421cc1901b8b55fee8b0701436a2d2c809ea03cec666b5a3c941a400bf73f4365576fc2a3bac85060013df76275dcc3dc32d376bbaa
+DIST rust-1.64.0-powerpc64le-unknown-linux-gnu.tar.xz 224504724 BLAKE2B dfe47070e6f9c1812b0d980c98e21c71e3d34ca41d7c4c0995b559a02cf394ec6043500a34f245624588fccd83335c32a4c57bb092b3c079f705ab4d8f1547d9 SHA512 545b1076d7bb3d32775e1a7343cbe1c6feaf5042f7a4524841970846b64251b5bc7be080994f129868f183072fb793f32a8a0ab588ac9b484e25cfac636630b8
+DIST rust-1.64.0-powerpc64le-unknown-linux-gnu.tar.xz.asc 801 BLAKE2B 757dfda571cca4c2028464701970e66fc0a644cf2eec71b52ad6e499b05b3f4af1a9d4515b7ae116b07d5231b8e81ecc0a9e07c9e6603a5babada41e860f6b83 SHA512 fb22306416bb6b3021e53eebb97cb5f34a64873124b0c25409115feba2c2955082456b47b383e4ddaf3ce440b64547d9eabe444b75a78014aa119f7299bec99d
+DIST rust-1.64.0-riscv64gc-unknown-linux-gnu.tar.xz 191293592 BLAKE2B c32eb7b75b33b1eb53eab0b5823ade30c6dcffd8daddf04b7914a5f48ace80873573392659c5bd5a525cd954a9f078cdefba2873a3a1905f58cf9307360a4791 SHA512 b6e97215a5e8fa6f42cd609dd949f598f69779e8318f3c44e757f7c38fc67588db8169e0f263c7f121cdd3bd8c6cc225a32cc3aa80fcd7f718f9bee6f15cd94c
+DIST rust-1.64.0-riscv64gc-unknown-linux-gnu.tar.xz.asc 801 BLAKE2B d922b1c72bd0fb7cfa0455f56d8c6ecee491a96e6bc54c0058ff01d8b152c2a87b4ade33f4445f345564fd1a2c9a54b81b52c1a37a32f1f91a78acc82a568567 SHA512 8860237891950bf1b9b958c950194b3617c5a865bdb1ea7834e84f74781b26959fb8a729d2043ee8cd63ee1144e307691b4adaf252d31c72f4e02ba60cea694e
+DIST rust-1.64.0-s390x-unknown-linux-gnu.tar.xz 225451932 BLAKE2B f7043af9d80b814e8b7988be8ddd2e14df361d08d89e96aed93a99b15719288aee064ed496008e486ee424cd8a9fa0edb78b34addd00646c1359d2bf504317ec SHA512 92702533159a4009be38314f03e26d36b45869709a0bc8f6394dddbd1ff61529f928071dadec36ba325cde589c5ac6b649ffc3c6db625473ed54e1686ada1723
+DIST rust-1.64.0-s390x-unknown-linux-gnu.tar.xz.asc 801 BLAKE2B 64c74bd0bb84f4c751dc1de20d12bfb9370cdf1db7957db07fa2f58ad692a10b8ee11a5c4bedc2f66f0291a91a1346d00de8e6f7ab57cd151003447aa8481dc9 SHA512 6301908c83618b61543c28026682901a342fb562b1cd1a2f78f8b0a388f06ea42b943bf822a67c2c4b1a2b4236250673a9d5bba95b85e182131a97395bffecbc
+DIST rust-1.64.0-x86_64-unknown-linux-gnu.tar.xz 161922032 BLAKE2B e8a0d13deab59b5f6e50aaf5a9fc39e032b759dadf4a7034f8824677de34940fab0e6e430299379f305f0849556608fc7db207db52bea6523ad83abda4e04624 SHA512 ab687e9142963c5f9d6d577022a0783eea9a3473ff6186950d2c6a15640bf7d3042857eaa1bffc1e472385893eded6e171d7f59dce988752830697398c766bd1
+DIST rust-1.64.0-x86_64-unknown-linux-gnu.tar.xz.asc 801 BLAKE2B d13ab08a8ce4b9a92c60ab5b8c21087158b66d9a673b7a960103757a2b12216cab8e7713cda08753a5f5f921aa9c7d571da77a90166d6e7362549a49d6c1a501 SHA512 fda5b45652c0929fea19146dd2c5a895ae4c6db9a1bf448a7364899854ffa06a8eb52b35bfe28c8acdfb1633cd8afe6c5eabd622b7887ed267b1b72220ef4e6f
