failed to use rclone:// location

[Alex Efros]

I'm using Debian 10 with manually installed (apt -b source from sid) latest backup tools:

$ lsb_release -d
Description: Debian GNU/Linux 10 (buster)

$ dpkg-query -W deja-dup duplicity rclone
deja-dup 40.6-1
duplicity 0.8.11.1612-1
rclone 1.51.0

The rclone "DO" backend is configured and duplicity is able to use it:

$ duplicity dir/ rclone://DO:/bucket/dir
Локальные и удалённые метаданные синхронизированы, синхронизация не требуется.
Время последней полной резервной копии: Wed May 27 00:00:45 2020
GnuPG passphrase for decryption:
Retype passphrase for decryption to confirm:
--------------[ Статистика резервного копирования ]--------------
StartTime 1590527591.15 (Wed May 27 00:13:11 2020)
EndTime 1590527591.23 (Wed May 27 00:13:11 2020)
ElapsedTime 0.08 (0.08 seconds)
SourceFiles 831
SourceFileSize 10685481 (10.2 MB)
NewFiles 0
NewFileSize 0 (0 bytes)
DeletedFiles 0
ChangedFiles 0
ChangedFileSize 0 (0 bytes)
ChangedDeltaSize 0 (0 bytes)
DeltaEntries 0
RawDeltaSize 0 (0 bytes)
TotalDestinationSizeChange 212 (212 bytes)
Errors 0
-----------------------------------------------------------------

But when I try to configure deja-dup to use same url it fails:

$ deja-dup --restore rclone://DO:/bucket/dir
** (org.gnome.DejaDup:7817): WARNING **: 00:15:56.266: BackendRemote.vala:70: Containing mount for file /home/me/rclone:/DO:/bucket/dir not found

When I try to create new backup using GUI I got error "volume doesn't implement mount".
GUI config is "Network location: rclone://DO:/bucket/dir", "Folder: ".

$ gsettings list-recursively org.gnome.DejaDup
org.gnome.DejaDup last-restore ''
org.gnome.DejaDup periodic true
org.gnome.DejaDup periodic-period 1
org.gnome.DejaDup full-backup-period 90
org.gnome.DejaDup backend 'remote'
org.gnome.DejaDup last-run '2020-05-26T09:28:44.494741Z'
org.gnome.DejaDup nag-check '2020-05-26T08:27:30.497630Z'
org.gnome.DejaDup prompt-check '2020-05-26T19:19:13.518128Z'
org.gnome.DejaDup include-list ['/home/me', '/etc']
org.gnome.DejaDup exclude-list ['$TRASH', '$DOWNLOAD', '/home/me/VirtualBox VMs', '/home/me/.cache', '/home/me/.dropbox-dist', '/home/me/.config/vivaldi/Default/Service Worker/CacheStorage', '/home/me/.config/vivaldi/Default/Service Worker/ScriptCache', '/home/me/.config/Keybase/Cache', '/home/me/.config/VirtualBox']
org.gnome.DejaDup last-backup '2020-05-26T09:28:44.494741Z'
org.gnome.DejaDup allow-metered false
org.gnome.DejaDup delete-after 0
org.gnome.DejaDup root-prompt true
org.gnome.DejaDup.Rackspace username ''
org.gnome.DejaDup.Rackspace container 'myhost'
org.gnome.DejaDup.S3 id ''
org.gnome.DejaDup.S3 bucket ''
org.gnome.DejaDup.S3 folder 'myhost'
org.gnome.DejaDup.OpenStack authurl ''
org.gnome.DejaDup.OpenStack tenant ''
org.gnome.DejaDup.OpenStack username ''
org.gnome.DejaDup.OpenStack container 'myhost'
org.gnome.DejaDup.GCS id ''
org.gnome.DejaDup.GCS bucket ''
org.gnome.DejaDup.GCS folder 'myhost'
org.gnome.DejaDup.Google folder 'myhost'
org.gnome.DejaDup.Local folder 'myhost'
org.gnome.DejaDup.Remote uri 'rclone://DO:/bucket/dir'
org.gnome.DejaDup.Remote folder ''
org.gnome.DejaDup.Drive uuid ''
org.gnome.DejaDup.Drive icon ''
org.gnome.DejaDup.Drive folder '$HOSTNAME'
org.gnome.DejaDup.Drive name ''
org.gnome.DejaDup.GOA id ''
org.gnome.DejaDup.GOA migrated false
org.gnome.DejaDup.GOA folder 'myhost'
org.gnome.DejaDup.GOA type ''
org.gnome.DejaDup.File short-name ''
org.gnome.DejaDup.File type 'normal'
org.gnome.DejaDup.File migrated true
org.gnome.DejaDup.File name ''
org.gnome.DejaDup.File path 'rclone://DO:/bucket/dir'
org.gnome.DejaDup.File uuid ''
org.gnome.DejaDup.File icon ''
org.gnome.DejaDup.File relpath @ay []

[Alex Efros (powerman-asdf)]

May be related to https://bugs.launchpad.net/deja-dup/+bug/1401552

[Michael Terry (mterry)]

rclone is not a supported Deja Dup backends, sorry. You’ll have to use duplicity directly.