I also experience this bug in Ubuntu 15.10 when trashing the trash- directory (either .Trash-1000 on external drives or ~/.local/share/Trash). The backtrace is attached.
However nautilus doesn't always crash, initially I thought it only happens when I select some files and additionally the trash-directory and then hit the Delete-key, but it also happens when I only try to trash the Trash-directory. I could not determine exactly what triggers the crash, sometimes nautilus behaves correctly by showing me the dialog that the directory can't be trashed and if I want to delete it immediately instead. But then sometimes this crash happens, it seems pretty random to me. This was tested in a fresh installation of Ubuntu 15.10 with all updates from the default package repositories up-to-date. ** Attachment added: "Backtrace of the crash. Happened when I tried to delete ~/.local/share/Trash" https://bugs.launchpad.net/ubuntu/+source/nautilus/+bug/1511457/+attachment/4583821/+files/gdb-nautilus.txt -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to nautilus in Ubuntu. https://bugs.launchpad.net/bugs/1511457 Title: using delete key on hidden trash folder, makes nautilus crash Status in nautilus package in Ubuntu: Incomplete Bug description: When working on an external hard drive, viewing the hidden folders I highlighted .trashes100 and pressed the delete key on the keyboard, this caused what I assume nautilus to try to trash the trash, ultimately leading to a crash. ProblemType: Bug DistroRelease: Ubuntu 15.10 Package: nautilus 1:3.14.2-0ubuntu12 ProcVersionSignature: Ubuntu 4.2.0-16.19-generic 4.2.3 Uname: Linux 4.2.0-16-generic x86_64 ApportVersion: 2.19.1-0ubuntu4 Architecture: amd64 CurrentDesktop: Unity Date: Thu Oct 29 11:05:05 2015 GsettingsChanges: b'org.gnome.nautilus.list-view' b'default-column-order' b"['name', 'size', 'type', 'date_modified', 'date_accessed', 'owner', 'group', 'permissions', 'mime_type', 'where']" InstallationDate: Installed on 2015-10-10 (19 days ago) InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422) SourcePackage: nautilus UpgradeStatus: Upgraded to wily on 2015-10-22 (7 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nautilus/+bug/1511457/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

