`guix locate guild' fails with attempt to write a readonly sqlite3 database

mwette@bluefin$ strace -o logx guix locate guild
guix locate: indexing files from /gnu/store...
guix locate: traversing local profile manifests...
Backtrace:
           13 (primitive-load "/home/mwette/.config/guix/current/bin/…")
In guix/ui.scm:
    2323:7 12 (run-guix . _)
   2286:10 11 (run-guix-command _ . _)
In ice-9/boot-9.scm:
   1752:10 10 (with-exception-handler _ _ #:unwind? _ # _)
In guix/scripts/locate.scm:
     621:8  9 (_)
     123:8  8 (call-with-database _ _)
In guix/progress.scm:
     71:36  7 (call-with-progress-reporter _ _)
In srfi/srfi-1.scm:
     634:9  6 (for-each #<procedure 7f179a23ca00 at guix/scripts/loc…> …)
In guix/scripts/locate.scm:
     442:2  5 (_ _)
     286:2  4 (insert-files #<<sqlite-db> pointer: #<pointer 0x1f98f…> …)
In srfi/srfi-1.scm:
     634:9  3 (for-each #<procedure 7f179abb3000 at guix/scripts/loc…> …)
In sqlite3.scm:
    637:15  2 (sqlite-fold #<procedure 7f179a23c5a0 at ice-9/boot-9.…> …)
     166:2  1 (_ _)
In ice-9/boot-9.scm:
   1685:16  0 (raise-exception _ #:continuable? _)

ice-9/boot-9.scm:1685:16: In procedure raise-exception:
Throw to key `sqlite-error' with args `(#f 8 "attempt to write a 
readonly database")'.
indexing 1,654 packages
mwette@bluefin$