gentoo resync : 28.04.2021

13 files changed, 626 insertions, 583 deletions

diff --git a/dev-lang/rust/files/0012-Ignore-broken-and-non-applicable-tests.patch b/dev-lang/rust/files/0012-Ignore-broken-and-non-applicable-tests.patch
deleted file mode 100644
index 45fda8aeaf8f..000000000000
--- a/dev-lang/rust/files/0012-Ignore-broken-and-non-applicable-tests.patch
+++ /dev/null
@@ -1,89 +0,0 @@
-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/codegen/sparc-struct-abi.rs                            | 1 +
- src/test/run-make-fulldeps/c-link-to-rust-va-list-fn/Makefile   | 2 ++
- src/test/run-make-fulldeps/long-linker-command-lines/Makefile   | 2 ++
- src/test/run-make-fulldeps/sysroot-crates-are-unstable/Makefile | 2 ++
- src/test/ui/env-funky-keys.rs                                   | 1 +
- src/test/ui/simd/simd-intrinsic-generic-bitmask.rs              | 2 ++
- 6 files changed, 10 insertions(+)
-
-diff --git a/src/test/codegen/sparc-struct-abi.rs b/src/test/codegen/sparc-struct-abi.rs
-index 78e5b14a212..6f93e93286b 100644
---- a/src/test/codegen/sparc-struct-abi.rs
-+++ b/src/test/codegen/sparc-struct-abi.rs
-@@ -4,6 +4,7 @@
- 
- // only-sparc64
- // compile-flags: -O --target=sparc64-unknown-linux-gnu --crate-type=rlib
-+// ignore-test
- #![feature(no_core, lang_items)]
- #![no_core]
- 
-diff --git a/src/test/run-make-fulldeps/c-link-to-rust-va-list-fn/Makefile b/src/test/run-make-fulldeps/c-link-to-rust-va-list-fn/Makefile
-index f124ca2ab61..363b18f0985 100644
---- a/src/test/run-make-fulldeps/c-link-to-rust-va-list-fn/Makefile
-+++ b/src/test/run-make-fulldeps/c-link-to-rust-va-list-fn/Makefile
-@@ -1,3 +1,5 @@
-+# ignore-aarch64
-+
- -include ../tools.mk
- 
- all:
-diff --git a/src/test/run-make-fulldeps/long-linker-command-lines/Makefile b/src/test/run-make-fulldeps/long-linker-command-lines/Makefile
-index 5876fbc94bc..5f167ece1a2 100644
---- a/src/test/run-make-fulldeps/long-linker-command-lines/Makefile
-+++ b/src/test/run-make-fulldeps/long-linker-command-lines/Makefile
-@@ -1,3 +1,5 @@
-+# ignore-test
-+
- -include ../tools.mk
- 
- all:
-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
-diff --git a/src/test/ui/simd/simd-intrinsic-generic-bitmask.rs b/src/test/ui/simd/simd-intrinsic-generic-bitmask.rs
-index b28f742a92e..3ee4ccce731 100644
---- a/src/test/ui/simd/simd-intrinsic-generic-bitmask.rs
-+++ b/src/test/ui/simd/simd-intrinsic-generic-bitmask.rs
-@@ -2,6 +2,8 @@
- #![allow(non_camel_case_types)]
- 
- // ignore-emscripten
-+// ignore-powerpc
-+// ignore-powerpc64
- 
- // Test that the simd_bitmask intrinsic produces correct results.
- 
--- 
-2.24.1
-
diff --git a/dev-lang/rust/files/1.44.0-libressl.patch b/dev-lang/rust/files/1.44.0-libressl.patch
deleted file mode 100644
index 3bbae36e0161..000000000000
--- a/dev-lang/rust/files/1.44.0-libressl.patch
+++ /dev/null
@@ -1,45 +0,0 @@
-From 3d1be8d8981a0f847e935312a78bd2ba5129f90e Mon Sep 17 00:00:00 2001
-From: Stefan Strogin <steils@gentoo.org>
-Date: Fri, 5 Jun 2020 06:37:06 +0300
-Subject: [PATCH] Support LibreSSL 3.2.x
-
-Signed-off-by: Stefan Strogin <steils@gentoo.org>
----
- vendor/openssl-sys/.cargo-checksum.json | 2 +-
- vendor/openssl-sys/build/main.rs        | 5 ++++-
- 2 files changed, 5 insertions(+), 2 deletions(-)
-
-diff --git a/vendor/openssl-sys/.cargo-checksum.json b/vendor/openssl-sys/.cargo-checksum.json
-index 7f63bae3d..76025fe7f 100644
---- a/vendor/openssl-sys/.cargo-checksum.json
-+++ b/vendor/openssl-sys/.cargo-checksum.json
-@@ -1 +1 @@
--{"files":{"CHANGELOG.md":"ffd4bbaeec2740afbcab5a6828f9e65523aaff8638e3d5d13c93a3241fb8ed2f","Cargo.toml":"3eb2f65dda1aa74c8b47814878b56bf4999b4d01bc5864fc9f3c0ece9a5694a7","LICENSE-MIT":"378f5840b258e2779c39418f3f2d7b2ba96f1c7917dd6be0713f88305dbda397","README.md":"949fb3913ec7f94229242978dfeee5e19261b6d7506fc91dcd153bb0d2a84895","build/cfgs.rs":"56cee620b082d87b1c9cdeba7c6c022e6aa7d3a99e2b66ec18a534ceaf2e2bb7","build/expando.c":"c4fa8a4424b2321f1857edfc5ce1ac1f03eda54440367d3142310c0eb5553004","build/find_normal.rs":"0a2dc417eace7fc72c27b9046ebaf53c75e418b27baa877434925a81fe6c23ed","build/find_vendored.rs":"7bf0e59c5646d72ee5a4392ad970fdf5c20288ddaf54dd86a8caff49583b38f5","build/main.rs":"6e800f4dc5c2cbbd54d1b1b995a2915ff941e17e11300d7091858210d3ce788d","src/aes.rs":"822bf666db351fe6ef9607c918081d6ad378fc1cedb05290bb746f86980c6088","src/asn1.rs":"254025cb408dbeff73bee6d06325acba9042cb11db30bdad04eedfb789be84b3","src/bio.rs":"1f38a3ec4029511fecd7a51548965a265f3e7772891b5514e22bfb1d061b3a90","src/bn.rs":"c71b9c79f704a94a889d27bf75e7e5b1f9f10b0df0aeb485aef509cf05d7467f","src/cms.rs":"f21a403fea95e7b7efe0539a429831cfa51c8818adb79c7ebf73ae2a6f2dc87e","src/conf.rs":"511e008c18039f54d856d70b80009426fc7f4ce34fe4304e2c58ebf465031de0","src/crypto.rs":"a1279719ade9704be3d9af55ff679abbe918d525f332ca15810146d45e9080cf","src/dh.rs":"7cc334e86d16b3eae165dfa3a6c8e488bc0fe590c17beda38893d2e9d784d5a6","src/dsa.rs":"ae79baf231681900ea76304285b3ffacf5298c90b8c04d371269cf4adbb5b9fa","src/dtls1.rs":"45e1dbf94a42d587fd948d553dc30187aa6aa2b5b82d554cf725ff36df768aa0","src/ec.rs":"81372dfe497db2fc90457a470a3b8ccb249828b3ce2bf4fd2da8ec42afd6a6b3","src/err.rs":"f6641be5df397086a9db80667e191fb1d92972c29151e617df86672c1a16d3ad","src/evp.rs":"5afdfc0ab87259b13a55375c178ae3af934b3281240aa24ca27afac7acccea42","src/hmac.rs":"fa3976d94a1383f300bdec228270afb8b47c97bb019d727c7d59ba783be3c42e","src/lib.rs":"c464eca1beb33844718044946f6ffb1bc27356d65b5b70ebcd2d4082520e7235","src/macros.rs":"638fb9098f6024e82b331eeee50c64cefdb58456dba28ee42560be655a0c2bf6","src/obj_mac.rs":"7203d356f7654c5805600b823eccf8e1d9d9cbce9a01859938612a3f0aae4cdc","src/object.rs":"7539eb2164c3fe2162a339ef5b45f1c835010a1522307803815779a01825eed7","src/ocsp.rs":"1db59566d2f072f7ae981f0c07e1604fcdf60e66845afe0689d588f8e4272115","src/ossl_typ.rs":"13bf789702e37dc4b9f74f3a0e61ae6e5602e4dedf45c05d884c41257b32d76c","src/pem.rs":"4427060f543ae9e6745d