+DIST rust-1.64.0-x86_64-unknown-linux-musl.tar.xz 265843112 BLAKE2B 2b267b5b9aae610734759a690e36600eeeedab7e0b679e651df269d7b71b147984c1d16cab4658076f05a8a854afc74d83e6e61dac3a8a6bf2b56660d3483285 SHA512 c722ddb6a7bfc5b8767e2a37e697f625b4e775582423720d1b01737ec3269c82e2212f7e5a672a062fa49c8c15c0d2d182ea14dd048cfd9e07704cbc04fd8ef0
+DIST rust-1.64.0-x86_64-unknown-linux-musl.tar.xz.asc 801 BLAKE2B 783791aca41910e8074fd1c7f29e6fc1fdf51f80b1515bac99431305dbe6085574b2b2366c087675b6a9d98931a0cff1117cd864f634fdb4dd53792aab8ce5f9 SHA512 a6d0a72e9edbbc1e6caef7a9c0ec46518b95172afa4a33b2258286458d7b9afe72f9de8411a83567520a126b8377777e125cc639bac197a0495f17120fbcc1ad
 DIST rustc-1.63.0-src.tar.xz 136597192 BLAKE2B 52eb64ee11e7d9724a4c2654f7eea13521959ac5e04a4925eed5c89ec3661a7827146d6f9a9d05c98466bd4b74393af7bb18d9f418c785924f559833434dfe38 SHA512 0dd3cd1546bd9c1438afe0c4694e1ed80507f6b437674682c0474e13f83457e9ced4560ddeee58602e01837140f9e34a9e24c6828643dd6f613e07755af6997c
 DIST rustc-1.63.0-src.tar.xz.asc 801 BLAKE2B b6c133768e368a7aeb0a4612a4c824d13f91ccdca6660feb5774ed6d79537084020780532c882ae3c9e4b6be3d36ceb0652eb134a580293ba8d8be74c4ba3c6e SHA512 f8807d46b9a3ca2a15a60f8062d63b3ee6e3210657cc752c948b3c7aa1626ec63cbd57529d010ad33f07ac47cf70dbf2cb50f200587338f77c631fc9e6786b17
 DIST rustc-1.64.0-src.tar.xz 137841332 BLAKE2B 8acd9e0a4632ba2114018a5cd3f2d544324c601c246658f60a9e0be513c40375434d0a416f0bfd4d24493eae3fec7c9f5bb52d008c88cde14de503a3b6873dd1 SHA512 919f40acd8c6eaaef399aa3248503bea19feb96697ab221aaede9ee789ce340b47cb899d1e0e41a31e5d7756653968a10d2faaa4aee83294c9f1243949b43516
 DIST rustc-1.64.0-src.tar.xz.asc 801 BLAKE2B 69f7bd7600d99794859c6fad4b44f0e98868e4e16041d6fe81d9d09a8435c75abac67a735adb0b81a2d9f85651841d404bc1ef4cd64fccd75e8a25d6d95729d0 SHA512 a831e3941849add1082c5b47b619ea87405b875d6eeb90a35f42742a511d124c29503debd17dcc8c6aa9e03a754ab51c3a15e99192bdd0dd1b8a59af9b6eb0b8
+DIST rustc-1.65.0-src.tar.xz 139674928 BLAKE2B a218263fb67e306b153f5a6dae95b5ec653acaa5eb4b833862d6f0fd4685a8cec097dadc1b8a934e1bf6055672c7a617f9a0ad4a7dbf2e78084297f10b7ada04 SHA512 3d0369ed3028209c4ecb9b9e7b5f5e3a20be8cc05199675df4f091d62a96c0734bc1dbd7630928fe162792392ec6d0daf9ceed10771531ce022200c7b631e3be
+DIST rustc-1.65.0-src.tar.xz.asc 801 BLAKE2B 43ff92011cd6f7f34ce0495fa341379e5907d032ea90f91e533e5edaec6ad518aad50a9d8b2694074d6909ee96aa779403b16e95792e962e79c1b967542ae26f SHA512 75b9be53363022c81333117876cbcc573bbd4733edf767cbb164218644efb1a9c4bfc2aa73aaa1e39f248a84f1adacb1930a94a6e63f60093ff760fb9ae02efc
diff --git a/dev-lang/rust/files/1.65.0-ignore-broken-and-non-applicable-tests.patch b/dev-lang/rust/files/1.65.0-ignore-broken-and-non-applicable-tests.patch
new file mode 100644
index 000000000000..fddda12e6846
--- /dev/null
+++ b/dev-lang/rust/files/1.65.0-ignore-broken-and-non-applicable-tests.patch
@@ -0,0 +1,40 @@
