bug#27371: 26.0.50; Unexpected element (define-type . tramp-file-name) in load-history

[Michael Albinus <michael.albinus@gmx.de>]

1. emacs -Q -l tramp
2. M-x unload-feature <RET> tramp

=> Unexpected element (define-type . tramp-file-name) in load-history

In GNU Emacs 26.0.50 (build 44, x86_64-pc-linux-gnu, GTK+ Version 2.24.30)
 of 2017-03-31 built on detlef
Repository revision: 1da9a207669a3cf5d27ac1dd61543c1492e05360
System Description:	Ubuntu 17.04

Recent messages:
Mark set
uncompressing 23073.gz...done
Deleting article 23073 in default
No more unseen articles
Mark set
Returning to the group buffer
Saving /home/albinus/.newsrc.eld...
Saving file /home/albinus/.newsrc.eld...
Wrote /home/albinus/.newsrc.eld
Saving /home/albinus/.newsrc.eld...done

Configured features:
XPM JPEG TIFF GIF PNG RSVG SOUND GPM DBUS GCONF GSETTINGS NOTIFY GNUTLS
LIBXML2 FREETYPE M17N_FLT LIBOTF XFT ZLIB TOOLKIT_SCROLL_BARS GTK2 X11

Important settings:
  value of $LANG: en_US.UTF-8
  locale-coding-system: utf-8

Major mode: Lisp Interaction

Minor modes in effect:
  diff-auto-refine-mode: t
  erc-notify-mode: t
  erc-notifications-mode: t
  erc-list-mode: t
  erc-menu-mode: t
  erc-autojoin-mode: t
  erc-ring-mode: t
  erc-networks-mode: t
  erc-pcomplete-mode: t
  erc-track-mode: t
  erc-match-mode: t
  erc-button-mode: t
  erc-fill-mode: t
  erc-stamp-mode: t
  erc-netsplit-mode: t
  erc-irccontrols-mode: t
  erc-noncommands-mode: t
  erc-move-to-prompt-mode: t
  erc-readonly-mode: t
  display-time-mode: t
  shell-dirtrack-mode: t
  icomplete-mode: t
  show-paren-mode: t
  tooltip-mode: t
  global-eldoc-mode: t
  electric-indent-mode: t
  mouse-wheel-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  column-number-mode: t
  line-number-mode: t
  transient-mark-mode: t

Load-path shadows:
/home/albinus/src/elpa/packages/debbugs/debbugs-org hides /home/albinus/.emacs.d/elpa/debbugs-0.14/debbugs-org
/home/albinus/src/elpa/packages/debbugs/debbugs-gnu hides /home/albinus/.emacs.d/elpa/debbugs-0.14/debbugs-gnu
/home/albinus/src/elpa/packages/debbugs/debbugs hides /home/albinus/.emacs.d/elpa/debbugs-0.14/debbugs
/home/albinus/src/elpa/packages/debbugs/debbugs-autoloads hides /home/albinus/.emacs.d/elpa/debbugs-0.14/debbugs-autoloads
/home/albinus/src/elpa/packages/debbugs/debbugs-pkg hides /home/albinus/.emacs.d/elpa/debbugs-0.14/debbugs-pkg
/home/albinus/src/elpa/packages/debbugs/debbugs-browse hides /home/albinus/.emacs.d/elpa/debbugs-0.14/debbugs-browse
/home/albinus/src/elpa/packages/tramp-theme/tramp-theme hides /home/albinus/.emacs.d/elpa/tramp-theme-0.1.1/tramp-theme
/home/albinus/src/elpa/packages/tramp-theme/tramp-theme-autoloads hides /home/albinus/.emacs.d/elpa/tramp-theme-0.1.1/tramp-theme-autoloads
/home/albinus/src/elpa/packages/tramp-theme/tramp-theme-pkg hides /home/albinus/.emacs.d/elpa/tramp-theme-0.1.1/tramp-theme-pkg
/home/albinus/.emacs.d/elpa/telepathy-20131209.458/telepathy hides ~/lisp/telepathy
~/src/tramp/lisp/tramp-smb hides /usr/local/share/emacs/26.0.50/lisp/net/tramp-smb
~/src/tramp/lisp/tramp-uu hides /usr/local/share/emacs/26.0.50/lisp/net/tramp-uu
~/src/tramp/lisp/tramp-adb hides /usr/local/share/emacs/26.0.50/lisp/net/tramp-adb
~/src/tramp/lisp/tramp-compat hides /usr/local/share/emacs/26.0.50/lisp/net/tramp-compat
~/src/tramp/lisp/tramp hides /usr/local/share/emacs/26.0.50/lisp/net/tramp
~/src/tramp/lisp/trampver hides /usr/local/share/emacs/26.0.50/lisp/net/trampver
~/src/tramp/lisp/tramp-ftp hides /usr/local/share/emacs/26.0.50/lisp/net/tramp-ftp
/home/albinus/.emacs.d/elpa/soap-client-3.1.2/soap-client hides /usr/local/share/emacs/26.0.50/lisp/net/soap-client
/home/albinus/.emacs.d/elpa/soap-client-3.1.2/soap-inspect hides /usr/local/share/emacs/26.0.50/lisp/net/soap-inspect
~/src/tramp/lisp/tramp-cmds hides /usr/local/share/emacs/26.0.50/lisp/net/tramp-cmds
~/src/tramp/lisp/tramp-gvfs hides /usr/local/share/emacs/26.0.50/lisp/net/tramp-gvfs
~/src/tramp/lisp/tramp-loaddefs hides /usr/local/share/emacs/26.0.50/lisp/net/tramp-loaddefs
~/lisp/dbus hides /usr/local/share/emacs/26.0.50/lisp/net/dbus
~/src/tramp/lisp/tramp-sh hides /usr/local/share/emacs/26.0.50/lisp/net/tramp-sh
~/src/tramp/lisp/tramp-cache hides /usr/local/share/emacs/26.0.50/lisp/net/tramp-cache

