unknown loop label

Why this fires¶

break :label or continue :label names no lexically active loop. Labels do not cross function or lambda boundaries. A spawned task (spawn expr or a spawn { ... } block) and callbacks scheduled with every, after, or timeout also start a new control-flow region, so they cannot jump to a loop in the caller.

loop {
    break :missing // error[TE225]
}

Fix it¶

Spell the target exactly as it appears on an enclosing loop, or remove the label to target the innermost loop.

:search loop {
    break :search
}

See also¶

• TE226 — the same label is active more than once.
• TE227 — loop control appears outside every loop.