9a8f7f76cb72acfb06afacaf396b011afff6a221714b","src/pkcs12.rs":"93aab2820008ad90dc346a7dcc02f9201d94bff0bb7d1d71031c097850287c50","src/pkcs7.rs":"5370c8d4bfbf1502fa33aff635cb730e7c87814580f1df9bdb1412a492377813","src/rand.rs":"469601b4fbb56d4dbf5cf5d7bb8483e3bde411edea18601e7d1ed6ef27180fd3","src/rsa.rs":"0e8c1f0bc37620a9208175542143bfd411ae88188974d2d5b37a2b8b77d0e2c8","src/safestack.rs":"6c39e28565d34efad707d77561d4caa99e3f028fcac3a2ef6fd403a78de1190c","src/sha.rs":"1a6b028a63654d2419417a9a8af790cd22409a4643682a0686ecdb9441264eba","src/srtp.rs":"306047f3f31828fe7d15de154b375f071ae07012a94c0b5c909f5fe57962a11b","src/ssl.rs":"34ad7d5413d77f9052815cfd7344d5a21868b5ae0d38dadd6f4ed3b5c4b33760","src/ssl3.rs":"9336c816e00847d552dea22587d4ac72ff3cbd469fa5ff750423a19ea11e68eb","src/stack.rs":"1a509907283e5a2bf88cf193ce607f49ce7d2d95547c2ce2abc0fd4567aad334","src/tls1.rs":"60ca3dea1bbfda645bde563b4a878dac129c3f760e3ad572381000fc7a8ef522","src/x509.rs":"20e221731587221aab00aef21b4e4bebb7635603d265d424f3dd3c60d4c511e2","src/x509_vfy.rs":"5609f6300ab37a4d4755c81f7af1e6bb93a2f1a6f333c6e42f1e73ebf83ddc05","src/x509v3.rs":"30c58ce7d80670cc597d041e0f59862c1100e38743fc9dde2aec6dc811a4a558"},"package":"1024c0a59774200a555087a6da3f253a9095a5f344e353b212ac4c8b8e450986"}
-\ No newline at end of file
-+{"files":{"CHANGELOG.md":"ffd4bbaeec2740afbcab5a6828f9e65523aaff8638e3d5d13c93a3241fb8ed2f","Cargo.toml":"3eb2f65dda1aa74c8b47814878b56bf4999b4d01bc5864fc9f3c0ece9a5694a7","LICENSE-MIT":"378f5840b258e2779c39418f3f2d7b2ba96f1c7917dd6be0713f88305dbda397","README.md":"949fb3913ec7f94229242978dfeee5e19261b6d7506fc91dcd153bb0d2a84895","build/cfgs.rs":"56cee620b082d87b1c9cdeba7c6c022e6aa7d3a99e2b66ec18a534ceaf2e2bb7","build/expando.c":"c4fa8a4424b2321f1857edfc5ce1ac1f03eda54440367d3142310c0eb5553004","build/find_normal.rs":"0a2dc417eace7fc72c27b9046ebaf53c75e418b27baa877434925a81fe6c23ed","build/find_vendored.rs":"7bf0e59c5646d72ee5a4392ad970fdf5c20288ddaf54dd86a8caff49583b38f5","build/main.rs":"049f7020b6a1f8bb831cb750054fbc0f408e048e34c0817644696ec9d0cfb06e","src/aes.rs":"822bf666db351fe6ef9607c918081d6ad378fc1cedb05290bb746f86980c6088","src/asn1.rs":"254025cb408dbeff73bee6d06325acba9042cb11db30bdad04eedfb789be84b3","src/bio.rs":"1f38a3ec4029511fecd7a51548965a265f3e7772891b5514e22bfb1d061b3a90","src/bn.rs":"c71b9c79f704a94a889d27bf75e7e5b1f9f10b0df0aeb485aef509cf05d7467f","src/cms.rs":"f21a403fea95e7b7efe0539a429831cfa51c8818adb79c7ebf73ae2a6f2dc87e","src/conf.rs":"511e008c18039f54d856d70b80009426fc7f4ce34fe4304e2c58ebf465031de0","src/crypto.rs":"a1279719ade9704be3d9af55ff679abbe918d525f332ca15810146d45e9080cf","src/dh.rs":"7cc334e86d16b3eae165dfa3a6c8e488bc0fe590c17beda38893d2e9d784d5a6","src/dsa.rs":"ae79baf231681900ea76304285b3ffacf5298c90b8c04d371269cf4adbb5b9fa","src/dtls1.rs":"45e1dbf94a42d587fd948d553dc30187aa6aa2b5b82d554cf725ff36df768aa0","src/ec.rs":"81372dfe497db2fc90457a470a3b8ccb249828b3ce2bf4fd2da8ec42afd6a6b3","src/err.rs":"f6641be5df397086a9db80667e191fb1d92972c29151e617df86672c1a16d3ad","src/evp.rs":"5afdfc0ab87259b13a55375c178ae3af934b3281240aa24ca27afac7acccea42","src/hmac.rs":"fa3976d94a1383f300bdec228270afb8b47c97bb019d727c7d59ba783be3c42e","src/lib.rs":"c464eca1beb33844718044946f6ffb1bc27356d65b5b70ebcd2d4082520e7235","src/macros.rs":"638fb9098f6024e82b331eeee50c64cefdb58456dba28ee42560be655a0c2bf6","src/obj_mac.rs":"7203d356f7654c5805600b823eccf8e1d9d9cbce9a01859938612a3f0aae4cdc","src/object.rs":"7539eb2164c3fe2162a339ef5b45f1c835010a1522307803815779a01825eed7","src/ocsp.rs":"1db59566d2f072f7ae981f0c07e1604fcdf60e66845afe0689d588f8e4272115","src/ossl_typ.rs":"13bf789702e37dc4b9f74f3a0e61ae6e5602e4dedf45c05d884c41257b32d76c","src/pem.rs":"4427060f543ae9e6745d9a8f7f76cb72acfb06afacaf396b011afff6a221714b","src/pkcs12.rs":"93aab2820008ad90dc346a7dcc02f9201d94bff0bb7d1d71031c097850287c50","src/pkcs7.rs":"5370c8d4bfbf1502fa33aff635cb730e7c87814580f1df9bdb1412a492377813","src/rand.rs":"469601b4fbb56d4dbf5cf5d7bb8483e3bde411edea18601e7d1ed6ef27180fd3","src/rsa.rs":"0e8c1f0bc37620a9208175542143bfd411ae88188974d2d5b37a2b8b77d0e2c8","src/safestack.rs":"6c39e28565d34efad707d77561d4caa99e3f028fcac3a2ef6fd403a78de1190c","src/sha.rs":"1a6b028a63654d2419417a9a8af790cd22409a4643682a0686ecdb9441264eba","src/srtp.rs":"306047f3f31828fe7d15de154b375f071ae07012a94c0b5c909f5fe57962a11b","src/ssl.rs":"34ad7d5413d77f9052815cfd7344d5a21868b5ae0d38dadd6f4ed3b5c4b33760","src/ssl3.rs":"9336c816e00847d552dea22587d4ac72ff3cbd469fa5ff750423a19ea11e68eb","src/stack.rs":"1a509907283e5a2bf88cf193ce607f49ce7d2d95547c2ce2abc0fd4567aad334","src/tls1.rs":"60ca3dea1bbfda645bde563b4a878dac129c3f760e3ad572381000fc7a8ef522","src/x509.rs":"20e221731587221aab00aef21b4e4bebb7635603d265d424f3dd3c60d4c511e2","src/x509_vfy.rs":"5609f6300ab37a4d4755c81f7af1e6bb93a2f1a6f333c6e42f1e73ebf83ddc05","src/x509v3.rs":"30c58ce7d80670cc597d041e0f59862c1100e38743fc9dde2aec6dc811a4a558"},"package":"1024c0a59774200a555087a6da3f253a9095a5f344e353b212ac4c8b8e450986"}
-diff --git a/vendor/openssl-sys/build/main.rs b/vendor/openssl-sys/build/main.rs
-index 162e11a66..6754ddeef 100644
---- a/vendor/openssl-sys/build/main.rs
-+++ b/vendor/openssl-sys/build/main.rs
-@@ -204,6 +204,9 @@ See rust-openssl README for more information:
-             (3, 0, 0) => ('3', '0', '0'),
-             (3, 0, 1) => ('3', '0', '1'),
-             (3, 0, _) => ('3', '0', 'x'),
-+            (3, 1, 0) => ('3', '1', '0'),
-+            (3, 1, _) => ('3', '1', 'x'),
-+            (3, 2, _) => ('3', '2', 'x'),
-             _ => version_error(),
-         };
- 
-@@ -244,7 +247,7 @@ fn version_error() -> ! {
-         "
- 
- This crate is only compatible with OpenSSL 1.0.1 through 1.1.1, or LibreSSL 2.5
--through 3.0.x, but a different version of OpenSSL was found. The build is now aborting
-+through 3.2.x, but a different version of OpenSSL was found. The build is now aborting
- due to this version mismatch.
