Rationale: We got some problems reported on flamer that the drop impls of
span guards are sometimes optimized out. Also we probably don't need to
care about panics (or want to record an unclosed span in that case
which would not happen with start_guard(_)).
Rationale: We got some problems reported on flamer that the drop impls of span guards are sometimes optimized out. Also we probably don't need to care about panics (or want to record an unclosed span in that case which would not happen with
start_guard(_)
).This fixes #8.