+From 1879d1d1a284bf51c752e47db284ce22701ed5d0 Mon Sep 17 00:00:00 2001
+From: Samuel Holland <samuel@sholland.org>
+Date: Sun, 16 Sep 2018 16:38:48 +0000
+Subject: [PATCH 12/15] Ignore broken and non-applicable tests
+
+c-link-to-rust-va-list-fn: unstable feature, broken on aarch64, #56475
+env-funky-keys: can't handle LD_PRELOAD (e.g. sandbox)
+long-linker-command-lines: takes >10 minutes to run (but still passes)
+simd-intrinsic-generic-bitmask.rs: broken on BE, #59356
+sparc-struct-abi: no sparc target
+sysroot-crates-are-unstable: can't run rustc without RPATH
+---
+ src/test/run-make-fulldeps/sysroot-crates-are-unstable/Makefile | 2 ++
+ src/test/ui/env-funky-keys.rs                                   | 1 +
+ 6 files changed, 10 insertions(+)
+
+diff --git a/src/test/run-make-fulldeps/sysroot-crates-are-unstable/Makefile b/src/test/run-make-fulldeps/sysroot-crates-are-unstable/Makefile
+index 9e770706857..6d92ec5cec8 100644
+--- a/src/test/run-make-fulldeps/sysroot-crates-are-unstable/Makefile
++++ b/src/test/run-make-fulldeps/sysroot-crates-are-unstable/Makefile
+@@ -1,1 +1,3 @@
++# ignore-test
++
+ all:
+         python2.7 test.py
+diff --git a/src/test/ui/env-funky-keys.rs b/src/test/ui/env-funky-keys.rs
+index c5c824ac58d..f3fe047a79c 100644
+--- a/src/test/ui/env-funky-keys.rs
++++ b/src/test/ui/env-funky-keys.rs
+@@ -1,6 +1,7 @@
+ // run-pass
+ // Ignore this test on Android, because it segfaults there.
+ 
++// ignore-test
+ // ignore-android
+ // ignore-windows
+ // ignore-cloudabi no execve
+-- 
+2.24.1
+
diff --git a/dev-lang/rust/rust-1.65.0.ebuild b/dev-lang/rust/rust-1.65.0.ebuild
new file mode 100644
index 000000000000..ade6b118fbd8
--- /dev/null
+++ b/dev-lang/rust/rust-1.65.0.ebuild
@@ -0,0 +1,758 @@
+# Copyright 1999-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+PYTHON_COMPAT=( python3_{8..11} )
+
+inherit bash-completion-r1 check-reqs estack flag-o-matic llvm multiprocessing \
+	multilib multilib-build python-any-r1 rust-toolchain toolchain-funcs verify-sig
+
+if [[ ${PV} = *beta* ]]; then
+	betaver=${PV//*beta}
+	BETA_SNAPSHOT="${betaver:0:4}-${betaver:4:2}-${betaver:6:2}"
+	MY_P="rustc-beta"
+	SLOT="beta/${PV}"
+	SRC="${BETA_SNAPSHOT}/rustc-beta-src.tar.xz -> rustc-${PV}-src.tar.xz"
+else
+	ABI_VER="$(ver_cut 1-2)"
+	SLOT="stable/${ABI_VER}"
+	MY_P="rustc-${PV}"
+	SRC="${MY_P}-src.tar.xz"
+	KEYWORDS="~amd64 ~arm ~arm64 ~mips ~ppc64 ~riscv ~sparc ~x86"
+fi
+
+RUST_STAGE0_VERSION="1.$(($(ver_cut 2) - 1)).0"
+
+DESCRIPTION="Systems programming language from Mozilla"
+HOMEPAGE="https://www.rust-lang.org/"
+
+SRC_URI="
+	https://static.rust-lang.org/dist/${SRC}
+	verify-sig? ( https://static.rust-lang.org/dist/${SRC}.asc )
+	!system-bootstrap? ( $(rust_all_arch_uris rust-${RUST_STAGE0_VERSION}) )
+"
+
+# keep in sync with llvm ebuild of the same version as bundled one.