- 
- "
--- 
-2.27.0
-
diff --git a/dev-lang/rust/files/1.46.0-don-t-create-prefix-at-time-of-check.patch b/dev-lang/rust/files/1.46.0-don-t-create-prefix-at-time-of-check.patch
deleted file mode 100644
index 9064a52ac2d3..000000000000
--- a/dev-lang/rust/files/1.46.0-don-t-create-prefix-at-time-of-check.patch
+++ /dev/null
@@ -1,31 +0,0 @@
-From 6b31232a9d32529e30765108f30365ac48587ce6 Mon Sep 17 00:00:00 2001
-From: Georgy Yakovlev <gyakovlev@gentoo.org>
-Date: Thu, 8 Oct 2020 15:48:33 -0700
-Subject: [PATCH] don't create prefix at time of check
-
----
- src/bootstrap/install.rs | 8 ++------
- 1 file changed, 2 insertions(+), 6 deletions(-)
-
-diff --git a/src/bootstrap/install.rs b/src/bootstrap/install.rs
-index d9ee3bc..c5da9ce 100644
---- a/src/bootstrap/install.rs
-+++ b/src/bootstrap/install.rs
-@@ -73,12 +73,8 @@ fn install_sh(
-     let docdir_default = datadir_default.join("doc/rust");
-     let libdir_default = PathBuf::from("lib");
-     let mandir_default = datadir_default.join("man");
--    let prefix = builder.config.prefix.as_ref().map_or(prefix_default, |p| {
--        fs::create_dir_all(p)
--            .unwrap_or_else(|err| panic!("could not create {}: {}", p.display(), err));
--        fs::canonicalize(p)
--            .unwrap_or_else(|err| panic!("could not canonicalize {}: {}", p.display(), err))
--    });
-+
-+    let prefix = builder.config.prefix.as_ref().unwrap_or(&prefix_default);
-     let sysconfdir = builder.config.sysconfdir.as_ref().unwrap_or(&sysconfdir_default);
-     let datadir = builder.config.datadir.as_ref().unwrap_or(&datadir_default);
-     let docdir = builder.config.docdir.as_ref().unwrap_or(&docdir_default);
--- 
-2.28.0
-
diff --git a/dev-lang/rust/files/1.47.0-llvm-tensorflow-fix.patch b/dev-lang/rust/files/1.47.0-llvm-tensorflow-fix.patch
deleted file mode 100644
index 5b12c15ff40e..000000000000
--- a/dev-lang/rust/files/1.47.0-llvm-tensorflow-fix.patch
+++ /dev/null
@@ -1,55 +0,0 @@
-From 8dcb88f7705fb3927938dd9bd103efcabafcefb0 Mon Sep 17 00:00:00 2001
-From: Georgy Yakovlev <gyakovlev@gentoo.org>
-Date: Tue, 27 Oct 2020 18:20:56 -0700
-Subject: [PATCH] backport D88371, guard `find_library(tensorflow_c_api ...)`
-
-Differential Revision: https://reviews.llvm.org/D88371
-Signed-off-by: Georgy Yakovlev <gyakovlev@gentoo.org>
----
- src/llvm-project/llvm/CMakeLists.txt | 15 +++++++--------
- 1 file changed, 7 insertions(+), 8 deletions(-)
-
-diff --git a/src/llvm-project/llvm/CMakeLists.txt b/src/llvm-project/llvm/CMakeLists.txt
-index 1f137f0..4112def 100644
---- a/src/llvm-project/llvm/CMakeLists.txt
-+++ b/src/llvm-project/llvm/CMakeLists.txt
-@@ -832,6 +832,11 @@ configure_file(
-   ${LLVM_INCLUDE_DIR}/llvm/Config/Targets.def
-   )
- 
-+# They are not referenced. See set_output_directory().
-+set( CMAKE_RUNTIME_OUTPUT_DIRECTORY ${LLVM_BINARY_DIR}/bin )
-+set( CMAKE_LIBRARY_OUTPUT_DIRECTORY ${LLVM_BINARY_DIR}/lib${LLVM_LIBDIR_SUFFIX} )
-+set( CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${LLVM_BINARY_DIR}/lib${LLVM_LIBDIR_SUFFIX} )
-+
- # For up-to-date instructions for installing the Tensorflow dependency, refer to
- # the bot setup script: https://github.com/google/ml-compiler-opt/blob/master/buildbot/buildbot_init.sh
- # In this case, the latest C API library is available for download from
-@@ -840,9 +845,9 @@ configure_file(
- # LLVM_HAVE_TF_API, through llvm-config.h, so that a user of the LLVM library may
- # also leverage the dependency.
- set(TENSORFLOW_C_LIB_PATH "" CACHE PATH "Path to TensorFlow C library install")
--find_library(tensorflow_c_api tensorflow PATHS ${TENSORFLOW_C_LIB_PATH}/lib)
- 
--if (tensorflow_c_api)
-+if (TENSORFLOW_C_LIB_PATH)
-+  find_library(tensorflow_c_api tensorflow PATHS ${TENSORFLOW_C_LIB_PATH}/lib NO_DEFAULT_PATH REQUIRED)
-   set(LLVM_HAVE_TF_API "ON" CACHE BOOL "Full Tensorflow API available")
-   include_directories(${TENSORFLOW_C_LIB_PATH}/include)
- endif()
-@@ -877,12 +882,6 @@ add_custom_target(srpm
-   COMMAND rpmbuild -bs --define '_topdir ${LLVM_SRPM_DIR}' ${LLVM_SRPM_BINARY_SPECFILE})
- set_target_properties(srpm PROPERTIES FOLDER "Misc")
- 
--
--# They are not referenced. See set_output_directory().
--set( CMAKE_RUNTIME_OUTPUT_DIRECTORY ${LLVM_BINARY_DIR}/bin )
--set( CMAKE_LIBRARY_OUTPUT_DIRECTORY ${LLVM_BINARY_DIR}/lib${LLVM_LIBDIR_SUFFIX} )
--set( CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${LLVM_BINARY_DIR}/lib${LLVM_LIBDIR_SUFFIX} )
--
- if(APPLE AND DARWIN_LTO_LIBRARY)
-   set(CMAKE_EXE_LINKER_FLAGS
-     "${CMAKE_EXE_LINKER_FLAGS} -Wl,-lto_library -Wl,${DARWIN_LTO_LIBRARY}")
--- 
-2.26.2
-
diff --git a/dev-lang/rust/files/1.48.0-gentoo-musl-target-specs.patch b/dev-lang/rust/files/1.48.0-gentoo-musl-target-specs.patch
deleted file mode 100644
index 850257f932ea..000000000000
--- a/dev-lang/rust/files/1.48.0-gentoo-musl-target-specs.patch
+++ /dev/null
@@ -1,164 +0,0 @@
-From 671ef2d1c228aed031b4232b8bea96f17b825263 Mon Sep 17 00:00:00 2001
-From: Georgy Yakovlev <gyakovlev@gentoo.org>
-Date: Mon, 23 Nov 2020 14:52:04 -0800
-Subject: [PATCH] add gentoo musl target specs
-
----
- .../src/spec/aarch64_gentoo_linux_musl.rs             | 11 +++++++++++
- .../src/spec/armv7_gentoo_linux_musleabihf.rs         | 11 +++++++++++
- .../rustc_target/src/spec/i686_gentoo_linux_musl.rs   | 11 +++++++++++
- compiler/rustc_target/src/spec/mod.rs                 |  8 ++++++++
- .../src/spec/powerpc64_gentoo_linux_musl.rs           | 11 +++++++++++
- .../src/spec/powerpc64le_gentoo_linux_musl.rs         | 11 +++++++++++
- .../src/spec/powerpc_gentoo_linux_musl.rs             | 11 +++++++++++
- .../rustc_target/src/spec/x86_64_gentoo_linux_musl.rs | 11 +++++++++++
- 8 files changed, 85 insertions(+)
- create mode 100644 compiler/rustc_target/src/spec/aarch64_gentoo_linux_musl.rs
- create mode 100644 compiler/rustc_target/src/spec/armv7_gentoo_linux_musleabihf.rs
- create mode 100644 compiler/rustc_target/src/spec/i686_gentoo_linux_musl.rs
- create mode 100644 compiler/rustc_target/src/spec/powerpc64_gentoo_linux_musl.rs
- create mode 100644 compiler/rustc_target/src/spec/powerpc64le_gentoo_linux_musl.rs
- create mode 100644 compiler/rustc_target/src/spec/powerpc_gentoo_linux_musl.rs
- create mode 100644 compiler/rustc_target/src/spec/x86_64_gentoo_linux_musl.rs
-
-diff --git a/compiler/rustc_target/src/spec/aarch64_gentoo_linux_musl.rs b/compiler/rustc_target/src/spec/aarch64_gentoo_linux_musl.rs
-new file mode 100644
-index 0000000..420fe7c
---- /dev/null
-+++ b/compiler/rustc_target/src/spec/aarch64_gentoo_linux_musl.rs
-@@ -0,0 +1,11 @@
-+use crate::spec::TargetResult;
-+
-+pub fn target() -> TargetResult {
-+    let mut base = super::aarch64_unknown_linux_musl::target()?;
-+
-+    base.llvm_target = "aarch64-gentoo-linux-musl".to_string();
-+    base.target_vendor = "gentoo".to_string();
-+    base.options.crt_static_default = false;
-+
-+    Ok(base)
-+}
-diff --git a/compiler/rustc_target/src/spec/armv7_gentoo_linux_musleabihf.rs b/compiler/rustc_target/src/spec/armv7_gentoo_linux_musleabihf.rs
-new file mode 100644
-index 0000000..067e2d6
---- /dev/null
-+++ b/compiler/rustc_target/src/spec/armv7_gentoo_linux_musleabihf.rs
-@@ -0,0 +1,11 @@
-+use crate::spec::TargetResult;
-+
-+pub fn target() -> TargetResult {
-+    let mut base = super::armv7_unknown_linux_musleabihf::target()?;
-+
-+    base.llvm_target = "armv7-gentoo-linux-musleabihf".to_string();
-+    base.target_vendor = "gentoo".to_string();
