cancel rust, change faster title, add faster speaker info

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diff --git a/2021/schedule-details.md b/2021/schedule-details.md
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@@ -36,15 +36,15 @@
 <tr><td colspan="4"><strong>Sunday, Nov 28, 2021: Development talks<strong></td></tr>
 <tr><td colspan="4"><strong>Sunday morning<strong></td></tr>
 <tr><td></td><td width=100>~ 9:00 AM</td><td><a href="/2021/talks/day2-open">Opening remarks day 2</a></td><td></td></tr>
-<tr><td></td><td width=100>~ 9:05 AM</td><td><a href="/2021/talks/faster">How to write faster Emacs Lisp</a></td><td>Dmitry Gutov</td></tr>
-<tr><td>captioned</td><td width=100>~ 9:30 AM</td><td><a href="/2021/talks/structural">Tree-edit: Structural editing for Java, Python, C, and beyond!</a></td><td>Ethan Leba</td></tr>
-<tr><td></td><td width=100>~ 9:43 AM</td><td><a href="/2021/talks/dsl">Self-Describing Smart DSL's: The Next Magits</a></td><td>Psionic</td></tr>
-<tr><td>received</td><td width=100>~10:06 AM</td><td><a href="/2021/talks/ui">Yak-shaving to a UI framework (/Help! I accidentally yak-shaved my way to writing a UI framework because overlays were slow/)</a></td><td>Erik Anderson</td></tr>
+<tr><td></td><td width=100>~ 9:05 AM</td><td><a href="/2021/talks/faster">Optimizing Emacs Lisp Code</a></td><td>Dmitry Gutov</td></tr>
+<tr><td>captioned</td><td width=100>~ 9:50 AM</td><td><a href="/2021/talks/structural">Tree-edit: Structural editing for Java, Python, C, and beyond!</a></td><td>Ethan Leba</td></tr>
+<tr><td></td><td width=100>~10:03 AM</td><td><a href="/2021/talks/dsl">Self-Describing Smart DSL's: The Next Magits</a></td><td>Psionic</td></tr>
+<tr><td>received</td><td width=100>~10:26 AM</td><td><a href="/2021/talks/ui">Yak-shaving to a UI framework (/Help! I accidentally yak-shaved my way to writing a UI framework because overlays were slow/)</a></td><td>Erik Anderson</td></tr>
 <tr><td></td><td width=100>~10:19 AM</td><td><a href="/2021/talks/rust">Extending Emacs in Rust with Dynamic Modules</a></td><td>Tuấn-Anh Nguyễn</td></tr>
-<tr><td>captioned</td><td width=100>~10:44 AM</td><td><a href="/2021/talks/mold">Moldable Emacs, a step towards sustainable software</a></td><td>Andrea</td></tr>
-<tr><td>captioned</td><td width=100>~10:58 AM</td><td><a href="/2021/talks/model">Extending the "model" of Emacs to other applications</a></td><td>Laszlo Krajnikovszkij</td></tr>
-<tr><td></td><td width=100>~11:11 AM</td><td><a href="/2021/talks/devel">Don't write that package! or: How I learned to stop worrying and love emacs-devel</a></td><td>Stefan Kangas</td></tr>
-<tr><td></td><td width=100>~11:36 AM</td><td><a href="/2021/talks/native">Emacs Lisp native compiler, current status and future developments</a></td><td>Andrea Corallo</td></tr>
+<tr><td>captioned</td><td width=100>~10:39 AM</td><td><a href="/2021/talks/mold">Moldable Emacs, a step towards sustainable software</a></td><td>Andrea</td></tr>
+<tr><td>captioned</td><td width=100>~10:53 AM</td><td><a href="/2021/talks/model">Extending the "model" of Emacs to other applications</a></td><td>Laszlo Krajnikovszkij</td></tr>
+<tr><td></td><td width=100>~11:06 AM</td><td><a href="/2021/talks/devel">Don't write that package! or: How I learned to stop worrying and love emacs-devel</a></td><td>Stefan Kangas</td></tr>
+<tr><td></td><td width=100>~11:31 AM</td><td><a href="/2021/talks/native">Emacs Lisp native compiler, current status and future developments</a></td><td>Andrea Corallo</td></tr>
 <tr><td colspan="4"><strong>Sunday afternoon<strong></td></tr>
 <tr><td></td><td width=100>~ 1:00 PM</td><td><a href="/2021/talks/form">Old McCarthy Had a Form</a></td><td>Ian Eure</td></tr>
 <tr><td>received</td><td width=100>~ 1:24 PM</td><td><a href="/2021/talks/bindat">Turbo Bindat</a></td><td>Stefan Monnier</td></tr>