+ALL_LLVM_TARGETS=( AArch64 AMDGPU ARM AVR BPF Hexagon Lanai Mips MSP430
+	NVPTX PowerPC RISCV Sparc SystemZ WebAssembly X86 XCore )
+ALL_LLVM_TARGETS=( "${ALL_LLVM_TARGETS[@]/#/llvm_targets_}" )
+LLVM_TARGET_USEDEPS=${ALL_LLVM_TARGETS[@]/%/(-)?}
+
+LICENSE="|| ( MIT Apache-2.0 ) BSD-1 BSD-2 BSD-4 UoI-NCSA"
+
+IUSE="clippy cpu_flags_x86_sse2 debug dist doc llvm-libunwind miri nightly parallel-compiler profiler rls rustfmt rust-analyzer rust-src system-bootstrap system-llvm test wasm ${ALL_LLVM_TARGETS[*]}"
+
+# Please keep the LLVM dependency block separate. Since LLVM is slotted,
+# we need to *really* make sure we're not pulling more than one slot
+# simultaneously.
+
+# How to use it:
+# List all the working slots in LLVM_VALID_SLOTS, newest first.
+LLVM_VALID_SLOTS=( 15 )
+LLVM_MAX_SLOT="${LLVM_VALID_SLOTS[0]}"
+
+# splitting usedeps needed to avoid CI/pkgcheck's UncheckableDep limitation
+# (-) usedep needed because we may build with older llvm without that target
+LLVM_DEPEND="|| ( "
+for _s in ${LLVM_VALID_SLOTS[@]}; do
+	LLVM_DEPEND+=" ( "
+	for _x in ${ALL_LLVM_TARGETS[@]}; do
+		LLVM_DEPEND+="
+			${_x}? ( sys-devel/llvm:${_s}[${_x}(-)] )
+			wasm? ( sys-devel/lld:${_s} )"
+	done
+	LLVM_DEPEND+=" )"
+done
+unset _s _x
+LLVM_DEPEND+=" )
+	<sys-devel/llvm-$(( LLVM_MAX_SLOT + 1 )):=
+"
+
+# to bootstrap we need at least exactly previous version, or same.
