diff --git a/sdk_container/src/third_party/coreos-overlay/dev-lang/rust/files/1.46.0-don-t-create-prefix-at-time-of-check.patch b/sdk_container/src/third_party/coreos-overlay/dev-lang/rust/files/1.46.0-don-t-create-prefix-at-time-of-check.patch
deleted file mode 100644
index 9064a52ac2..0000000000
--- a/sdk_container/src/third_party/coreos-overlay/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/sdk_container/src/third_party/coreos-overlay/dev-lang/rust/rust-1.50.0.ebuild b/sdk_container/src/third_party/coreos-overlay/dev-lang/rust/rust-1.50.0.ebuild
index 8e08dc8503..efc822b63f 100644
--- a/sdk_container/src/third_party/coreos-overlay/dev-lang/rust/rust-1.50.0.ebuild
+++ b/sdk_container/src/third_party/coreos-overlay/dev-lang/rust/rust-1.50.0.ebuild
@@ -101,6 +101,7 @@ REQUIRED_USE="|| ( ${ALL_LLVM_TARGETS[*]} )
 
 QA_FLAGS_IGNORED="
 	usr/bin/.*-${PV}
+	usr/libexec/.*-${PV}
 	usr/lib.*/lib.*.so
 	usr/lib/rustlib/.*/codegen-backends/librustc_codegen_llvm-llvm.so
 	usr/lib/rustlib/.*/lib/lib.*.so
@@ -117,7 +118,6 @@ RESTRICT="test"
 
 PATCHES=(
 	"${FILESDIR}"/1.47.0-libressl.patch
-	"${FILESDIR}"/1.46.0-don-t-create-prefix-at-time-of-check.patch
 	"${FILESDIR}"/1.47.0-ignore-broken-and-non-applicable-tests.patch
 	"${FILESDIR}"/1.47.0-llvm-tensorflow-fix.patch
 	"${FILESDIR}"/1.49.0-gentoo-musl-target-specs.patch
@@ -439,7 +439,7 @@ src_install() {
 	# bug #689562, #689160
 	rm "${D}/etc/bash_completion.d/cargo" || die
 	rmdir "${D}"/etc{/bash_completion.d,} || die
-	dobashcomp build/tmp/dist/cargo-image/etc/bash_completion.d/cargo
+	newbashcomp src/tools/cargo/src/etc/cargo.bashcomp.sh cargo
 
 	mv "${ED}/usr/bin/rustc" "${ED}/usr/bin/rustc-${PV}" || die
 	mv "${ED}/usr/bin/rustdoc" "${ED}/usr/bin/rustdoc-${PV}" || die