-+    base.options.crt_static_default = false;
-+
-+    Ok(base)
-+}
-diff --git a/compiler/rustc_target/src/spec/i686_gentoo_linux_musl.rs b/compiler/rustc_target/src/spec/i686_gentoo_linux_musl.rs
-new file mode 100644
-index 0000000..1cd39cd
---- /dev/null
-+++ b/compiler/rustc_target/src/spec/i686_gentoo_linux_musl.rs
-@@ -0,0 +1,11 @@
-+use crate::spec::TargetResult;
-+
-+pub fn target() -> TargetResult {
-+    let mut base = super::i686_unknown_linux_musl::target()?;
-+
-+    base.llvm_target = "i686-gentoo-linux-musl".to_string();
-+    base.target_vendor = "gentoo".to_string();
-+    base.options.crt_static_default = false;
-+
-+    Ok(base)
-+}
-diff --git a/compiler/rustc_target/src/spec/mod.rs b/compiler/rustc_target/src/spec/mod.rs
-index f1e8330..d8c0ba0 100644
---- a/compiler/rustc_target/src/spec/mod.rs
-+++ b/compiler/rustc_target/src/spec/mod.rs
-@@ -490,6 +490,14 @@ macro_rules! supported_targets {
- }
- 
- supported_targets! {
-+    ("aarch64-gentoo-linux-musl", aarch64_gentoo_linux_musl),
-+    ("armv7-gentoo-linux-musleabihf", armv7_gentoo_linux_musleabihf),
-+    ("i686-gentoo-linux-musl", i686_gentoo_linux_musl),
-+    ("powerpc-gentoo-linux-musl", powerpc_gentoo_linux_musl),
-+    ("powerpc64-gentoo-linux-musl", powerpc64_gentoo_linux_musl),
-+    ("powerpc64le-gentoo-linux-musl", powerpc64le_gentoo_linux_musl),
-+    ("x86_64-gentoo-linux-musl", x86_64_gentoo_linux_musl),
-+
-     ("x86_64-unknown-linux-gnu", x86_64_unknown_linux_gnu),
-     ("x86_64-unknown-linux-gnux32", x86_64_unknown_linux_gnux32),
-     ("i686-unknown-linux-gnu", i686_unknown_linux_gnu),
-diff --git a/compiler/rustc_target/src/spec/powerpc64_gentoo_linux_musl.rs b/compiler/rustc_target/src/spec/powerpc64_gentoo_linux_musl.rs
-new file mode 100644
-index 0000000..e840bb2
---- /dev/null
-+++ b/compiler/rustc_target/src/spec/powerpc64_gentoo_linux_musl.rs
-@@ -0,0 +1,11 @@
-+use crate::spec::TargetResult;
-+
-+pub fn target() -> TargetResult {
-+    let mut base = super::powerpc64_unknown_linux_musl::target()?;
-+
-+    base.llvm_target = "powerpc64-gentoo-linux-musl".to_string();
-+    base.target_vendor = "gentoo".to_string();
-+    base.options.crt_static_default = false;
-+
-+    Ok(base)
-+}
-diff --git a/compiler/rustc_target/src/spec/powerpc64le_gentoo_linux_musl.rs b/compiler/rustc_target/src/spec/powerpc64le_gentoo_linux_musl.rs
-new file mode 100644
-index 0000000..1037d82
---- /dev/null
-+++ b/compiler/rustc_target/src/spec/powerpc64le_gentoo_linux_musl.rs
-@@ -0,0 +1,11 @@
-+use crate::spec::TargetResult;
-+
-+pub fn target() -> TargetResult {
-+    let mut base = super::powerpc64le_unknown_linux_musl::target()?;
-+
-+    base.llvm_target = "powerpc64le-gentoo-linux-musl".to_string();
-+    base.target_vendor = "gentoo".to_string();
-+    base.options.crt_static_default = false;
-+
-+    Ok(base)
-+}
-diff --git a/compiler/rustc_target/src/spec/powerpc_gentoo_linux_musl.rs b/compiler/rustc_target/src/spec/powerpc_gentoo_linux_musl.rs
-new file mode 100644
-index 0000000..a623ffe
---- /dev/null
-+++ b/compiler/rustc_target/src/spec/powerpc_gentoo_linux_musl.rs
-@@ -0,0 +1,11 @@
-+use crate::spec::TargetResult;
-+
-+pub fn target() -> TargetResult {
-+    let mut base = super::powerpc_unknown_linux_musl::target()?;
-+
-+    base.llvm_target = "powerpc-gentoo-linux-musl".to_string();
-+    base.target_vendor = "gentoo".to_string();
-+    base.options.crt_static_default = false;
-+
-+    Ok(base)
-+}
-diff --git a/compiler/rustc_target/src/spec/x86_64_gentoo_linux_musl.rs b/compiler/rustc_target/src/spec/x86_64_gentoo_linux_musl.rs
-new file mode 100644
-index 0000000..f330473
---- /dev/null
-+++ b/compiler/rustc_target/src/spec/x86_64_gentoo_linux_musl.rs
-@@ -0,0 +1,11 @@
-+use crate::spec::TargetResult;
-+
-+pub fn target() -> TargetResult {
-+    let mut base = super::x86_64_unknown_linux_musl::target()?;
-+
-+    base.llvm_target = "x86_64-gentoo-linux-musl".to_string();
-+    base.target_vendor = "gentoo".to_string();
-+    base.options.crt_static_default = false;
-+
-+    Ok(base)
-+}
--- 
-2.29.2
-
diff --git a/dev-lang/rust/files/1.49.0-llvm-ver-display.patch b/dev-lang/rust/files/1.49.0-llvm-ver-display.patch
deleted file mode 100644
index e2b6396b5eb8..000000000000
--- a/dev-lang/rust/files/1.49.0-llvm-ver-display.patch
+++ /dev/null
@@ -1,31 +0,0 @@
-From 64c1b0d614949f405d8b4498a3b2ea59d9ec230e Mon Sep 17 00:00:00 2001
-From: bjorn3 <bjorn3@users.noreply.github.com>
-Date: Wed, 13 Jan 2021 12:15:42 +0100
-Subject: [PATCH] Fix -Cpasses=list and llvm version print with -vV
-
----
- compiler/rustc_driver/src/lib.rs | 4 ++--
- 1 file changed, 2 insertions(+), 2 deletions(-)
-
-diff --git a/compiler/rustc_driver/src/lib.rs b/compiler/rustc_driver/src/lib.rs
-index f434673c39e10..c668c94bb08c4 100644
---- a/compiler/rustc_driver/src/lib.rs
-+++ b/compiler/rustc_driver/src/lib.rs
-@@ -808,7 +808,7 @@ pub fn version(binary: &str, matches: &getopts::Matches) {
-         println!("commit-date: {}", unw(util::commit_date_str()));
-         println!("host: {}", config::host_triple());
-         println!("release: {}", unw(util::release_str()));
--        if cfg!(llvm) {
-+        if cfg!(feature = "llvm") {
-             get_builtin_codegen_backend("llvm")().print_version();
-         }
-     }
-@@ -1096,7 +1096,7 @@ pub fn handle_options(args: &[String]) -> Option<getopts::Matches> {
-     }
- 
-     if cg_flags.iter().any(|x| *x == "passes=list") {
--        if cfg!(llvm) {
-+        if cfg!(feature = "llvm") {
-             get_builtin_codegen_backend("llvm")().print_passes();
-         }
-         return None;
diff --git a/dev-lang/rust/files/1.51.0-bootstrap-panic.patch b/dev-lang/rust/files/1.51.0-bootstrap-panic.patch
new file mode 100644
index 000000000000..529d5a1f402f
--- /dev/null
+++ b/dev-lang/rust/files/1.51.0-bootstrap-panic.patch
@@ -0,0 +1,43 @@
+From 31c93397bde772764cda3058e16f9cef61895090 Mon Sep 17 00:00:00 2001
+From: Joshua Nelson <jyn514@gmail.com>
+Date: Mon, 8 Feb 2021 22:51:21 -0500
+Subject: [PATCH] Use format string in bootstrap panic instead of a string
+ directly
+
+This fixes the following warning when compiling with nightly:
+
+```
+warning: panic message is not a string literal
+    --> src/bootstrap/builder.rs:1515:24
+     |
+1515 |                 panic!(out);
+     |                        ^^^
+     |
+     = note: `#[warn(non_fmt_panic)]` on by default
+     = note: this is no longer accepted in Rust 2021
+help: add a "{}" format string to Display the message
+     |
+1515 |                 panic!("{}", out);
+     |                        ^^^^^
+help: or use std::panic::panic_any instead
+     |
+1515 |                 std::panic::panic_any(out);
+     |                 ^^^^^^^^^^^^^^^^^^^^^^
+```
+---
+ src/bootstrap/builder.rs | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/bootstrap/builder.rs b/src/bootstrap/builder.rs
+index f1a160250dbe1..0f5fcb4af400d 100644
+--- a/src/bootstrap/builder.rs
++++ b/src/bootstrap/builder.rs
+@@ -1490,7 +1490,7 @@ impl<'a> Builder<'a> {
+                 for el in stack.iter().rev() {
+                     out += &format!("\t{:?}\n", el);
+                 }
+-                panic!(out);
++                panic!("{}", out);
+             }
+             if let Some(out) = self.cache.get(&step) {
+                 self.verbose(&format!("{}c {:?}", "  ".repeat(stack.len()), step));
