diff --git a/library/compiler-builtins/ci/docker/aarch64-unknown-linux-gnu/Dockerfile b/library/compiler-builtins/ci/docker/aarch64-unknown-linux-gnu/Dockerfile
index 5de76efc375f..1aef14a962d6 100644
--- a/library/compiler-builtins/ci/docker/aarch64-unknown-linux-gnu/Dockerfile
+++ b/library/compiler-builtins/ci/docker/aarch64-unknown-linux-gnu/Dockerfile
@@ -1,4 +1,4 @@
-ARG IMAGE=ubuntu:18.04
+ARG IMAGE=ubuntu:24.04
 FROM $IMAGE
 RUN apt-get update && \
     apt-get install -y --no-install-recommends \
diff --git a/library/compiler-builtins/ci/docker/arm-unknown-linux-gnueabi/Dockerfile b/library/compiler-builtins/ci/docker/arm-unknown-linux-gnueabi/Dockerfile
index dc95da0f3c5e..fc9803777f82 100644
--- a/library/compiler-builtins/ci/docker/arm-unknown-linux-gnueabi/Dockerfile
+++ b/library/compiler-builtins/ci/docker/arm-unknown-linux-gnueabi/Dockerfile
@@ -1,4 +1,4 @@
-ARG IMAGE=ubuntu:18.04
+ARG IMAGE=ubuntu:24.04
 FROM $IMAGE
 RUN apt-get update && \
     apt-get install -y --no-install-recommends \
diff --git a/library/compiler-builtins/ci/docker/arm-unknown-linux-gnueabihf/Dockerfile b/library/compiler-builtins/ci/docker/arm-unknown-linux-gnueabihf/Dockerfile
index 55e5e3d5754c..a127f67cb731 100644
--- a/library/compiler-builtins/ci/docker/arm-unknown-linux-gnueabihf/Dockerfile
+++ b/library/compiler-builtins/ci/docker/arm-unknown-linux-gnueabihf/Dockerfile
@@ -1,4 +1,4 @@
-ARG IMAGE=ubuntu:18.04
+ARG IMAGE=ubuntu:24.04
 FROM $IMAGE
 RUN apt-get update && \
     apt-get install -y --no-install-recommends \
diff --git a/library/compiler-builtins/ci/docker/armv7-unknown-linux-gnueabihf/Dockerfile b/library/compiler-builtins/ci/docker/armv7-unknown-linux-gnueabihf/Dockerfile
index fd2ad18d1a35..67a3e51a9645 100644
--- a/library/compiler-builtins/ci/docker/armv7-unknown-linux-gnueabihf/Dockerfile
+++ b/library/compiler-builtins/ci/docker/armv7-unknown-linux-gnueabihf/Dockerfile
@@ -1,4 +1,4 @@
-ARG IMAGE=ubuntu:18.04
+ARG IMAGE=ubuntu:24.04
 FROM $IMAGE
 RUN apt-get update && \
     apt-get install -y --no-install-recommends \
diff --git a/library/compiler-builtins/ci/docker/i586-unknown-linux-gnu/Dockerfile b/library/compiler-builtins/ci/docker/i586-unknown-linux-gnu/Dockerfile
index f161ec76725a..15285d9bb060 100644
--- a/library/compiler-builtins/ci/docker/i586-unknown-linux-gnu/Dockerfile
+++ b/library/compiler-builtins/ci/docker/i586-unknown-linux-gnu/Dockerfile
@@ -1,4 +1,4 @@
-ARG IMAGE=ubuntu:18.04
+ARG IMAGE=ubuntu:24.04
 FROM $IMAGE
 RUN apt-get update && \
     apt-get install -y --no-install-recommends \
diff --git a/library/compiler-builtins/ci/docker/i686-unknown-linux-gnu/Dockerfile b/library/compiler-builtins/ci/docker/i686-unknown-linux-gnu/Dockerfile
index f161ec76725a..15285d9bb060 100644
--- a/library/compiler-builtins/ci/docker/i686-unknown-linux-gnu/Dockerfile
+++ b/library/compiler-builtins/ci/docker/i686-unknown-linux-gnu/Dockerfile
@@ -1,4 +1,4 @@
-ARG IMAGE=ubuntu:18.04
+ARG IMAGE=ubuntu:24.04
 FROM $IMAGE
 RUN apt-get update && \
     apt-get install -y --no-install-recommends \
diff --git a/library/compiler-builtins/ci/docker/mips-unknown-linux-gnu/Dockerfile b/library/compiler-builtins/ci/docker/mips-unknown-linux-gnu/Dockerfile
index 042dd4219de7..a47dd9f19313 100644
--- a/library/compiler-builtins/ci/docker/mips-unknown-linux-gnu/Dockerfile
+++ b/library/compiler-builtins/ci/docker/mips-unknown-linux-gnu/Dockerfile
@@ -1,4 +1,4 @@
-ARG IMAGE=ubuntu:18.04
+ARG IMAGE=ubuntu:24.04
 FROM $IMAGE
 