+# most of the time previous versions fail to bootstrap with newer
+# for example 1.47.x, requires at least 1.46.x, 1.47.x is ok,
+# but it fails to bootstrap with 1.48.x
+# https://github.com/rust-lang/rust/blob/${PV}/src/stage0.json
+RUST_DEP_PREV="$(ver_cut 1).$(($(ver_cut 2) - 1))*"
+RUST_DEP_CURR="$(ver_cut 1).$(ver_cut 2)*"
+BOOTSTRAP_DEPEND="||
+	(
+		=dev-lang/rust-"${RUST_DEP_PREV}"
+		=dev-lang/rust-bin-"${RUST_DEP_PREV}"
+		=dev-lang/rust-"${RUST_DEP_CURR}"
+		=dev-lang/rust-bin-"${RUST_DEP_CURR}"
+	)
+"
+
+BDEPEND="${PYTHON_DEPS}
+	app-eselect/eselect-rust
+	|| (
+		>=sys-devel/gcc-4.7
+		>=sys-devel/clang-3.5
+	)
+	system-bootstrap? ( ${BOOTSTRAP_DEPEND} )
+	!system-llvm? (
+		>=dev-util/cmake-3.13.4
+		dev-util/ninja
+	)
+	test? ( sys-devel/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? (
+		${LLVM_DEPEND}
+		llvm-libunwind? ( sys-libs/llvm-libunwind:= )
+	)
+	!system-llvm? (
+		!llvm-libunwind? (
+			elibc_musl? ( sys-libs/libunwind:= )
+		)
+	)
+"
+
+RDEPEND="${DEPEND}
+	app-eselect/eselect-rust
+	sys-apps/lsb-release
+"
+
+REQUIRED_USE="|| ( ${ALL_LLVM_TARGETS[*]} )
+	miri? ( nightly )
+	parallel-compiler? ( nightly )
+	rls? ( 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}/${PV}/bin/.*
+	usr/lib/${PN}/${PV}/libexec/.*
+	usr/lib/${PN}/${PV}/lib/lib.*.so
+	usr/lib/${PN}/${PV}/lib/rustlib/.*/bin/.*
+	usr/lib/${PN}/${PV}/lib/rustlib/.*/lib/lib.*.so
+"
+
+QA_SONAME="
+	usr/lib/${PN}/${PV}/lib/lib.*.so.*
+	usr/lib/${PN}/${PV}/lib/rustlib/.*/lib/lib.*.so
+"
+
+QA_PRESTRIPPED="
+	usr/lib/${PN}/${PV}/lib/rustlib/.*/bin/rust-llvm-dwp
+	usr/lib/${PN}/${PV}/lib/rustlib/.*/lib/self-contained/crtn.o
+"
+
+# An rmeta file is custom binary format that contains the metadata for the crate.
+# rmeta files do not support linking, since they do not contain compiled object files.
+# so we can safely silence the warning for this QA check.
+QA_EXECSTACK="usr/lib/${PN}/${PV}/lib/rustlib/*/lib*.rlib:lib.rmeta"
+
+# causes double bootstrap
+RESTRICT="test"
+
+VERIFY_SIG_OPENPGP_KEY_PATH=${BROOT}/usr/share/openpgp-keys/rust.asc
+
+PATCHES=(
+	"${FILESDIR}"/1.65.0-ignore-broken-and-non-applicable-tests.patch
+	"${FILESDIR}"/1.62.1-musl-dynamic-linking.patch
+	"${FILESDIR}"/1.64.0-vendor-rustix-sparc-has-no-SIGSTKFLT.patch
+)
+
+S="${WORKDIR}/${MY_P}-src"
+
+toml_usex() {
+	usex "${1}" true false
+}
+
+bootstrap_rust_version_check() {
+	# never call from pkg_pretend. eselect-rust may be not installed yet.
