diff -r 4313a0d7540d -r 9f96beb9bafe mercurial/debugcommands.py
--- a/mercurial/debugcommands.py	Fri May 29 12:12:16 2020 +0200
+++ b/mercurial/debugcommands.py	Fri May 29 12:17:59 2020 +0200
@@ -1650,13 +1650,6 @@
     fm.plain(_(b'checking "re2" regexp engine (%s)\n') % re2)
     fm.data(re2=bool(util._re2))
 
-    rust_debug_mod = policy.importrust("debug")
-    if rust_debug_mod is not None:
-        re2_rust = b'installed' if rust_debug_mod.re2_installed else b'missing'
-
-        msg = b'checking "re2" regexp engine Rust bindings (%s)\n'
-        fm.plain(_(msg % re2_rust))
-
     # templates
     p = templater.templatepaths()
     fm.write(b'templatedirs', b'checking templates (%s)...\n', b' '.join(p))