 RUN apt-get update && \
diff --git a/library/compiler-builtins/ci/docker/mips64-unknown-linux-gnuabi64/Dockerfile b/library/compiler-builtins/ci/docker/mips64-unknown-linux-gnuabi64/Dockerfile
index 45b3089c9ed3..688aa1ab231a 100644
--- a/library/compiler-builtins/ci/docker/mips64-unknown-linux-gnuabi64/Dockerfile
+++ b/library/compiler-builtins/ci/docker/mips64-unknown-linux-gnuabi64/Dockerfile
@@ -1,4 +1,4 @@
-ARG IMAGE=ubuntu:18.04
+ARG IMAGE=ubuntu:24.04
 FROM $IMAGE
 RUN apt-get update && \
     apt-get install -y --no-install-recommends \
diff --git a/library/compiler-builtins/ci/docker/mips64el-unknown-linux-gnuabi64/Dockerfile b/library/compiler-builtins/ci/docker/mips64el-unknown-linux-gnuabi64/Dockerfile
index bda6be1d6744..27d032a1441c 100644
--- a/library/compiler-builtins/ci/docker/mips64el-unknown-linux-gnuabi64/Dockerfile
+++ b/library/compiler-builtins/ci/docker/mips64el-unknown-linux-gnuabi64/Dockerfile
@@ -1,4 +1,4 @@
-ARG IMAGE=ubuntu:18.04
+ARG IMAGE=ubuntu:24.04
 FROM $IMAGE
 RUN apt-get update && \
     apt-get install -y --no-install-recommends \
diff --git a/library/compiler-builtins/ci/docker/mipsel-unknown-linux-gnu/Dockerfile b/library/compiler-builtins/ci/docker/mipsel-unknown-linux-gnu/Dockerfile
index 702a26ec1a5f..4d18a6edbc9d 100644
--- a/library/compiler-builtins/ci/docker/mipsel-unknown-linux-gnu/Dockerfile
+++ b/library/compiler-builtins/ci/docker/mipsel-unknown-linux-gnu/Dockerfile
@@ -1,4 +1,4 @@
-ARG IMAGE=ubuntu:18.04
+ARG IMAGE=ubuntu:24.04
 FROM $IMAGE
 
 RUN apt-get update && \
diff --git a/library/compiler-builtins/ci/docker/powerpc-unknown-linux-gnu/Dockerfile b/library/compiler-builtins/ci/docker/powerpc-unknown-linux-gnu/Dockerfile
index 6bae7cb3b65b..5225b833c0c0 100644
--- a/library/compiler-builtins/ci/docker/powerpc-unknown-linux-gnu/Dockerfile
+++ b/library/compiler-builtins/ci/docker/powerpc-unknown-linux-gnu/Dockerfile
@@ -1,4 +1,4 @@
-ARG IMAGE=ubuntu:18.04
+ARG IMAGE=ubuntu:24.04
 FROM $IMAGE
 
 RUN apt-get update && \
diff --git a/library/compiler-builtins/ci/docker/powerpc64-unknown-linux-gnu/Dockerfile b/library/compiler-builtins/ci/docker/powerpc64-unknown-linux-gnu/Dockerfile
index 2c315e509e32..cbd78eac4217 100644
--- a/library/compiler-builtins/ci/docker/powerpc64-unknown-linux-gnu/Dockerfile
+++ b/library/compiler-builtins/ci/docker/powerpc64-unknown-linux-gnu/Dockerfile
@@ -1,4 +1,4 @@
-ARG IMAGE=ubuntu:18.04
+ARG IMAGE=ubuntu:24.04
 FROM $IMAGE
 
 RUN apt-get update && \
diff --git a/library/compiler-builtins/ci/docker/powerpc64le-unknown-linux-gnu/Dockerfile b/library/compiler-builtins/ci/docker/powerpc64le-unknown-linux-gnu/Dockerfile
index da8f9db604bb..bad064297c39 100644
--- a/library/compiler-builtins/ci/docker/powerpc64le-unknown-linux-gnu/Dockerfile
+++ b/library/compiler-builtins/ci/docker/powerpc64le-unknown-linux-gnu/Dockerfile
@@ -1,4 +1,4 @@
-ARG IMAGE=ubuntu:18.04
+ARG IMAGE=ubuntu:24.04
 FROM $IMAGE
 
