/github.com/rust-lang/rust/issues/3101">#3101</a> is the issue that proposed making this the only behavior, with
rationale and discussion.</p>

<h2 id='no-guaranteed-tail-call-optimization' class='section-header'><a href='#no-guaranteed-tail-call-optimization'>1.7 No guaranteed tail-call optimization</a></h2>
<p>In general, tail-call optimization is not guaranteed: see <a href="https://mail.mozilla.org/pipermail/rust-dev/2013-April/003557.html">here</a> for a
detailed explanation with references. There is a