diff --git a/dev-lang/rust/files/gentoo-musl-target-specs.patch b/dev-lang/rust/files/gentoo-musl-target-specs.patch
deleted file mode 100644
index 0661a26841b7..000000000000
--- a/dev-lang/rust/files/gentoo-musl-target-specs.patch
+++ /dev/null
@@ -1,168 +0,0 @@
-From 9fb44efd4a6270443ca2a06a098c83cf9820cc8b Mon Sep 17 00:00:00 2001
-From: Georgy Yakovlev <gyakovlev@gentoo.org>
-Date: Thu, 8 Oct 2020 22:38:54 -0700
-Subject: [PATCH] add gentoo musl target specs
-
-Directly based on patch by Samuel Holland <samuel@sholland.org>
-Found at: https://github.com/smaeul/portage-overlay/blob/master/dev-lang/rust/files/
-
-Signed-off-by: Georgy Yakovlev <gyakovlev@gentoo.org>
----
- src/librustc_target/spec/aarch64_gentoo_linux_musl.rs | 11 +++++++++++
- .../spec/armv7_gentoo_linux_musleabihf.rs             | 11 +++++++++++
- src/librustc_target/spec/i686_gentoo_linux_musl.rs    | 11 +++++++++++
- src/librustc_target/spec/mod.rs                       |  8 ++++++++
- .../spec/powerpc64_gentoo_linux_musl.rs               | 11 +++++++++++
- .../spec/powerpc64le_gentoo_linux_musl.rs             | 11 +++++++++++
- src/librustc_target/spec/powerpc_gentoo_linux_musl.rs | 11 +++++++++++
- src/librustc_target/spec/x86_64_gentoo_linux_musl.rs  | 11 +++++++++++
- 8 files changed, 85 insertions(+)
- create mode 100644 src/librustc_target/spec/aarch64_gentoo_linux_musl.rs
- create mode 100644 src/librustc_target/spec/armv7_gentoo_linux_musleabihf.rs
- create mode 100644 src/librustc_target/spec/i686_gentoo_linux_musl.rs
- create mode 100644 src/librustc_target/spec/powerpc64_gentoo_linux_musl.rs
- create mode 100644 src/librustc_target/spec/powerpc64le_gentoo_linux_musl.rs
- create mode 100644 src/librustc_target/spec/powerpc_gentoo_linux_musl.rs
- create mode 100644 src/librustc_target/spec/x86_64_gentoo_linux_musl.rs
-
-diff --git a/src/librustc_target/spec/aarch64_gentoo_linux_musl.rs b/src/librustc_target/spec/aarch64_gentoo_linux_musl.rs
-new file mode 100644
-index 0000000..420fe7c
---- /dev/null
-+++ b/src/librustc_target/spec/aarch64_gentoo_linux_musl.rs
-@@ -0,0 +1,11 @@
-+use crate::spec::TargetResult;
-+
-+pub fn target() -> TargetResult {
-+    let mut base = super::aarch64_unknown_linux_musl::target()?;
-+
-+    base.llvm_target = "aarch64-gentoo-linux-musl".to_string();
-+    base.target_vendor = "gentoo".to_string();
-+    base.options.crt_static_default = false;
-+
-+    Ok(base)
-+}
-diff --git a/src/librustc_target/spec/armv7_gentoo_linux_musleabihf.rs b/src/librustc_target/spec/armv7_gentoo_linux_musleabihf.rs
-new file mode 100644
-index 0000000..067e2d6
---- /dev/null
-+++ b/src/librustc_target/spec/armv7_gentoo_linux_musleabihf.rs
-@@ -0,0 +1,11 @@
-+use crate::spec::TargetResult;
-+
-+pub fn target() -> TargetResult {
-+    let mut base = super::armv7_unknown_linux_musleabihf::target()?;
-+
-+    base.llvm_target = "armv7-gentoo-linux-musleabihf".to_string();
-+    base.target_vendor = "gentoo".to_string();
-+    base.options.crt_static_default = false;
-+
-+    Ok(base)
-+}
-diff --git a/src/librustc_target/spec/i686_gentoo_linux_musl.rs b/src/librustc_target/spec/i686_gentoo_linux_musl.rs
-new file mode 100644
-index 0000000..1cd39cd
---- /dev/null
-+++ b/src/librustc_target/spec/i686_gentoo_linux_musl.rs
-@@ -0,0 +1,11 @@
-+use crate::spec::TargetResult;
-+
-+pub fn target() -> TargetResult {
-+    let mut base = super::i686_unknown_linux_musl::target()?;
-+
-+    base.llvm_target = "i686-gentoo-linux-musl".to_string();
-+    base.target_vendor = "gentoo".to_string();
-+    base.options.crt_static_default = false;
-+
-+    Ok(base)
-+}
-diff --git a/src/librustc_target/spec/mod.rs b/src/librustc_target/spec/mod.rs
-index fa29ff3..a685600 100644
---- a/src/librustc_target/spec/mod.rs
-+++ b/src/librustc_target/spec/mod.rs
-@@ -490,6 +490,14 @@ macro_rules! supported_targets {
- }
- 
- supported_targets! {
-+    ("aarch64-gentoo-linux-musl", aarch64_gentoo_linux_musl),
-+    ("armv7-gentoo-linux-musleabihf", armv7_gentoo_linux_musleabihf),
-+    ("i686-gentoo-linux-musl", i686_gentoo_linux_musl),
-+    ("powerpc-gentoo-linux-musl", powerpc_gentoo_linux_musl),
-+    ("powerpc64-gentoo-linux-musl", powerpc64_gentoo_linux_musl),
-+    ("powerpc64le-gentoo-linux-musl", powerpc64le_gentoo_linux_musl),
-+    ("x86_64-gentoo-linux-musl", x86_64_gentoo_linux_musl),
-+
-     ("x86_64-unknown-linux-gnu", x86_64_unknown_linux_gnu),
-     ("x86_64-unknown-linux-gnux32", x86_64_unknown_linux_gnux32),
-     ("i686-unknown-linux-gnu", i686_unknown_linux_gnu),
-diff --git a/src/librustc_target/spec/powerpc64_gentoo_linux_musl.rs b/src/librustc_target/spec/powerpc64_gentoo_linux_musl.rs
-new file mode 100644
-index 0000000..e840bb2
---- /dev/null
-+++ b/src/librustc_target/spec/powerpc64_gentoo_linux_musl.rs
-@@ -0,0 +1,11 @@
-+use crate::spec::TargetResult;
-+
-+pub fn target() -> TargetResult {
-+    let mut base = super::powerpc64_unknown_linux_musl::target()?;
-+
-+    base.llvm_target = "powerpc64-gentoo-linux-musl".to_string();
-+    base.target_vendor = "gentoo".to_string();
-+    base.options.crt_static_default = false;
-+
-+    Ok(base)
-+}
-diff --git a/src/librustc_target/spec/powerpc64le_gentoo_linux_musl.rs b/src/librustc_target/spec/powerpc64le_gentoo_linux_musl.rs
-new file mode 100644
-index 0000000..1037d82
---- /dev/null
-+++ b/src/librustc_target/spec/powerpc64le_gentoo_linux_musl.rs
-@@ -0,0 +1,11 @@
-+use crate::spec::TargetResult;
-+
-+pub fn target() -> TargetResult {
-+    let mut base = super::powerpc64le_unknown_linux_musl::target()?;
-+
-+    base.llvm_target = "powerpc64le-gentoo-linux-musl".to_string();
-+    base.target_vendor = "gentoo".to_string();
-+    base.options.crt_static_default = false;
-+
-+    Ok(base)
-+}
-diff --git a/src/librustc_target/spec/powerpc_gentoo_linux_musl.rs b/src/librustc_target/spec/powerpc_gentoo_linux_musl.rs
-new file mode 100644
-index 0000000..a623ffe
---- /dev/null
-+++ b/src/librustc_target/spec/powerpc_gentoo_linux_musl.rs
-@@ -0,0 +1,11 @@
-+use crate::spec::TargetResult;
-+
-+pub fn target() -> TargetResult {
-+    let mut base = super::powerpc_unknown_linux_musl::target()?;
-+
-+    base.llvm_target = "powerpc-gentoo-linux-musl".to_string();
-+    base.target_vendor = "gentoo".to_string();
-+    base.options.crt_static_default = false;
-+
-+    Ok(base)
-+}
-diff --git a/src/librustc_target/spec/x86_64_gentoo_linux_musl.rs b/src/librustc_target/spec/x86_64_gentoo_linux_musl.rs
-new file mode 100644
-index 0000000..f330473
---- /dev/null
-+++ b/src/librustc_target/spec/x86_64_gentoo_linux_musl.rs
-@@ -0,0 +1,11 @@
-+use crate::spec::TargetResult;
-+
-+pub fn target() -> TargetResult {
-+    let mut base = super::x86_64_unknown_linux_musl::target()?;
-+
-+    base.llvm_target = "x86_64-gentoo-linux-musl".to_string();
-+    base.target_vendor = "gentoo".to_string();
-+    base.options.crt_static_default = false;
-+
-+    Ok(base)
-+}
--- 
-2.28.0
-
diff --git a/dev-lang/rust/files/rustc-1.51.0-backport-pr81728.patch b/dev-lang/rust/files/rustc-1.51.0-backport-pr81728.patch
new file mode 100644
index 000000000000..20373f42d307
--- /dev/null
+++ b/dev-lang/rust/files/rustc-1.51.0-backport-pr81728.patch
@@ -0,0 +1,181 @@
+From 70f17ca715d3d7e2fd79cc909b95fd3a6357c13e Mon Sep 17 00:00:00 2001
+From: Yechan Bae <yechan@gatech.edu>
+Date: Wed, 3 Feb 2021 16:36:33 -0500
+Subject: [PATCH 1/2] Fixes #80335
+
+---
+ library/alloc/src/str.rs   | 42 ++++++++++++++++++++++----------------