 RUN apt-get update && \
diff --git a/library/compiler-builtins/ci/docker/thumbv6m-none-eabi/Dockerfile b/library/compiler-builtins/ci/docker/thumbv6m-none-eabi/Dockerfile
index d7256a9c5330..f966b2b9f2a5 100644
--- a/library/compiler-builtins/ci/docker/thumbv6m-none-eabi/Dockerfile
+++ b/library/compiler-builtins/ci/docker/thumbv6m-none-eabi/Dockerfile
@@ -1,4 +1,4 @@
-ARG IMAGE=ubuntu:18.04
+ARG IMAGE=ubuntu:24.04
 FROM $IMAGE
 RUN apt-get update && \
     apt-get install -y --no-install-recommends \
diff --git a/library/compiler-builtins/ci/docker/thumbv7em-none-eabi/Dockerfile b/library/compiler-builtins/ci/docker/thumbv7em-none-eabi/Dockerfile
index d7256a9c5330..f966b2b9f2a5 100644
--- a/library/compiler-builtins/ci/docker/thumbv7em-none-eabi/Dockerfile
+++ b/library/compiler-builtins/ci/docker/thumbv7em-none-eabi/Dockerfile
@@ -1,4 +1,4 @@
-ARG IMAGE=ubuntu:18.04
+ARG IMAGE=ubuntu:24.04
 FROM $IMAGE
 RUN apt-get update && \
     apt-get install -y --no-install-recommends \
diff --git a/library/compiler-builtins/ci/docker/thumbv7em-none-eabihf/Dockerfile b/library/compiler-builtins/ci/docker/thumbv7em-none-eabihf/Dockerfile
index d7256a9c5330..f966b2b9f2a5 100644
--- a/library/compiler-builtins/ci/docker/thumbv7em-none-eabihf/Dockerfile
+++ b/library/compiler-builtins/ci/docker/thumbv7em-none-eabihf/Dockerfile
@@ -1,4 +1,4 @@
-ARG IMAGE=ubuntu:18.04
+ARG IMAGE=ubuntu:24.04
 FROM $IMAGE
 RUN apt-get update && \
     apt-get install -y --no-install-recommends \
diff --git a/library/compiler-builtins/ci/docker/thumbv7m-none-eabi/Dockerfile b/library/compiler-builtins/ci/docker/thumbv7m-none-eabi/Dockerfile
index d7256a9c5330..f966b2b9f2a5 100644
--- a/library/compiler-builtins/ci/docker/thumbv7m-none-eabi/Dockerfile
+++ b/library/compiler-builtins/ci/docker/thumbv7m-none-eabi/Dockerfile
@@ -1,4 +1,4 @@
-ARG IMAGE=ubuntu:18.04
+ARG IMAGE=ubuntu:24.04
 FROM $IMAGE
 RUN apt-get update && \
     apt-get install -y --no-install-recommends \
diff --git a/library/compiler-builtins/ci/docker/x86_64-unknown-linux-gnu/Dockerfile b/library/compiler-builtins/ci/docker/x86_64-unknown-linux-gnu/Dockerfile
index d495d5044adf..670c2439764d 100644
--- a/library/compiler-builtins/ci/docker/x86_64-unknown-linux-gnu/Dockerfile
+++ b/library/compiler-builtins/ci/docker/x86_64-unknown-linux-gnu/Dockerfile
@@ -1,4 +1,4 @@
-ARG IMAGE=ubuntu:18.04
+ARG IMAGE=ubuntu:24.04
 FROM $IMAGE
 RUN apt-get update && \
     apt-get install -y --no-install-recommends \
diff --git a/library/compiler-builtins/ci/run-docker.sh b/library/compiler-builtins/ci/run-docker.sh
index 14b1a32d712d..aff3564732fc 100755
--- a/library/compiler-builtins/ci/run-docker.sh
+++ b/library/compiler-builtins/ci/run-docker.sh
@@ -76,7 +76,7 @@ if [ "${1:-}" = "--help" ] || [ "$#" -gt 1 ]; then
     usage: ./ci/run-docker.sh [target]
 
     you can also set DOCKER_BASE_IMAGE to use something other than the default
-    ubuntu:18.04 (or rustlang/rust:nightly).
+    ubuntu:24.04 (or rustlang/rust:nightly).
   "
   exit
 fi
diff --git a/library/compiler-builtins/testcrate/build.rs b/library/compiler-builtins/testcrate/build.rs
index cae83e1fc093..f18bd90df16a 100644
--- a/library/compiler-builtins/testcrate/build.rs
+++ b/library/compiler-builtins/testcrate/build.rs
@@ -24,9 +24,10 @@ fn main() {
         // FIXME(llvm): There is an ABI incompatibility between GCC and Clang on 32-bit x86.
         // See <https://github.com/llvm/llvm-project/issues/77401>.
         || target.starts_with("i686")
-        // 32-bit PowerPC gets code generated that Qemu cannot handle. See
+        // 32-bit PowerPC and 64-bit LE gets code generated that Qemu cannot handle. See
         // <https://github.com/rust-lang/compiler-builtins/pull/606#issuecomment-2105635926>.
         || target.starts_with("powerpc-")
+        || target.starts_with("powerpc64le-")
         // FIXME: We get different results from the builtin functions. See
         // <https://github.com/rust-lang/compiler-builtins/pull/606#issuecomment-2105657287>.
         || target.starts_with("powerpc64-")