cirrus: containers: mount directory in /var/tmp to /tmp
Mount a directory from /var/tmp to /tmp to make sure that /tmp is not on
an overlay mount.  This should make overlay mounts possible in the
containerized tests which we're currently skipping.
@@ -117,6 +117,7 @@ exec_container() {
set -x
# shellcheck disable=SC2154
exec podman run --rm --privileged --net=host --cgroupns=host \
+ -v `mktemp -d -p /var/tmp`:/tmp:Z \
-v /dev/fuse:/dev/fuse \
-v "$GOPATH:$GOPATH:Z" \
--workdir "$GOSRC" \
