Enum Probe 

pub enum Probe {
    Exit(i32),
    TimedOut(u64),
    Failed,
}

How a bounded network probe ended. Exit codes stay visible because the callers need to keep git’s answers apart: ls-remote --exit-code exits 2 for “connected, no such ref” and 128 for “could not connect”, and reading those as one boolean is how offline got reported as “upstream deleted”.

Variants

Exit(i32)

Ran to completion with this exit code.

TimedOut(u64)

Killed at the deadline; carries the budget it exceeded, in seconds.

Failed

Could not spawn, or died to a signal — “git did not answer”.