diff --git a/sdk_container/src/third_party/coreos-overlay/virtual/rust/rust-1.16.0.ebuild b/sdk_container/src/third_party/coreos-overlay/virtual/rust/rust-1.16.0.ebuild
deleted file mode 100644
index 4c56dd441f..0000000000
--- a/sdk_container/src/third_party/coreos-overlay/virtual/rust/rust-1.16.0.ebuild
+++ /dev/null
@@ -1,15 +0,0 @@
-# Copyright 1999-2017 Gentoo Foundation
-# Distributed under the terms of the GNU General Public License v2
-
-EAPI="6"
-
-DESCRIPTION="Virtual for Rust language compiler"
-HOMEPAGE=""
-SRC_URI=""
-
-LICENSE=""
-SLOT="0"
-KEYWORDS="~amd64 ~x86"
-
-DEPEND=""
-RDEPEND="|| ( =dev-lang/rust-${PV}* =dev-lang/rust-bin-${PV}* )"
diff --git a/sdk_container/src/third_party/coreos-overlay/virtual/rust/rust-1.19.0.ebuild b/sdk_container/src/third_party/coreos-overlay/virtual/rust/rust-1.19.0.ebuild
deleted file mode 100644
index 4c56dd441f..0000000000
--- a/sdk_container/src/third_party/coreos-overlay/virtual/rust/rust-1.19.0.ebuild
+++ /dev/null
@@ -1,15 +0,0 @@
-# Copyright 1999-2017 Gentoo Foundation
-# Distributed under the terms of the GNU General Public License v2
-
-EAPI="6"
-
-DESCRIPTION="Virtual for Rust language compiler"
-HOMEPAGE=""
-SRC_URI=""
-
-LICENSE=""
-SLOT="0"
-KEYWORDS="~amd64 ~x86"
-
-DEPEND=""
-RDEPEND="|| ( =dev-lang/rust-${PV}* =dev-lang/rust-bin-${PV}* )"
diff --git a/sdk_container/src/third_party/coreos-overlay/virtual/rust/rust-1.15.1.ebuild b/sdk_container/src/third_party/coreos-overlay/virtual/rust/rust-1.21.0.ebuild
similarity index 100%
rename from sdk_container/src/third_party/coreos-overlay/virtual/rust/rust-1.15.1.ebuild
rename to sdk_container/src/third_party/coreos-overlay/virtual/rust/rust-1.21.0.ebuild