+	[[ ${MERGE_TYPE} == binary ]] && return
+	local rustc_wanted="$(ver_cut 1).$(($(ver_cut 2) - 1))"
+	local rustc_toonew="$(ver_cut 1).$(($(ver_cut 2) + 1))"
+	local rustc_version=( $(eselect --brief rust show 2>/dev/null) )
+	rustc_version=${rustc_version[0]#rust-bin-}
+	rustc_version=${rustc_version#rust-}
+
+	[[ -z "${rustc_version}" ]] && die "Failed to determine rust version, check 'eselect rust' output"
+
+	if ver_test "${rustc_version}" -lt "${rustc_wanted}" ; then
+		eerror "Rust >=${rustc_wanted} is required"
+		eerror "please run 'eselect rust' and set correct rust version"
+		die "selected rust version is too old"
+	elif ver_test "${rustc_version}" -ge "${rustc_toonew}" ; then
+		eerror "Rust <${rustc_toonew} is required"
+		eerror "please run 'eselect rust' and set correct rust version"
+		die "selected rust version is too new"
+	else
+		einfo "Using rust ${rustc_version} to build"
+	fi
+}
+
+pre_build_checks() {
+	local M=8192
+	# multiply requirements by 1.3 if we are doing x86-multilib
+	if use amd64; then
+		M=$(( $(usex abi_x86_32 13 10) * ${M} / 10 ))
+	fi
+	M=$(( $(usex clippy 128 0) + ${M} ))
+	M=$(( $(usex miri 128 0) + ${M} ))
+	M=$(( $(usex rls 512 0) + ${M} ))
+	M=$(( $(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 system-bootstrap 0 1024) + ${M} ))
+	M=$(( $(usex doc 256 0) + ${M} ))
+	CHECKREQS_DISK_BUILD=${M}M check-reqs_pkg_${EBUILD_PHASE}
+}
+
+llvm_check_deps() {
+	has_version -r "sys-devel/llvm:${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
+	[[ ${out} == *HAVE_LIBCXX* ]]
+}
+
+pkg_pretend() {
+	pre_build_checks
+}
+
+pkg_setup() {
+	pre_build_checks
+	python-any-r1_pkg_setup
+
+	export LIBGIT2_NO_PKG_CONFIG=1 #749381
+
+	use system-bootstrap && bootstrap_rust_version_check
+
+	if use system-llvm; then
+		llvm_pkg_setup
+
+		local llvm_config="$(get_llvm_prefix "${LLVM_MAX_SLOT}")/bin/llvm-config"
+		export LLVM_LINK_SHARED=1
+		export RUSTFLAGS="${RUSTFLAGS} -Lnative=$("${llvm_config}" --libdir)"
+	fi
+}
+
+esetup_unwind_hack() {
+	# https://bugs.gentoo.org/870280
+	# this is a hack needed to bootstrap with libgcc_s linked tarball on llvm-libunwind system.
+	# it should trigger for internal bootstrap or system-bootstrap with rust-bin.
+	# the whole idea is for stage0 to bootstrap with fake libgcc_s.
+	# final stage will receive -L${T}/lib but not -lgcc_s args, producing clean compiler.
+	local fakelib="${T}/fakelib"
+	mkdir -p "${fakelib}" || die
+	# we need both symlinks, one for cargo runtime, other for linker.
+	ln -s "${ESYSROOT}/usr/lib/libunwind.so" "${fakelib}/libgcc_s.so.1" || die
+	ln -s "${ESYSROOT}/usr/lib/libunwind.so" "${fakelib}/libgcc_s.so" || die
+	export LD_LIBRARY_PATH="${fakelib}"
+	export RUSTFLAGS+=" -L${fakelib}"
+	# this is a literally magic variable that gets through cargo cache, without it some
+	# crates ignore RUSTFLAGS.
+	# this variable can not contain leading space.
+	export MAGIC_EXTRA_RUSTFLAGS+="${MAGIC_EXTRA_RUSTFLAGS:+ }-L${fakelib}"
+}
+
+src_prepare() {
+	# this supidity is needed because patch is too large to be in filesdir
+	# and if we move it to devspace - it lacks checksum for sig verification
+	if [[ "${PV}" == 1.65.0 ]]; then
+			sed -i \
+			-e 's/516ba32a547b46a8e80ad20d4a17bf24a00bff0b69b74f56df119f770f3dfff6/fc7eb88c2f5104865379128b76767d36ce5b5fdb9f3483e683d150e514ebc3a3/' \