+ library/alloc/tests/str.rs | 30 +++++++++++++++++++++++++++
+ 2 files changed, 54 insertions(+), 18 deletions(-)
+
+diff --git a/library/alloc/src/str.rs b/library/alloc/src/str.rs
+index 70e0c7dba5ea..a7584c6b6510 100644
+--- a/library/alloc/src/str.rs
++++ b/library/alloc/src/str.rs
+@@ -90,8 +90,8 @@ fn join(slice: &Self, sep: &str) -> String {
+     }
+ }
+ 
+-macro_rules! spezialize_for_lengths {
+-    ($separator:expr, $target:expr, $iter:expr; $($num:expr),*) => {
++macro_rules! specialize_for_lengths {
++    ($separator:expr, $target:expr, $iter:expr; $($num:expr),*) => {{
+         let mut target = $target;
+         let iter = $iter;
+         let sep_bytes = $separator;
+@@ -102,7 +102,8 @@ macro_rules! spezialize_for_lengths {
+                 $num => {
+                     for s in iter {
+                         copy_slice_and_advance!(target, sep_bytes);
+-                        copy_slice_and_advance!(target, s.borrow().as_ref());
++                        let content_bytes = s.borrow().as_ref();
++                        copy_slice_and_advance!(target, content_bytes);
+                     }
+                 },
+             )*
+@@ -110,11 +111,13 @@ macro_rules! spezialize_for_lengths {
+                 // arbitrary non-zero size fallback
+                 for s in iter {
+                     copy_slice_and_advance!(target, sep_bytes);
+-                    copy_slice_and_advance!(target, s.borrow().as_ref());
++                    let content_bytes = s.borrow().as_ref();
++                    copy_slice_and_advance!(target, content_bytes);
+                 }
+             }
+         }
+-    };
++        target
++    }}
+ }
+ 
+ macro_rules! copy_slice_and_advance {
+@@ -153,7 +156,7 @@ fn join_generic_copy<B, T, S>(slice: &[S], sep: &[T]) -> Vec<T>
+     // if the `len` calculation overflows, we'll panic
+     // we would have run out of memory anyway and the rest of the function requires
+     // the entire Vec pre-allocated for safety
+-    let len = sep_len
++    let reserved_len = sep_len
+         .checked_mul(iter.len())
+         .and_then(|n| {
+             slice.iter().map(|s| s.borrow().as_ref().len()).try_fold(n, usize::checked_add)
+@@ -161,22 +164,25 @@ fn join_generic_copy<B, T, S>(slice: &[S], sep: &[T]) -> Vec<T>
+         .expect("attempt to join into collection with len > usize::MAX");
+ 
+     // crucial for safety
+-    let mut result = Vec::with_capacity(len);
+-    assert!(result.capacity() >= len);
++    let mut result = Vec::with_capacity(reserved_len);
++    debug_assert!(result.capacity() >= reserved_len);
+ 
+     result.extend_from_slice(first.borrow().as_ref());
+ 
+     unsafe {
+-        {
+-            let pos = result.len();
+-            let target = result.get_unchecked_mut(pos..len);
+-
+-            // copy separator and slices over without bounds checks
+-            // generate loops with hardcoded offsets for small separators
+-            // massive improvements possible (~ x2)
+-            spezialize_for_lengths!(sep, target, iter; 0, 1, 2, 3, 4);
+-        }
+-        result.set_len(len);
++        let pos = result.len();
++        let target = result.get_unchecked_mut(pos..reserved_len);
++
++        // copy separator and slices over without bounds checks
++        // generate loops with hardcoded offsets for small separators
++        // massive improvements possible (~ x2)
++        let remain = specialize_for_lengths!(sep, target, iter; 0, 1, 2, 3, 4);
++
++        // issue #80335: A weird borrow implementation can return different
++        // slices for the length calculation and the actual copy, so
++        // `remain.len()` might be non-zero.
++        let result_len = reserved_len - remain.len();
++        result.set_len(result_len);
+     }
+     result
+ }
+diff --git a/library/alloc/tests/str.rs b/library/alloc/tests/str.rs
+index 604835e6cc4a..6df8d8c2f354 100644
+--- a/library/alloc/tests/str.rs
++++ b/library/alloc/tests/str.rs
+@@ -160,6 +160,36 @@ fn test_join_for_different_lengths_with_long_separator() {
+     test_join!("～～～～～a～～～～～bc", ["", "a", "bc"], "～～～～～");
+ }
+ 
++#[test]
++fn test_join_isue_80335() {
++    use core::{borrow::Borrow, cell::Cell};
++
++    struct WeirdBorrow {
++        state: Cell<bool>,
++    }
++
++    impl Default for WeirdBorrow {
++        fn default() -> Self {
++            WeirdBorrow { state: Cell::new(false) }
++        }
++    }
++
++    impl Borrow<str> for WeirdBorrow {
++        fn borrow(&self) -> &str {
++            let state = self.state.get();
++            if state {
++                "0"
++            } else {
++                self.state.set(true);
++                "123456"
++            }
++        }
++    }
++
++    let arr: [WeirdBorrow; 3] = Default::default();
++    test_join!("0-0-0", arr, "-");
++}
++
+ #[test]
+ #[cfg_attr(miri, ignore)] // Miri is too slow
+ fn test_unsafe_slice() {
+-- 
+2.31.1
+
+
+From 10020817d2e6756be1ff2ac3c182af97cf7fe904 Mon Sep 17 00:00:00 2001
+From: Yechan Bae <yechan@gatech.edu>
+Date: Sat, 20 Mar 2021 13:42:54 -0400
+Subject: [PATCH 2/2] Update the comment
+
+---
+ library/alloc/src/str.rs | 8 ++++----
+ 1 file changed, 4 insertions(+), 4 deletions(-)
+
+diff --git a/library/alloc/src/str.rs b/library/alloc/src/str.rs
+index a7584c6b6510..4d1e876457b8 100644
+--- a/library/alloc/src/str.rs
++++ b/library/alloc/src/str.rs
+@@ -163,7 +163,7 @@ fn join_generic_copy<B, T, S>(slice: &[S], sep: &[T]) -> Vec<T>
+         })
+         .expect("attempt to join into collection with len > usize::MAX");
+ 
+-    // crucial for safety
++    // prepare an uninitialized buffer
+     let mut result = Vec::with_capacity(reserved_len);
+     debug_assert!(result.capacity() >= reserved_len);
+ 
+@@ -178,9 +178,9 @@ fn join_generic_copy<B, T, S>(slice: &[S], sep: &[T]) -> Vec<T>
+         // massive improvements possible (~ x2)
+         let remain = specialize_for_lengths!(sep, target, iter; 0, 1, 2, 3, 4);
+ 
+-        // issue #80335: A weird borrow implementation can return different
+-        // slices for the length calculation and the actual copy, so
+-        // `remain.len()` might be non-zero.
++        // A weird borrow implementation may return different
++        // slices for the length calculation and the actual copy.
++        // Make sure we don't expose uninitialized bytes to the caller.
+         let result_len = reserved_len - remain.len();
+         result.set_len(result_len);
+     }
+-- 
+2.31.1
+
diff --git a/dev-lang/rust/files/rustc-1.51.0-backport-pr81741.patch b/dev-lang/rust/files/rustc-1.51.0-backport-pr81741.patch
new file mode 100644
index 000000000000..8ef22eea56fd
--- /dev/null
+++ b/dev-lang/rust/files/rustc-1.51.0-backport-pr81741.patch
@@ -0,0 +1,44 @@
+From 40d3f2d7ef5835317fe9df9ecc01f4c363def4fd Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Sebastian=20Dr=C3=B6ge?= <sebastian@centricular.com>
+Date: Thu, 4 Feb 2021 10:23:01 +0200
+Subject: [PATCH] Increment `self.index` before calling
+ `Iterator::self.a.__iterator_get_unchecked` in `Zip` `TrustedRandomAccess`
+ specialization
+
+Otherwise if `Iterator::self.a.__iterator_get_unchecked` panics the
+index would not have been incremented yet and another call to
+`Iterator::next` would read from the same index again, which is not
+allowed according to the API contract of `TrustedRandomAccess` for
+`!Clone`.
