diff --git a/ci/run.sh b/ci/run.sh
index 4de8087699e24..b93529cb4c692 100755
--- a/ci/run.sh
+++ b/ci/run.sh
@@ -109,11 +109,18 @@ if [ "$TARGET" = "s390x-unknown-linux-gnu" ]; then
     sleep 1
   done
 else
+  # rm -rf target is executed before each build to ensure there are no leftover
+  # caches from previous builds. This happened at least in the FreeBSD CI,
+  # where the build script didn't re-execute across builds.
+
+  rm -rf target
   cargo test --no-default-features --manifest-path libc-test/Cargo.toml \
     --target "${TARGET}" ${LIBC_CI_ZBUILD_STD+"-Zbuild-std"}
 
+  rm -rf target
   cargo test --manifest-path libc-test/Cargo.toml --target "${TARGET}" ${LIBC_CI_ZBUILD_STD+"-Zbuild-std"}
 
+  rm -rf target
   RUST_BACKTRACE=1 cargo test --features extra_traits --manifest-path libc-test/Cargo.toml \
     --target "${TARGET}" ${LIBC_CI_ZBUILD_STD+"-Zbuild-std"}
 fi