+			-e 's/fba10dc8ca9eaf4d481cb82bd1540cf5c05620533c44f917c09a22ea55ef408c/9cc4d1b4511a1f0d91231eb0f11c67ae5e8e38e4becd0bf5eb9e26d043796056/' \
+			vendor/rustix/.cargo-checksum.json || die
+	else
+		die "remove sed mr forgetful maintainer"
+	fi
+	if ! use system-bootstrap; then
+		has_version sys-devel/gcc || esetup_unwind_hack
+		local rust_stage0_root="${WORKDIR}"/rust-stage0
+		local rust_stage0="rust-${RUST_STAGE0_VERSION}-$(rust_abi)"
+
+		"${WORKDIR}/${rust_stage0}"/install.sh --disable-ldconfig \
+			--without=rust-docs --destdir="${rust_stage0_root}" --prefix=/ || die
+	fi
+
+	default
+}
+
+src_configure() {
+	filter-flags '-flto*' # 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 ${v##*.}))\""
+	done
+	if use wasm; then
+		rust_targets+=",\"wasm32-unknown-unknown\""
+		if use system-llvm; then
+			# un-hardcode rust-lld linker for this target
+			# https://bugs.gentoo.org/715348
+			sed -i '/linker:/ s/rust-lld/wasm-ld/' compiler/rustc_target/src/spec/wasm_base.rs || die
+		fi
+	fi
+	rust_targets="${rust_targets#,}"
+
+	local tools='"cargo"'
+	use clippy && tools+=',"clippy"'
+	use miri && tools+=',"miri"'
+	use profiler && tools+=',"rust-demangler"'
+	use rls && tools+=',"rls","analysis"'
+	use rustfmt && tools+=',"rustfmt"'
+	use rust-analyzer && tools+=',"rust-analyzer"'
+	use rust-src && tools+=',"src"'
+
+	local rust_stage0_root
+	if use system-bootstrap; then
+		local printsysroot
+		printsysroot="$(rustc --print sysroot || die "Can't determine rust's sysroot")"
+		rust_stage0_root="${printsysroot}"
+	else
+		rust_stage0_root="${WORKDIR}"/rust-stage0
+	fi
+	# 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="$(rust_abi)"
+
+	local cm_btype="$(usex debug DEBUG RELEASE)"
+	cat <<- _EOF_ > "${S}"/config.toml
+		changelog-seen = 2
+		[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 = ""
+		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)
+		[llvm.build-config]
+		CMAKE_VERBOSE_MAKEFILE = "ON"
+		CMAKE_C_FLAGS_${cm_btype} = "${CFLAGS}"
+		CMAKE_CXX_FLAGS_${cm_btype} = "${CXXFLAGS}"
+		CMAKE_EXE_LINKER_FLAGS_${cm_btype} = "${LDFLAGS}"
+		CMAKE_MODULE_LINKER_FLAGS_${cm_btype} = "${LDFLAGS}"
+		CMAKE_SHARED_LINKER_FLAGS_${cm_btype} = "${LDFLAGS}"
+		CMAKE_STATIC_LINKER_FLAGS_${cm_btype} = "${ARFLAGS}"
+		[build]
+		build-stage = 2
+		test-stage = 2
+		build = "${rust_target}"
+		host = ["${rust_target}"]
+		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 = $(toml_usex profiler)
+		cargo-native-static = false
+		[install]
+		prefix = "${EPREFIX}/usr/lib/${PN}/${PV}"
+		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 = $(usex debug 2 0)
+		debuginfo-level-tests = 0
+		backtrace = true
+		incremental = false
+		default-linker = "$(tc-getCC)"
+		parallel-compiler = $(toml_usex parallel-compiler)
+		channel = "$(usex nightly nightly stable)"
+		description = "gentoo"
+		rpath = false
+		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
+		[dist]
+		src-tarball = false
+		compression-formats = ["xz"]
+	_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 = "$(get_llvm_prefix "${LLVM_MAX_SLOT}")/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_ >> "${S}"/config.toml
+				crt-static = false
+			_EOF_
+		fi
+	done
+	if use wasm; then
+		cat <<- _EOF_ >> "${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 "${LLVM_MAX_SLOT}")/bin/llvm-config"