+
+Fixes https://github.com/rust-lang/rust/issues/81740
+
+(cherry picked from commit 86a4b27475aab52b998c15f5758540697cc9cff0)
+---
+ library/core/src/iter/adapters/zip.rs | 7 ++++---
+ 1 file changed, 4 insertions(+), 3 deletions(-)
+
+diff --git a/library/core/src/iter/adapters/zip.rs b/library/core/src/iter/adapters/zip.rs
+index 98b8dca96140..9f9835345200 100644
+--- a/library/core/src/iter/adapters/zip.rs
++++ b/library/core/src/iter/adapters/zip.rs
+@@ -198,12 +198,13 @@ fn next(&mut self) -> Option<(A::Item, B::Item)> {
+                 Some((self.a.__iterator_get_unchecked(i), self.b.__iterator_get_unchecked(i)))
+             }
+         } else if A::may_have_side_effect() && self.index < self.a.size() {
++            let i = self.index;
++            self.index += 1;
+             // match the base implementation's potential side effects
+-            // SAFETY: we just checked that `self.index` < `self.a.len()`
++            // SAFETY: we just checked that `i` < `self.a.len()`
+             unsafe {
+-                self.a.__iterator_get_unchecked(self.index);
++                self.a.__iterator_get_unchecked(i);
+             }
+-            self.index += 1;
+             None
+         } else {
+             None
+-- 
+2.31.1
+
diff --git a/dev-lang/rust/files/rustc-1.51.0-backport-pr82289.patch b/dev-lang/rust/files/rustc-1.51.0-backport-pr82289.patch
new file mode 100644
index 000000000000..5cf543319775
--- /dev/null
+++ b/dev-lang/rust/files/rustc-1.51.0-backport-pr82289.patch
@@ -0,0 +1,96 @@
+From 5222e2ba2d97cd716a379b4ae6bc62c5f7c2dd36 Mon Sep 17 00:00:00 2001
+From: Giacomo Stevanato <giaco.stevanato@gmail.com>
+Date: Fri, 19 Feb 2021 12:15:37 +0100
+Subject: [PATCH 1/3] Increment self.len in specialized ZipImpl to avoid
+ underflow in size_hint
+
+(cherry picked from commit 66a260617a88ed1ad55a46f03c5a90d5ad3004d3)
+---
+ library/core/src/iter/adapters/zip.rs | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/library/core/src/iter/adapters/zip.rs b/library/core/src/iter/adapters/zip.rs
+index 9f9835345200..f08bfac837fe 100644
+--- a/library/core/src/iter/adapters/zip.rs
++++ b/library/core/src/iter/adapters/zip.rs
+@@ -200,6 +200,7 @@ fn next(&mut self) -> Option<(A::Item, B::Item)> {
+         } else if A::may_have_side_effect() && self.index < self.a.size() {
+             let i = self.index;
+             self.index += 1;
++            self.len += 1;
+             // match the base implementation's potential side effects
+             // SAFETY: we just checked that `i` < `self.a.len()`
+             unsafe {
+-- 
+2.31.1
+
+
+From d39669fc8282830a374d19d204f7b4ee8eb1e381 Mon Sep 17 00:00:00 2001
+From: Giacomo Stevanato <giaco.stevanato@gmail.com>
+Date: Fri, 19 Feb 2021 12:16:12 +0100
+Subject: [PATCH 2/3] Add test for underflow in specialized Zip's size_hint
+
+(cherry picked from commit 8b9ac4d4155c74db5b317046033ab9c05a09e351)
+---
+ library/core/tests/iter/adapters/zip.rs | 20 ++++++++++++++++++++
+ 1 file changed, 20 insertions(+)
+
+diff --git a/library/core/tests/iter/adapters/zip.rs b/library/core/tests/iter/adapters/zip.rs
+index 1fce0951e365..a59771039295 100644
+--- a/library/core/tests/iter/adapters/zip.rs
++++ b/library/core/tests/iter/adapters/zip.rs
+@@ -245,3 +245,23 @@ fn test_double_ended_zip() {
+     assert_eq!(it.next_back(), Some((3, 3)));
+     assert_eq!(it.next(), None);
+ }
++
++#[test]
++fn test_issue_82282() {
++    fn overflowed_zip(arr: &[i32]) -> impl Iterator<Item = (i32, &())> {
++        static UNIT_EMPTY_ARR: [(); 0] = [];
++
++        let mapped = arr.into_iter().map(|i| *i);
++        let mut zipped = mapped.zip(UNIT_EMPTY_ARR.iter());
++        zipped.next();
++        zipped
++    }
++
++    let arr = [1, 2, 3];
++    let zip = overflowed_zip(&arr).zip(overflowed_zip(&arr));
++
++    assert_eq!(zip.size_hint(), (0, Some(0)));
++    for _ in zip {
++        panic!();
++    }
++}
+-- 
+2.31.1
+
+
+From 4b382167dd5ed5a6eac0cf314bfb86e3704b6e76 Mon Sep 17 00:00:00 2001
+From: Giacomo Stevanato <giaco.stevanato@gmail.com>
+Date: Fri, 19 Feb 2021 12:17:48 +0100
+Subject: [PATCH 3/3] Remove useless comparison since now self.index <=
+ self.len is an invariant
+
+(cherry picked from commit aeb4ea739efb70e0002a4a9c4c7b8027dd0620b3)
+---
+ library/core/src/iter/adapters/zip.rs | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/library/core/src/iter/adapters/zip.rs b/library/core/src/iter/adapters/zip.rs
+index f08bfac837fe..dcbcb1ce7200 100644
+--- a/library/core/src/iter/adapters/zip.rs
++++ b/library/core/src/iter/adapters/zip.rs
+@@ -261,7 +261,7 @@ fn next_back(&mut self) -> Option<(A::Item, B::Item)>
+             if sz_a != sz_b {
+                 let sz_a = self.a.size();
+                 if a_side_effect && sz_a > self.len {
+-                    for _ in 0..sz_a - cmp::max(self.len, self.index) {
++                    for _ in 0..sz_a - self.len {
+                         self.a.next_back();
+                     }
+                 }
+-- 
+2.31.1
+
diff --git a/dev-lang/rust/files/rustc-1.51.0-backport-pr82292.patch b/dev-lang/rust/files/rustc-1.51.0-backport-pr82292.patch
new file mode 100644
index 000000000000..4baf72a26190
--- /dev/null
+++ b/dev-lang/rust/files/rustc-1.51.0-backport-pr82292.patch
@@ -0,0 +1,120 @@
+From 0babb88efc4d36f3defafc3c3c0343793fa05d52 Mon Sep 17 00:00:00 2001
+From: Giacomo Stevanato <giaco.stevanato@gmail.com>
+Date: Wed, 3 Mar 2021 21:09:01 +0100
+Subject: [PATCH 1/2] Prevent Zip specialization from calling
+ __iterator_get_unchecked twice with the same index after calling next_back
+
+(cherry picked from commit 2371914a05f8f2763dffe6e2511d0870bcd6b461)
+---
+ library/core/src/iter/adapters/zip.rs | 13 +++++++++----
+ 1 file changed, 9 insertions(+), 4 deletions(-)
+
+diff --git a/library/core/src/iter/adapters/zip.rs b/library/core/src/iter/adapters/zip.rs
+index dcbcb1ce7200..7dac0c63ca2d 100644
+--- a/library/core/src/iter/adapters/zip.rs
++++ b/library/core/src/iter/adapters/zip.rs
+@@ -13,9 +13,10 @@
+ pub struct Zip<A, B> {
+     a: A,
+     b: B,
+-    // index and len are only used by the specialized version of zip
++    // index, len and a_len are only used by the specialized version of zip
+     index: usize,
+     len: usize,
++    a_len: usize,
+ }
+ impl<A: Iterator, B: Iterator> Zip<A, B> {
+     pub(in crate::iter) fn new(a: A, b: B) -> Zip<A, B> {
+@@ -110,6 +111,7 @@ impl<A, B> ZipImpl<A, B> for Zip<A, B>
+             b,
+             index: 0, // unused
+             len: 0,   // unused
++            a_len: 0, // unused
+         }
+     }
+ 
+@@ -184,8 +186,9 @@ impl<A, B> ZipImpl<A, B> for Zip<A, B>
+     B: TrustedRandomAccess + Iterator,
+ {
+     fn new(a: A, b: B) -> Self {
+-        let len = cmp::min(a.size(), b.size());
+-        Zip { a, b, index: 0, len }
++        let a_len = a.size();
++        let len = cmp::min(a_len, b.size());
++        Zip { a, b, index: 0, len, a_len }
+     }
+ 
+     #[inline]
+@@ -197,7 +200,7 @@ fn next(&mut self) -> Option<(A::Item, B::Item)> {
+             unsafe {
+                 Some((self.a.__iterator_get_unchecked(i), self.b.__iterator_get_unchecked(i)))
+             }
+-        } else if A::may_have_side_effect() && self.index < self.a.size() {
++        } else if A::may_have_side_effect() && self.index < self.a_len {
