Fix cmake build.

src/ci/docker/scripts/cmake.sh

@@ -5,16 +5,16 @@ hide_output() {
   set +x
   on_err="
 echo ERROR: An error was encountered with the build.
-cat /tmp/build.log
+cat /tmp/cmake_build.log
 exit 1
 "
   trap "$on_err" ERR
   bash -c "while true; do sleep 30; echo \$(date) - building ...; done" &
   PING_LOOP_PID=$!
-  "$@" &> /tmp/build.log
+  "$@" &> /tmp/cmake_build.log
   trap - ERR
   kill $PING_LOOP_PID
-  rm /tmp/build.log
+  rm /tmp/cmake_build.log
   set -x
 }