Features:
(shadow warnings emacsbug time-stamp url-http url-gw url-auth url-queue
url-cache url url-proxy url-privacy url-expand url-methods url-history
url-cookie url-domsuf diff-mode easy-mmode flow-fill sort gnus-cite
url-util shr-color color shr svg dom browse-url mm-archive mail-extr
gnus-bcklg qp gnus-async gnus-ml pop3 utf-7 nndraft nnmh nnml
network-stream nsm starttls gnus-agent gnus-srvr gnus-score score-mode
nnvirtual gnus-msg gnus-art mm-uu mml2015 mm-view mml-smime smime dig
mailcap gnus-cache gnus-sum nnnil smtpmail sendmail gnus-demon nntp
gnus-group gnus-undo gnus-start gnus-cloud nnimap nnmail mail-source tls
gnutls utf7 netrc nnoo gnus-spec gnus-int gnus-range message puny rfc822
mml mml-sec epa derived epg mm-decode mm-bodies mm-encode mail-parse
rfc2231 mailabbrev gmm-utils mailheader gnus-win gnus nnheader gnus-util
rmail rmail-loaddefs rfc2047 rfc2045 ietf-drums mail-utils mm-util
mail-prsvr term/xterm xterm erc-notify erc-desktop-notifications
notifications dbus xml erc-list erc-menu erc-join erc-ring erc-networks
erc-pcomplete erc-track erc-match erc-button wid-edit erc-fill erc-stamp
erc-netsplit erc-goodies erc erc-backend erc-compat thingatpt pp
cperl-mode tramp-theme em-dirs esh-var esh-io esh-cmd esh-opt esh-ext
esh-proc esh-arg esh-groups eshell esh-module esh-mode esh-util
finder-inf rx docker-tramp tramp-cache slime-autoloads vagrant-tramp
dash term disp-table ehelp info package epg-config url-handlers
url-parse url-vars time tramp-sh tramp-cmds tramp tramp-compat
tramp-loaddefs trampver ucs-normalize shell pcomplete comint ansi-color
ring parse-time format-spec advice auth-source cl-seq eieio eieio-core
cl-macs eieio-loaddefs password-cache ido seq byte-opt subr-x gv
bytecomp byte-compile cl-extra help-mode easymenu cconv jka-compr
icomplete time-date paren vc cl-loaddefs pcase cl-lib vc-dispatcher
dired dired-loaddefs mule-util tooltip eldoc electric uniquify
ediff-hook vc-hooks lisp-float-type mwheel term/x-win x-win
term/common-win x-dnd tool-bar dnd fontset image regexp-opt fringe
tabulated-list replace newcomment text-mode elisp-mode lisp-mode
prog-mode register page menu-bar rfn-eshadow isearch timer select
scroll-bar mouse jit-lock font-lock syntax facemenu font-core
term/tty-colors frame cl-generic cham georgian utf-8-lang misc-lang
vietnamese tibetan thai tai-viet lao korean japanese eucjp-ms cp51932
hebrew greek romanian slovak czech european ethiopic indian cyrillic
chinese composite charscript case-table epa-hook jka-cmpr-hook help
simple abbrev obarray minibuffer cl-preloaded nadvice loaddefs button
faces cus-face macroexp files text-properties overlay sha1 md5 base64
format env code-pages mule custom widget hashtable-print-readable
backquote dbusbind inotify dynamic-setting system-font-setting
font-render-setting move-toolbar gtk x-toolkit x multi-tty
make-network-process emacs)

Memory information:
((conses 16 453817 58583)
 (symbols 48 42157 120)
 (miscs 40 69 285)
 (strings 32 100342 15319)
 (string-bytes 1 3099767)
 (vectors 16 60096)
 (vector-slots 8 992964 10665)
 (floats 8 436 632)
 (intervals 56 302 0)
 (buffers 976 23))