diff --git a/src/ci/docker/host-x86_64/dist-aarch64-linux/aarch64-linux-gnu.config b/src/ci/docker/host-x86_64/dist-aarch64-linux/aarch64-linux-gnu.config
index 3d30ee49022d8..416fa50374fe4 100644
--- a/src/ci/docker/host-x86_64/dist-aarch64-linux/aarch64-linux-gnu.config
+++ b/src/ci/docker/host-x86_64/dist-aarch64-linux/aarch64-linux-gnu.config
@@ -37,7 +37,8 @@ CT_STRIP_HOST_TOOLCHAIN_EXECUTABLES=y
 # CT_FORCE_DOWNLOAD is not set
 CT_CONNECT_TIMEOUT=10
 # CT_ONLY_DOWNLOAD is not set
-# CT_USE_MIRROR is not set
+CT_USE_MIRROR=y
+CT_MIRROR_BASE_URL="https://ci-mirrors.rust-lang.org/rustc"
 
 #
 # Extracting
diff --git a/src/ci/docker/host-x86_64/dist-powerpc-linux/powerpc-linux-gnu.config b/src/ci/docker/host-x86_64/dist-powerpc-linux/powerpc-linux-gnu.config
index b358dce3cdfe8..814e1fa16f87d 100644
--- a/src/ci/docker/host-x86_64/dist-powerpc-linux/powerpc-linux-gnu.config
+++ b/src/ci/docker/host-x86_64/dist-powerpc-linux/powerpc-linux-gnu.config
@@ -37,7 +37,8 @@ CT_STRIP_HOST_TOOLCHAIN_EXECUTABLES=y
 # CT_FORCE_DOWNLOAD is not set
 CT_CONNECT_TIMEOUT=10
 # CT_ONLY_DOWNLOAD is not set
-# CT_USE_MIRROR is not set
+CT_USE_MIRROR=y
+CT_MIRROR_BASE_URL="https://ci-mirrors.rust-lang.org/rustc"
 
 #
 # Extracting
diff --git a/src/ci/docker/host-x86_64/dist-powerpc64-linux/powerpc64-linux-gnu.config b/src/ci/docker/host-x86_64/dist-powerpc64-linux/powerpc64-linux-gnu.config
index aa13119d50c19..83439bb81e23d 100644
--- a/src/ci/docker/host-x86_64/dist-powerpc64-linux/powerpc64-linux-gnu.config
+++ b/src/ci/docker/host-x86_64/dist-powerpc64-linux/powerpc64-linux-gnu.config
@@ -37,7 +37,8 @@ CT_STRIP_HOST_TOOLCHAIN_EXECUTABLES=y
 # CT_FORCE_DOWNLOAD is not set
 CT_CONNECT_TIMEOUT=10
 # CT_ONLY_DOWNLOAD is not set
-# CT_USE_MIRROR is not set
+CT_USE_MIRROR=y
+CT_MIRROR_BASE_URL="https://ci-mirrors.rust-lang.org/rustc"
 
 #
 # Extracting
diff --git a/src/ci/docker/host-x86_64/dist-s390x-linux/s390x-linux-gnu.config b/src/ci/docker/host-x86_64/dist-s390x-linux/s390x-linux-gnu.config
index c9c141afad131..2e995b2c0bdfd 100644
--- a/src/ci/docker/host-x86_64/dist-s390x-linux/s390x-linux-gnu.config
+++ b/src/ci/docker/host-x86_64/dist-s390x-linux/s390x-linux-gnu.config
@@ -37,7 +37,8 @@ CT_STRIP_HOST_TOOLCHAIN_EXECUTABLES=y
 # CT_FORCE_DOWNLOAD is not set
 CT_CONNECT_TIMEOUT=10
 # CT_ONLY_DOWNLOAD is not set
-# CT_USE_MIRROR is not set
+CT_USE_MIRROR=y
+CT_MIRROR_BASE_URL="https://ci-mirrors.rust-lang.org/rustc"
 
 #
 # Extracting