diff --git a/fastmanifest/implementation.py b/fastmanifest/implementation.py
--- a/fastmanifest/implementation.py
+++ b/fastmanifest/implementation.py
@@ -10,7 +10,13 @@
 import time
 import heapq
 
-from mercurial import manifest, mdiff, revlog, util
+from mercurial import (
+    error,
+    manifest,
+    mdiff,
+    revlog,
+    util,
+)
 import cachemanager
 import cfastmanifest
 from metrics import metricscollector
@@ -140,15 +146,29 @@
                 self.__treemanifest = cstore.treemanifest(store)
             else:
                 store = self.manifestlog.datastore
+                self.ui.pushbuffer()
                 try:
                     store.get('', self.node)
                     self.__treemanifest = cstore.treemanifest(store,
                                                               self.node)
-                except KeyError:
+                    # The buffer is only to eat certain errors, so show
+                    # non-error messages.
+                    output = self.ui.popbuffer()
+                    if output:
+                        self.ui.status(output)
+                except (KeyError, error.Abort):
                     # Record that it doesn't exist, so we don't keep checking
                     # the store.
+                    self.ui.popbuffer()
+                    # Eat the buffer so we don't print a remote: warning
                     self.__treemanifest = False
                     return None
+                except:
+                    # Other errors should be printed
+                    output = self.ui.popbuffer()
+                    if output:
+                        self.ui.status(output)
+                    raise
 
         return self.__treemanifest
 
diff --git a/treemanifest/__init__.py b/treemanifest/__init__.py
--- a/treemanifest/__init__.py
+++ b/treemanifest/__init__.py
@@ -1024,6 +1024,16 @@
         raise error.Abort(_('pull failed on remote'), hint=exc.hint)
     except error.BundleValueError as exc:
         raise error.Abort(_('missing support for %s') % exc)
+    finally:
+        # Manually destruct the peer, so we can collect any error output
+        remote.ui.pushbuffer()
+        remote._cleanup()
+
+        # Redirect cleanup output to the repo.ui so callers can buffer it if
+        # desired.
+        output = remote.ui.popbuffer()
+        if output:
+            repo.ui.status(output)
 
 def _registerbundle2parts():
     @bundle2.parthandler(TREEGROUP_PARTTYPE2, ('version', 'cache', 'category'))