+             let i = self.index;
+             self.index += 1;
+             self.len += 1;
+@@ -264,6 +267,7 @@ fn next_back(&mut self) -> Option<(A::Item, B::Item)>
+                     for _ in 0..sz_a - self.len {
+                         self.a.next_back();
+                     }
++                    self.a_len = self.len;
+                 }
+                 let sz_b = self.b.size();
+                 if b_side_effect && sz_b > self.len {
+@@ -275,6 +279,7 @@ fn next_back(&mut self) -> Option<(A::Item, B::Item)>
+         }
+         if self.index < self.len {
+             self.len -= 1;
++            self.a_len -= 1;
+             let i = self.len;
+             // SAFETY: `i` is smaller than the previous value of `self.len`,
+             // which is also smaller than or equal to `self.a.len()` and `self.b.len()`
+-- 
+2.31.1
+
+
+From 19af66a6f3e2bbb4780bb9eae7eb53bd13e3dd0f Mon Sep 17 00:00:00 2001
+From: Giacomo Stevanato <giaco.stevanato@gmail.com>
+Date: Fri, 19 Feb 2021 15:25:09 +0100
+Subject: [PATCH 2/2] Add relevant test
+
+(cherry picked from commit c1bfb9a78db6d481be1d03355672712c766e20b0)
+---
+ library/core/tests/iter/adapters/zip.rs | 23 +++++++++++++++++++++++
+ 1 file changed, 23 insertions(+)
+
+diff --git a/library/core/tests/iter/adapters/zip.rs b/library/core/tests/iter/adapters/zip.rs
+index a59771039295..000c15f72c88 100644
+--- a/library/core/tests/iter/adapters/zip.rs
++++ b/library/core/tests/iter/adapters/zip.rs
+@@ -265,3 +265,26 @@ fn overflowed_zip(arr: &[i32]) -> impl Iterator<Item = (i32, &())> {
+         panic!();
+     }
+ }
++
++#[test]
++fn test_issue_82291() {
++    use std::cell::Cell;
++
++    let mut v1 = [()];
++    let v2 = [()];
++
++    let called = Cell::new(0);
++
++    let mut zip = v1
++        .iter_mut()
++        .map(|r| {
++            called.set(called.get() + 1);
++            r
++        })
++        .zip(&v2);
++
++    zip.next_back();
++    assert_eq!(called.get(), 1);
++    zip.next();
++    assert_eq!(called.get(), 1);
++}
+-- 
+2.31.1
+
diff --git a/dev-lang/rust/files/rustc-1.51.0-backport-pr83629.patch b/dev-lang/rust/files/rustc-1.51.0-backport-pr83629.patch
new file mode 100644
index 000000000000..7f68d95cc7f4
--- /dev/null
+++ b/dev-lang/rust/files/rustc-1.51.0-backport-pr83629.patch
@@ -0,0 +1,142 @@
+From 3834e7b7393bf1a0d7df02ccd1d2e896c1465769 Mon Sep 17 00:00:00 2001
+From: The8472 <git@infinite-source.de>
+Date: Mon, 29 Mar 2021 04:22:34 +0200
+Subject: [PATCH 1/2] add testcase for double-drop during Vec in-place
+ collection
+
+---
+ library/alloc/tests/vec.rs | 38 +++++++++++++++++++++++++++++++++++++-
+ 1 file changed, 37 insertions(+), 1 deletion(-)
+
+diff --git a/library/alloc/tests/vec.rs b/library/alloc/tests/vec.rs
+index 5c7ff67bc621..4cdb7eefcdf1 100644
+--- a/library/alloc/tests/vec.rs
++++ b/library/alloc/tests/vec.rs
+@@ -954,7 +954,7 @@ fn test_from_iter_specialization_head_tail_drop() {
+ }
+ 
+ #[test]
+-fn test_from_iter_specialization_panic_drop() {
++fn test_from_iter_specialization_panic_during_iteration_drops() {
+     let drop_count: Vec<_> = (0..=2).map(|_| Rc::new(())).collect();
+     let src: Vec<_> = drop_count.iter().cloned().collect();
+     let iter = src.into_iter();
+@@ -977,6 +977,42 @@ fn test_from_iter_specialization_panic_drop() {
+     );
+ }
+ 
++#[test]
++fn test_from_iter_specialization_panic_during_drop_leaks() {
++    static mut DROP_COUNTER: usize = 0;
++
++    #[derive(Debug)]
++    enum Droppable {
++        DroppedTwice(Box<i32>),
++        PanicOnDrop,
++    }
++
++    impl Drop for Droppable {
++        fn drop(&mut self) {
++            match self {
++                Droppable::DroppedTwice(_) => {
++                    unsafe {
++                        DROP_COUNTER += 1;
++                    }
++                    println!("Dropping!")
++                }
++                Droppable::PanicOnDrop => {
++                    if !std::thread::panicking() {
++                        panic!();
++                    }
++                }
++            }
++        }
++    }
++
++    let _ = std::panic::catch_unwind(AssertUnwindSafe(|| {
++        let v = vec![Droppable::DroppedTwice(Box::new(123)), Droppable::PanicOnDrop];
++        let _ = v.into_iter().take(0).collect::<Vec<_>>();
++    }));
++
++    assert_eq!(unsafe { DROP_COUNTER }, 1);
++}
++
+ #[test]
+ fn test_cow_from() {
+     let borrowed: &[_] = &["borrowed", "(slice)"];
+-- 
+2.31.1
+
+
+From 8e2706343e1ce1c5a2d3a2ceaaaa010aaeb21d93 Mon Sep 17 00:00:00 2001
+From: The8472 <git@infinite-source.de>
+Date: Mon, 29 Mar 2021 04:22:48 +0200
+Subject: [PATCH 2/2] fix double-drop in in-place collect specialization
+
+---
+ library/alloc/src/vec/into_iter.rs          | 27 ++++++++++++++-------
+ library/alloc/src/vec/source_iter_marker.rs |  4 +--
+ 2 files changed, 20 insertions(+), 11 deletions(-)
+
+diff --git a/library/alloc/src/vec/into_iter.rs b/library/alloc/src/vec/into_iter.rs
+index f131d06bb18f..74adced53f6d 100644
+--- a/library/alloc/src/vec/into_iter.rs
++++ b/library/alloc/src/vec/into_iter.rs
+@@ -85,20 +85,29 @@ fn as_raw_mut_slice(&mut self) -> *mut [T] {
+         ptr::slice_from_raw_parts_mut(self.ptr as *mut T, self.len())
+     }
+ 
+-    pub(super) fn drop_remaining(&mut self) {
+-        unsafe {
+-            ptr::drop_in_place(self.as_mut_slice());
+-        }
+-        self.ptr = self.end;
+-    }
++    /// Drops remaining elements and relinquishes the backing allocation.
++    ///
++    /// This is roughly equivalent to the following, but more efficient
++    ///
++    /// ```
++    /// # let mut into_iter = Vec::<u8>::with_capacity(10).into_iter();
++    /// (&mut into_iter).for_each(core::mem::drop);
++    /// unsafe { core::ptr::write(&mut into_iter, Vec::new().into_iter()); }
++    /// ```
++    pub(super) fn forget_allocation_drop_remaining(&mut self) {
++        let remaining = self.as_raw_mut_slice();
+ 
+-    /// Relinquishes the backing allocation, equivalent to
+-    /// `ptr::write(&mut self, Vec::new().into_iter())`
+-    pub(super) fn forget_allocation(&mut self) {
++        // overwrite the individual fields instead of creating a new
++        // struct and then overwriting &mut self.
++        // this creates less assembly
+         self.cap = 0;
+         self.buf = unsafe { NonNull::new_unchecked(RawVec::NEW.ptr()) };
+         self.ptr = self.buf.as_ptr();
+         self.end = self.buf.as_ptr();
++
++        unsafe {
++            ptr::drop_in_place(remaining);
++        }
+     }
+ }
+ 
+diff --git a/library/alloc/src/vec/source_iter_marker.rs b/library/alloc/src/vec/source_iter_marker.rs
+index 8c0e95559fa1..9301f7a5184e 100644
+--- a/library/alloc/src/vec/source_iter_marker.rs
++++ b/library/alloc/src/vec/source_iter_marker.rs
+@@ -78,9 +78,9 @@ impl<T, I> SpecFromIter<T, I> for Vec<T>
+         }
+ 
+         // drop any remaining values at the tail of the source
+-        src.drop_remaining();
+         // but prevent drop of the allocation itself once IntoIter goes out of scope
+-        src.forget_allocation();
++        // if the drop panics then we also leak any elements collected into dst_buf
++        src.forget_allocation_drop_remaining();
+ 
+         let vec = unsafe {
+             let len = dst.offset_from(dst_buf) as usize;
+-- 
+2.31.1
+