Function is_killed_exit 

pub fn is_killed_exit(exit_code: &str, oom_killed: &str) -> bool

Whether the inspected facts describe a killed main process.

Exit 137 (SIGKILL, the OOM killer’s signal) always counts. OOMKilled alone does not: Docker sets it when any process in the container’s cgroup was OOM-killed (a compiler, a test runner, a child node), and it stays set until the container is started again. A main process that survived that and then exited 0-127 on its own ran to completion, so the flag only counts when there is no usable exit status (the watcher’s -1, or nothing at all) (issue #178).