+			_EOF_
+		fi
+		if [[ "${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 "${EPYTHON}" ./x.py build -vv --config="${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$(makeopts_jobs) || die
+
+	# bug #689562, #689160
+	rm -v "${ED}/usr/lib/${PN}/${PV}/etc/bash_completion.d/cargo" || die
+	rmdir -v "${ED}/usr/lib/${PN}/${PV}"/etc{/bash_completion.d,} || die
+	newbashcomp src/tools/cargo/src/etc/cargo.bashcomp.sh cargo
+
+	local symlinks=(
+		cargo
+		rustc
+		rustdoc
+		rust-gdb
+		rust-gdbgui
+		rust-lldb
+	)
+
+	use clippy && symlinks+=( clippy-driver cargo-clippy )
+	use miri && symlinks+=( miri cargo-miri )
+	use profiler && symlinks+=( rust-demangler )
+	use rls && symlinks+=( rls )
+	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}/${PV}/bin/${i}" ]]; then
+			einfo "Installing ${i} symlink"
+			ln -v "${ED}/usr/lib/${PN}/${PV}/bin/${i}" "${ED}/usr/lib/${PN}/${PV}/bin/${ver_i}" || die
+		else
+			ewarn "${i} symlink requested, but source file not found"
+			ewarn "please report this"
+		fi
+		dosym "../lib/${PN}/${PV}/bin/${ver_i}" "/usr/bin/${ver_i}"
+	done
+
+	# symlinks to switch components to active rust in eselect
+	dosym "${PV}/lib" "/usr/lib/${PN}/lib-${PV}"
+	dosym "${PV}/libexec" "/usr/lib/${PN}/libexec-${PV}"
+	dosym "${PV}/share/man" "/usr/lib/${PN}/man-${PV}"
+	dosym "rust/${PV}/lib/rustlib" "/usr/lib/rustlib-${PV}"
+	dosym "../../lib/${PN}/${PV}/share/doc/rust" "/usr/share/doc/${P}"
+
+	newenvd - "50${P}" <<-_EOF_
+		LDPATH="${EPREFIX}/usr/lib/rust/lib"
+		MANPATH="${EPREFIX}/usr/lib/rust/man"
+	_EOF_
+
+	rm -rf "${ED}/usr/lib/${PN}/${PV}"/*.old || die
+	rm -rf "${ED}/usr/lib/${PN}/${PV}/doc"/*.old || die
+
+	# note: eselect-rust adds EROOT to all paths below
+	cat <<-_EOF_ > "${T}/provider-${P}"
+		/usr/bin/cargo
+		/usr/bin/rustdoc
+		/usr/bin/rust-gdb
+		/usr/bin/rust-gdbgui
+		/usr/bin/rust-lldb
+		/usr/lib/rustlib
+		/usr/lib/rust/lib
+		/usr/lib/rust/libexec
+		/usr/lib/rust/man
+		/usr/share/doc/rust
+	_EOF_
+
+	if use clippy; then
+		echo /usr/bin/clippy-driver >> "${T}/provider-${P}"
+		echo /usr/bin/cargo-clippy >> "${T}/provider-${P}"
+	fi
+	if use miri; then
+		echo /usr/bin/miri >> "${T}/provider-${P}"
+		echo /usr/bin/cargo-miri >> "${T}/provider-${P}"
+	fi
+	if use profiler; then
+		echo /usr/bin/rust-demangler >> "${T}/provider-${P}"
+	fi
+	if use rls; then
+		echo /usr/bin/rls >> "${T}/provider-${P}"
+	fi
+	if use rustfmt; then
+		echo /usr/bin/rustfmt >> "${T}/provider-${P}"
+		echo /usr/bin/cargo-fmt >> "${T}/provider-${P}"
+	fi
+	if use rust-analyzer; then
+		echo /usr/bin/rust-analyzer >> "${T}/provider-${P}"
+	fi
+
+	insinto /etc/env.d/rust
+	doins "${T}/provider-${P}"
+
+	if use dist; then
+		insinto "/usr/lib/${PN}/${PV}/dist"
+		doins -r "${S}/build/dist/."
+	fi
+}
+
+pkg_postinst() {
+	eselect rust update
+
+	if has_version sys-devel/gdb || has_version dev-util/lldb; then
+		elog "Rust installs a helper script for calling GDB and LLDB,"
+		elog "for your convenience it is installed under /usr/bin/rust-{gdb,lldb}-${PV}."
+	fi
+
+	if has_version app-editors/emacs; then
+		elog "install app-emacs/rust-mode to get emacs support for rust."
+	fi
+
+	if has_version app-editors/gvim || has_version app-editors/vim; then
+		elog "install app-vim/rust-vim to get vim support for rust."
+	fi
+}
+
+pkg_postrm() {
+	eselect rust cleanup
+}